10. A 6.0 kg block rests on top of a 7.0 kg block, which rests on a horizontal table. a. What is the force (magnitude and direction) exerted by the 7.0 kg block on the 6.0 kg block? b. What is the force (magnitude and direction) exerted by the 6.0 kg block on the 7.0 kg block?​

Answers

Answer 1

Answer:

Below

Explanation:

The 7 kg block is pushing UP on the 6kg block to keep it from falling

   force = ma = 6 kg * 9.81 m/s = 58.9 N

The 6 kg block is pushing DOWN on the 7 kg block with an equal but opposite force    58.9 N


Related Questions

EASY WORK! Yes it’s easy for other people but not me for people asking.Also click on the photo.

Answers

B force and D. Velocity because 1 is a force that push and pulls obviously makes since and D. A force that is size

Answer: Force and Direction

Explanation:

4. Kenny Kinematic notes that he is at mile marker 334 on the highway. He travels south to mile marker 181. What is his displacement?

Answers

Answer:

153miles

Explanation:

Distance on the highway = +334miles

Distance through south = -181miles (towards the negative direction)

Displacement will be the sum of the distances

Displacement = +334-181

Displacement = 153miles

Hence the displacement is 153miles

Which image represents a transverse mechanical wave?

Answers

Answer:

A

Explanation:

It is kinda like a spring.

The image which represents a transverse mechanical wave is A.

What is a mechanical wave?

The wave has motion if all points on a wave vibrate at right angles to the direction of the wave propagation.

A transverse wave is a mechanical wave which is much like sinusoidal wave which has particles vibrating about their equilibrium position perpendicular to the direction of the motion of the wave.

Hence, the image which represents a transverse mechanical wave is A.

Learn more about mechanical wave.

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Although 0 dB is often referred to as the lower threshold of human hearing, it is important to realize that the human ear is not equally sensitive to all frequencies of sound. In other words, a particular noise may sound louder or softer depending on the frequency of the sound wave being transmitted. Because of this variation, scientists have defined a unit of loudness, called a phon, to represent the intensity of sound waves with a frequency of 1000 Hz. A 60-phon sound is one that is perceived by the human ear to have the same loudness as a sound wave with an intensity of 60 dB and a frequency of 1000 Hz.

Required:
a. At approximately what frequency do most people perceive the least intense sounds? Answer numerically in hertz to two significant figures.
b. Normal conversation has a sound level of about 60 dB. How many times more intense must a 100-Hz sound be compared to a 1000-Hz sound to be perceived as equal to 60 phons of loudness?

Answers

Answer:

20 Hz

15.8 times

Explanation:

A

Although the range of frequency for any human's ear is usually said to be between 20 Hz and 20 kHz. And since the question asked for the least intense frequency, that has to be 20 Hz. Essentially the frequency most people perceive the least intense sound is 20 Hz.

B

A 100-Hz sound must be 10^1.2 times or 15.8 times more intense compared to a 1000-Hz sound to be perceived as equal to 60 phons of loudness

Which describes increasing the efficiency of an energy resource?
switching from coal to solar

making cars that get better gas mileage

using biomass instead of coal

turning off the lights when leaving a room

Answers

Answer:

making cars that get better gas mileage

Answer: Making cars that get better gas

Explanation: Gradpoint

The combination of an applied force and a friction force produces a constant torque of 36.0 N⋅m on a wheel rotating on a fixed axis. While the force acts for 6.00 s, the angular velocity of the wheel increases from 0 to 10.0 rad/s. The force is removed and the wheel comes to rest in 60.0 s
a. Find the moment of inertia of the wheel.
b. Find the magnitude of the torque due to friction.
c. Find the total number of rotations during the 66.0 s.
d. Find the Kinetic energy of the wheel at 6.00 s when the force is removed.

Answers

Answer:

D. Find the kinetic energy of the wheel at 6.00 z when the force is removed.

The ancient Egyptians used the stars to _____.

predict annual flooding

make their calendar

harvest their crops

choose their pharaoh

Answers

Answer:

predict annual flooding

Answer:

I'm pretty sure it is b make their calander

A proud new Jaguar owner drives her car at a speed of 35 m/s into a corner. The coefficients of friction between the road and the tires are 0.70 (static) and 0.40 (kinetic). What is the minimum radius of curvature for the corner in order for the car not to skid

Answers

Answer:

178.6 m

Explanation:

Since the car moves in a circular path, it experiences a centripetal force, F = mv²/r where m = mass of car, v = speed of car = 35 m/s and r = radius of curvature of path.

Now, for the car not to skid, this centripetal force must be equal to the frictional force, F' acting in the opposite direction.

So, F' = μN where μ = coefficient of static friction(since the car does not move in this direction) and N = normal force = mg where m = mass of car and g = acceleration due to gravity = 9.8m/s²

F' = μmg

Since F = F'

mv²/r = μmg

dividing both sides by m, we have

v²/r = μg

multiplying both sides by r, we have

v² = μgr

dividing both sides by μg, we have

r = v²/μg

Here we use μ = coefficient of static friction(since the car does not move in this direction) = 0.70. Substituting the other variables into the equation, we have

r = v²/μg

r = (35 m/s)²/(0.70 × 9.8m/s²)  

r = 1225 m²/s²/6.86m/s²)  

r = 178.6 m

So, the minimum radius of curvature of the corner is 178.6 m

Matter is made of small particles to small to be seen. Which of these best describe evidence of this statement? 1. Tara’s crayons melted when she left them under the sun. 2. Kerris glass of water overflowed when she added ice. 3. Sams basketball expands as he pumps air into it. 4. Stephanie dropped a vase and it broke into pieces.

Answers

Answer:

Explanation:

I think the answer is statement no 3.

Hope it helps.

Answer:

1 Tara's crayons melted when she left them under the sun

energy in a stretched spring

Answers

Answer:

Elastic potential energy is the potential energy stored by stretching or compressing an elastic object by an external force such as the stretching of a spring. It is equal to the work done to stretch the spring which depends on the spring constant k and the distance stretched.

Hope this helps :)

-ilovejiminssi♡

A woman accidentally drops a flowerpot from a windowsill at a height d above the street towards a man of height h standing below. The woman calls out to the man in just enough time for the man to move out of the way. If the man needs a time interval of Δt to respond to the warning, at what height above the street will the flowerpot be when the woman calls out the warning? (Use the following as necessary: d, h, Δt, v for the speed of sound, and g for gravitational acceleration.)

Answers

Answer:

h^2 - ( 2t_o v_s + 2v_s^2 /g) h + v_s^2  \  t_o^2 =0

The correct result is that of a positive height

Explanation:

For this exercise we use the kinematic relations, let's start by finding the time it takes for the sound to reach the man

             v_s = y / t

             t = [tex]\frac{y}{ v_s}[/tex]

this height is y = h

             t =  \frac{h}{ v_s}

the man has a response time of t = t₀, therefore

time to move is

             t' =  t - t₀

             

the initial height of flower pot is

           y = y₀ + v₀ t' - ½ g  t'²

when it reaches the floor the height is zero y = 0 and as the pot is dropped its initial velocity is zero v₀ = 0

            0 = y₀ +0 - ½ g (t -t₀)²

if the initial height is i = h,

             

            h = ½ g ([tex]\frac{h}{v_s}[/tex] - t₀)²2

            [tex]\frac{2}{g} h[/tex] = [tex]\frac{h^2}{v_s^2}[/tex] - [tex]\frac{2t_o }{v_s} h[/tex] + t₀²

            [tex]\frac{h^2}{v_s^2} - ( \frac{2t_o}{v_s} + \frac{2}{g} ) h + t_o^2 = 0[/tex]h2 / vs2 - (2nd / vs + 2 / g) h + to2 - = 0

            [tex]h^2 - ( 2t_o v_s + 2v_s^2 /g) h + v_s^2 \ t_o^2 =0[/tex]

 

To know the height, you must solve the second degree equation, it is much easier with numerical values.

             The correct result is that of a positive height

Three joules of work is needed to shift 10 C of charge from one place to another. The potential difference between the places is ______. *
0.3 V
0.5 V
5 V
3 V​

Answers

Answer:

The potential difference between the places is 0.3 V.

∴ 1st option i.e. 0.3V is the correct option.

Explanation:

Given

Work done W = 3J

Amount of Charge q = 10C

To determine

We need to determine the potential difference V between the places.

The potential difference between the two points can be determined using the formula

Potential Difference (V) = Work Done (W) / Amount of Charge (q)

or

[tex]\:V\:=\:\frac{W}{q}[/tex]

substituting W = 3 and q = 10 in the formula

[tex]V=\frac{3}{10}[/tex]

[tex]V=0.3[/tex] V

Therefore, the potential difference between the places is 0.3 V.

∴ 1st option i.e. 0.3V is the correct option.

Help plz with both I’ll mark brainliest

Answers

The first one is to save your ears from the decibels
Save wars from decaibles and the second is C

something that orbiys other things in space​

Answers

Answer: well we all orbit the sun all the planets do so the

SuN

Explanation: two words common sense

Which of the following diagrams would be a good, strong magnet?​

Answers

I think A but I’m most likely wrong

Plzz answer correctly

Answers

Answer:

B.

Explanation:

Which statement best compares coal and ores?

Both are burned for energy.
Both take millions of years to form.
Both require oxygen to form.
Both are used to make coins.

Answers

Answer:

Option 2 both take millions of years to form

Explanation:

Both  coal and ores take millions of years to form.

What are ores?

Ore is a naturally occurring rock or silt that has precious minerals in it that may be extracted, processed, and sold for a profit. These minerals are usually metals. Mining is the process of removing ore from the soil. The valuable metals or minerals are then removed by treating or refining the ore, frequently through smelting.

The concentration of the desired ingredient in an ore is referred to as its grade. To decide if a rock has a high enough grade to be worth mining and is therefore regarded as an ore, the value of the metals or minerals it contains must be evaluated against the expense of extraction.

Typically, oxides, sulphides, silicates, or native metals like copper or gold are the minerals of interest. To separate the valuable components from the waste rock, ore must be treated. Numerous geological processes collectively known as ore genesis are responsible for the formation of ore deposits.

Learn more about ore here:

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If used with godly wisdom, the earth has sufficient resources to sustain its human population.

Answers

Yeah I mean people think it’s wrong to take from the earth like shells or plants but the universe provides for us you aren’t steeling from the earth she provides for us

A cyclist cover 6km in 20minutes. His speed is ​

Answers

Answer:

The speed of a cyclist is 0.3 km/min.

Explanation:

Given

The distance d = 6km Time t = 20 minutes

To determine

We need to determine the speed of a cyclist.

In order to determine the speed of a cyclist, all we need to do is to divide the distance covered by a cyclist by the time taken to cover the distance.

We know the formula involving speed, time, and distance

[tex]s=\frac{d}{t}[/tex]

where

s = speedd = distance coveredt = time taken

substitute d = 6, and t = 20 in the formula

[tex]s=\frac{d}{t}[/tex]

[tex]s=\frac{6}{20}[/tex]

Cancel the common factor 2

[tex]s=\frac{3}{10}[/tex]

[tex]s=0.3[/tex] km/min

Thus, the speed of a cyclist is 0.3 km/min.

0.3km/m
Trust the other guy he’s right and dont forget to give him BRAINLIEST

Your bike is too big if your can't touch the ground A.Knees B.Hands C.Feet​

Answers

Answer: C: Feet

Explanation: Why...

The force that is applied to other objects from the electric field *
A. ions
B. electric field
C. electric force
D. static charge

Answers

electric force hope this helps!!!

Canon launch is a 4.0 kg bowling ball with 50 J of kinetic energy what is the bowling ball speed

Answers

Answer:

5 m/s

Explanation:

50=1/2*4v^2

4*1/2=2

25*2=50

so...

square rood of 25 is 5

answer 5 m/s

sorry if that didn't make since

An iron block of 12 kg undergoes a process during which there is a heat gain from the block at 2 kJ/kg, an elevation increase of 32 m, and a decrease in velocity from 40 m/s to 7 m/s. During the process, which also involves work transfer, the internal energy of the block increases by 70 kJ. Suppose the total energy of the system remains constant. Determine the work transfer during the process in kJ and indicate whether the work is done on/by the system.

Answers

Answer:

Explanation:

Total heat gain by the block ΔQ = 2 x 12 kJ = 24 kJ .

Gain of potential energy = mgh = 12 x 9.8 x 32 = 3.763 kJ

Decrease in kinetic energy KE = 1/2 x 12 ( 40² - 7² )

= 9.306 kJ

increase in internal energy ΔE = 70 kJ

ΔQ =  ΔE + PE - KE + W , W is work done by the gas

Putting the values

24 = 70 + 3.763 - 9.306 + W

W = - 40.457 kJ .

Since W is negative that means work is done on the system .

Which is an example of positive peer pressure?
O A parent telling her son to wear his seatbelt.
O A student asking others to join the leadership club.
O a teen encouraging a friend to drink alcohol.
O A teacher telling his students to have a safe weekend.

Answers

Answer:

B. A student asking others to join the leadership club.

Explanation:

A parent isn't a peer, therefore can't be peer pressure. Drinking is negative for your body, therefore not positive peer pressure. A teacher isn't a peer, therefore the only answer left is B.

what is the mystery Greene discussion and why does he say it is something we should all care about ​

Answers

Answer:

The mystery that Greene discusses is that dark energy is causing the expansion of the universe to accelerate. However, this cannot be explained by the laws of Physics.

Explanation:

I majored in Physics

Use Newton's laws of motion to explain why it is important that baseballs and softballs each have a small acceptable range of masses.​

Answers

Explanation:

new non law neutron means neutral then it's important that baseball and softball features small respectable range of masses soft it means that when a ball hits anything hard it comes back by the Newton Law if the baseball is big and the small boy small and then if the contract with each other they ignore triple so when a ball hits the wall if the comeback because of the Mutants and when a big ball if we throw it to the wall it doesn't come that it comes back but in a very low way because it contains less neutrons in it if it is helpful please share with me

HELPPPPP
What can you infer about the strength and direction of forces experienced by the pod and space station when they collided? What evidence from today’s activities supports your inference?

Answers

Answer:

In the collision, the strength of the force exerted on the pod is greater than the strength of the force exerted on the space station, but those forces are exerted in opposite directions.

Explanation:

This is the build up of substance such as pesticides in an organism and occurs when an organism absorb a substance at a rate faster than that at which the substance is lost

Answers

Answer:

which the substance is lost by catabolism and excretion.

Explanation:

Galileo
o did not believe friction existed
o believed that friction stopped objects in motion
o believed that friction kept objects in motion
О
assumed that in a frictionless environment objects would never move

Answers

Answer:

object would move but it could be difficult to slow down or stop.

1
What kind of adaptation is a long neck on a tortoise? *
(10 Points)
O
A. Structural
B. Behavioral
a
C. Functional
a
D. Physiological

Answers

Answer:

The answer is ......... structural adaptation

Explanation:

because structural adaptations is a physical thinng in their  body so its A please give me brainliest  

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Explain the difference between version-oriented and change-oriented configuration management. he heisenberg uncertainty principle can be stated: a. one cannot with certainty define which quantum state a hydrogen atom is in. (True or False) 50 POINTSSS PLEASE HELP Create a list of steps, in order, that will solve the following equation2(x+3) 5 = 123Solution steps:Add 2 to both sidesAdd 5 to both sidesDivide both sides by 2Multiply both sides by 2Subtract 5 from both sidesSubtract from both sidesSquare both sidesTake the square root of both sides 3) an electric field is given by ex = 2.0x3 kn/m3 c. find the potential difference between the points on the x-axis at x = 1 m and x = 2 m. FILL IN THE BLANK. A declaration of __________ compliance affirms that the organization's membership has been trained to specific levels and the command system's use is institutionalized. Following is information on the price per share and the dividend for a sample of 30 companies.CompanyPrice per ShareDividend1$20.11$3.14222.123.36.........3978.0217.654080.1117.36a. Calculate the regression equation that predicts price per share based on the annual dividend. (Round your answers to 4 decimal places.)b-2. State the decision rule. Use the 0.05 significance level. (Round your answer to 3 decimal places.)b-3. Compute the value of the test statistic. (Round your answer to 4 decimal places.)c. Determine the coefficient of determination. (Round your answer to 4 decimal places.)d-1. Determine the correlation coefficient. (Round your answer to 4 decimal places.)e. If the dividend is $10, what is the predicted price per share? (Round your answer to 4 decimal places.)f. What is the 95% prediction interval of price per share if the dividend is $10? (Round your answers to 4 decimal places.) many modern film composers have incorporated __________ in their music, a technique found in music dramas by wagner. Comparative balance sheets for 2021 and 2020, a statement of income for 2021, and additional information from the accounting records of Red, Inc., are provided below.RED, INC.Comparative Balance SheetsDecember 31, 2021 and 2020 ($ in millions)20212020AssetsCash$40$148Accounts receivable200148Prepaid insurance129Inventory300191Buildings and equipment432366Less: Accumulated depreciation(135)(256)$849$606LiabilitiesAccounts payable$103$132Accrued liabilities1119Notes payable760Bonds payable1890Shareholders EquityCommon stock416416Retained earnings5439$849$606 . Without oxygen, our cells cannot work.Which of the following might be an explanation why someone feels weak?a. They do not have enough hemoglobinb. They do not have enough red blood cellsc. Either a or b would cause someone to feel tired and weak Determine which ordered pairs are in the solution set of 6x - 2y < 8. solution not solution (0,-4)(-4,0)(-6,2)(6,-2)(0,0) If you double the area of a parallel plate capacitor and quadruple the distance between the plates,what affect does this have on the capacitance? in part d, how are the potential differences across the resistor, inductor, and capacitor related to the potential difference across the ac source? Let sin A = 1/3 where A terminates in Quadrant 1, and let cos B = 2/3, where B terminates in Quadrant 4. Using the identity: cos(A-B)=cosACosB+sinAsinBfind cos(A-B) in the second phase of the condemnation proceeding, the court determines the fair value of the land, which is: Consider two independent random samples with the following results: 392 2 259 x1 = 251 x2 = 77 Use this data to find the 95 % confidence interval for the true difference between the population proportions. Step 2 of 3: Find the margin of error. Round your answer to six decimal places A company bought a new $66,000 heating system. The company paid $62,400 cash and was given a trade-in of $3,600 on an old heating system. The old system had an original cost of $59,700 and accumulated depreciation of $53,800. If the transaction has commercial substance, the company should record the new heating system at:____ xx rays with initial wavelength 6.80102 nmnm undergo compton scattering. part a what is the largest wavelength found in the scattered xx rays? how many rings are present in c18h29bro3? this compound consumes 2 mol of h2 on catalytic hydrogenation. enter your answer in the provided box. What is the vapor pressure of a solution that contains 2.60 mol glucose dissolved in 100.0 g of water? The vapor pressure of pure water is 2.4 kPa.Answer choices3.5 kPa0.28 kPa0.77 kPa1.6 kPa credit card balances are group of answer choices a. part of m1. b. part of m2. c. part of m3. d. not part of the money supply.