what do you mean by MA of lever is 2 ​

Answers

Answer 1

Answer:

MA of a lever is 2. It means the lever can lift a load of 2 times heavier than the effort


Related Questions

How does metamorphic rock change into another type of metamorphic rock?

Answers

Metamorphic rocks are formed by tremendous heat, great pressure, and chemical reactions. To change it into another type of metamorphic rock you have to reheat it and bury it deeper again beneath the Earth's surface.

Hope this helped! :)

what magnetically happens when there is an electric current in a wire?​

Answers

Answer:

you change the direction of the magnetic field.

Explanation:

Because the magnetic field created by the electric current in the wire is changing directions around the wire, it will repel both poles of the magnet by bending away from the wire.

The correct answer is: when a current flows in a wire a magnetic field is set up around the wire. The field is circular without poles. If the current in heading away from you the magnetic field is clockwise and if the current is coming towards you the field is anti-clockwise. If the current is constant the strength of the magnetic field is also constant.

Thermal energy is the energy
an object has due to the
of the
particles.

Answers

Answer:

due to the heating of particles

A car moves at the constant speed of 20 m/s along a straight track for 12 seconds. Calculate how far it travels in meters in this time.

Answers

The distance traveled by car with a constant speed of 20m/s is equal to 240m.

What is speed?

The speed of an object can be defined as the distance traveled by the object in a definite time interval. The speed is a scalar quantity as it carries only the magnitude and does not have any direction.

The speed can be calculated from the ratio of the distance traveled by the object to the time taken to cover that distance.

The speed equation for an object can be written as follows:

Speed = distance /time taken

Distance = Speed × time

Given, the speed of the car = 20 m/s

The total time taken by car to travel the distance = 12 sec

The distance traveled by car = 20 × 12 = 240 m.

Therefore, the car will travel a distance of 240 meters in a given time.

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1) A football player kicks a ball at an angle of 30 and gives it a velocity of 15m/s.
A) What was the time of flight?
B) How far horizontally does the ball land?
C) How high does the ball reach?

Answers

Answer:

A) 1.53s

B) 19.8m

C) 2.869m

Explanation:

A) The time of flight for a projectile can be calculated using the formula:

t = 2μsinθ/g

Where; u = velocity

θ = angle

g = acceleration due to gravity (9.8m/s^2)

t = 2 × 15 × sin 30°/9.8

t = 30sin30°/9.8

t = 30 × 0.5/9.8

t = 15/9.8

t = 1.53s

B) The horizontal range (distance) for a projectile can be calculated using the formula:

Range = u²sin2θ/ g

Range = 15² sin 2 × 30 / 9.8

Range = 225 sin 60/9.8

Range = 225 × 0.8660/9.8

Range = 194.855/9.8

Range = 19.8m

C) The maximum height for a projectile can be calculated using the formula:

h = u²sin²θ/2g

h = 15² (sin 30)² / 2 × 9.8

h = 225 × 0.25 / 19.6

h = 56.25/19.6

h = 2.869m

A car goes from rest to 25 m/s in 10 seconds. Determind the acceleration of the car.

Answers

Answer:

2.5m/s^2

Explanation:

a=velocity/time

a=25m/s/10s

a=2.5m/s^2

how can we calculate the e.m.f of the battery?.

Answers

Explanation:

The emf is equal to the work done on the charge per unit charge (ϵ=dWdq) when there is no current flowing. Since the unit for work is the joule and the unit for charge is the coulomb, the unit for emf is the volt (1V=1J/C).

Answer:

The EMF or electromotive force is the energy supplied by a battery or a cell per coulomb (Q) of charge passing through it. The magnitude of emf is equal to V (potential difference) across the cell terminals when there is no current flowing through the circuit. (byjus)

Explanation:

None of these are examples of projectile motion except: (Click all that
Apply)
A) Shooting a Basketball
B) Throwing a Baseball
C) Shooting a Cannon
D) Shooting a Gun
E) Writing a Pencil
F) Rolling a Bowling Ball

Answers

Writing with a pencil

Salmon often jump waterfalls to reach their
breeding grounds.
Starting downstream, 2.08 m away from a
waterfall 0.63 m in height, at what minimum
speed must a salmon jumping at an angle of
44 ◦
leave the water to continue upstream?
The acceleration due to gravity is 9.81 m/s
2
.
Answer in units of m/

Answers

Answer:

5.45 m/s

Explanation:

Given:

Δx = 2.08 m

v₀ₓ = v₀ cos 44°

aₓ = 0 m/s²

Δx = v₀ₓ t + ½ aₓ t²

2.08 m = (v₀ cos 44°) t + ½ (0 m/s²) t²

2.89 = v₀ t

Given:

Δy = 0.63 m

v₀ᵧ = v₀ sin 44°

aᵧ = -9.81 m/s²

Δy = v₀ᵧ t + ½ aᵧ t²

0.63 m = (v₀ sin 44°) t + ½ (-9.81 m/s²) t²

0.63 = 0.695 v₀ t − 4.905 t²

0.63 = 0.695 (2.89) − 4.905 t²

t = 0.530

v₀ = 5.45 m/s

Which of the statements about the nitrogen cycle is not true? Animals get nitrogen by eating plants or other animals Animals get nitrogen by eating plants or other animals Decomposers break down waste to yield ammonium Decomposers break down waste to yield ammonium Nitrogen moves back and forth between the atmosphere and living things Nitrogen moves back and forth between the atmosphere and living things All plants generate nitrogen in their roots

Answers

Answer:

decomposers break down waste to yield ammonia.

Explanation:

The nitrogen cycle is the process by which nitrogen circulates among the atmosphere, terrestrial, and marine ecosystems and is converted into multiple chemical forms through both biological and physical processes.

In the nitrogen cycle, decomposers do not break down waste to yield ammonia.

So, the option ''decomposers break down waste to yield ammonia'' is correct.

A reader's
read
is the extent to which he or she is engaged with or focused on what is being
activity level
background knowledge
purpose
text
I DONT KNOW WHAT THESE SUBJECT IS IN BUT IF U SEE THIS PLS HELP ME PLSSSSS!!!!!

Answers

Answer:

activity level

Explanation:

Engineers tasked with building a car bumper need high-quality plastic that is readily available. They found the material polycarbonate, which is long-lasting and not too costly.
Which is on technological design criterion they have already met?
1) be available
2)be attractive
3)be durable
4)be safe

Answers

Answer:

3) Be durable

Explanation:

It says that ¨ They found the material polycarbonate, which is long-lasting and not too costly.

can you tell Which body part does not help in the perception and production of sound in humans?
ears, lungs, mouth or vocal cords
which is not?

Answers

your lungs aren’t the ones that make the sound

Lungs do not help in the perception and production of sound in humans.

What are lungs?

Gaseous exchange occurs during inhalation and exhale during breathing. Main components of the human respiratory system include the nose, mouth, throat, larynx, trachea, bronchi, and lungs.

In humans and other vertebrates, the primary organs for respiration are the lungs. They are situated in the thoracic cavity of the chest, on either side of the heart. The lungs are spongy, anatomically speaking, with a total surface area that ranges from 50 to 75 square meters.

The lungs' main job is to make it easier for gases to move from the blood into the air. It's interesting to note that the right lung is significantly larger and heavier than the left.

Hence, lungs do not help in the perception and production of sound in humans.

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A race car accelerates from 0 m/s to 30.0 m/s in 5 seconds. What is the vehicle's acceleration?

Answers

Answer:

Acceleration = 6 m/s²

Explanation:

Given:

Initial velocity u = 0 m/s

Final velocity v = 30 m/s

Time taken t = 5 second

Find:

Acceleration

Computation:

v = u + at

30 = 0 + (a)(5)

30 = 5a

Acceleration = 30 / 5

Acceleration = 6 m/s²

A wire is placed within a magnetic field, and a current starts to flow through
the wire. Which statement about the magnetic field must be true?
O A. The field is produced by permanent magnets,
O B. The field is moving
C. The field is produced by induced magnetism.
OD. The field is not moving
PLEASE PLEASE HELP QUICK

Answers

The field must be moving to produce a current in a stationary wire.

Answer:

B. The field is moving

Which of the following is most likely to happen when energy is transferred to
an object?
A. The object will stay exactly the same.
B. The force on the object will decrease.
o
C. The object will begin to move.
D. The mass of the object will increase.
AUTEM

Answers

Answer:The object will begin to move

Explanation:

PLEASE HURRY! :) TEN PTS + BRAINLIEST TO FIRST BEST ANSWER!


When Object 1 came into contact with Object 2, Object 2 got warmer. What can be concluded about the objects before they came into contact with each other?


Object 2 did not have thermal energy.

Object 1 had faster-moving particles.

Object 1 had less thermal energy.

Object 2 had fewer particles.

Answers

Answer:

object 1 had faster-moving particles.

Before the two objects came into contact with each other, object 1 had faster-moving particles.

What is thermal energy?

The thermal energy of an object is the energy possessed by the object due to temperature difference.

The thermal energy of an object increases with increase in kinetic energy of the object. The kinetic energy of the object increases with increase in speed of the object.

Thus, we can conclude that before the two objects came into contact with each other, object 1 had faster-moving particles.

Learn more about thermal energy here: https://brainly.com/question/7541718

which technological advance has helped scientists to search for life in other star systems?

Answers

Answer:

Scientists are developing techniques to detect signatures from space in their search for alien life.

The Very Large Array (VLA) telescope, at the National Radio Astronomy Observatory (NARO) site in Socorro, New Mexico, will be used to constantly seek evidence of technosignatures.

Hope this helps


What is the acceleration of a car making a turn in a circle with a 100m radius traveling at
17m/s?

Answers

Answer:

2.89 m/s²

Explanation:

From the question given above, the following data were obtained:

Radius (r) = 100 m

Velocity (v) = 17 m/s

Acceleration (a) =.?

The acceleration of a circular motion is defined by:

a = v²/r

Where:

a is the acceleration.

v is the velocity.

r is the radius.

With the above formula, we can obtain the acceleration of the car as follow:

Radius (r) = 100 m

Velocity (v) = 17 m/s

Acceleration (a) =.?

a = v²/r

a = 17²/ 100

a = 289/100

a = 2.89 m/s²

Therefore, the acceleration of the car is 2.89 m/s²

In a 350-m race, runner A starts from rest and accelerates at 1.6 m/s^2 for the first 30 m and then runs at constant speed. Runner B starts from rest and accelerates at 2.0 m/s^2 for the first 30 m and then runs at constant speed. Runner A befins running as soon as the race begins but B first takes a nap to rest up. What is the longest nap that B can take and still not lose the race?

Answers

Answer:

B can take 0.64 sec for the longest nap .

Explanation:

Given that,

Total distance = 350 m

Acceleration of A = 1.6 m/s²

Distance = 30 m

Acceleration of B = 2.0 m/s²

We need to calculate the time for A

Using equation of motion

[tex]s=ut+\dfrac{1}{2}at_{A}^2[/tex]

Put the value in the equation

[tex]30=0+\dfrac{1}{2}\times1.6\times t_{A}^2[/tex]

[tex]t_{A}=\sqrt{\dfrac{30\times2}{1.6}}[/tex]

[tex]t_{A}=6.12\ sec[/tex]

We need to calculate the time for B

Using equation of motion

[tex]s=ut+\dfrac{1}{2}at_{B}^2[/tex]

Put the value in the equation

[tex]30=0+\dfrac{1}{2}\times2.0\times t_{B}^2[/tex]

[tex]t_{B}=\sqrt{\dfrac{30\times2}{2.0}}[/tex]

[tex]t_{B}=5.48\ sec[/tex]

We need to calculate the time for longest nap

Using formula for difference of time

[tex]t'=t_{A}-t_{B}[/tex]

[tex]t'=6.12-5.48[/tex]

[tex]t'=0.64\ s[/tex]

Hence, B can take 0.64 sec for the longest nap .

Why is a skeptical attitude important in science?
A. It allows scientists to challenge inaccurate information.
B. It allows scientists to accept all information as true.
C. It ensures that scientists write short articles.
D. It highlights the good features of an experiment.
E. It provokes other scientists.

Answers

The answer is
A. It allows scientists to challenge inaccurate information

Answer:

A: It allows scientists to challenge inaccurate information.

Explanation:

SOMEONE PLEASEEEE HELPP

Answers

Answer:

0.161

Explanation:

N = mg

= 8.2(9.81)

= 80.442 N

Melissa is riding on a carousel at a distance of 8.0 m from the center of the ride. She travels at a speed of 1.3 m/s. Melissa has a mass of 45 kg.
A) What is Melissa’s acceleration?
B) What is the net force on Melissa?

Answers

Answer:

(A) The acceleration of Melissa is 0.211 m/s²

(B) The net force on Melissa is 9.5 N

Explanation:

Given;

radius of the carousel, r = 8.0 m

speed of Melissa, v = 1.3 m/s

mass of Melissa, m = 45 kg

(A) The acceleration of Melissa is given by centripetal acceleration;

[tex]a_c = \frac{v^2}{r} \\\\a_c = \frac{1.3^2}{8}\\\\a_c = 0.211 \ m/s^2[/tex]

(B) The net Force on Melissa is given by centripetal force;

[tex]F_c = ma_c\\\\F_c = 45 *0.211\\\\F_c = 9.5 \ N[/tex]

The speed of
a bus rs 72km/hr. Convert it into
si system dimensionally

Answers

Answer:

Speed = 20 m/s

Explanation:

The speed of a bus is 72 km/h

The SI unit of speed is m/s

We need to convert it into m/s

We know that,

1 km = 1000 m

1 h = 3600 s

It means,

[tex]s=72\ \dfrac{km}{h}\\\\=\dfrac{72\times 1000\ m}{3600\ s}\\\\=20\ m/s[/tex]

So, the speed of the bus is 20 m/s.

What is the relationship between Mass and Force when Speed is constant?

Answers

Answer:Newton's second law of motion states that acceleration is directly proportional to net force when mass is constant and that acceleration is inversely proportional to mass.

Explanation: the net force is directly proportional to mass when acceleration is constant.

What is the maximum power load on a circuit with wiring rated to 20 amps having a voltage of E=12 Volts?

Answers

P= IxE

20 amps times 12 volts equals 240 watts

Example: 5 48 watt light bulbs hooked to a 12 volt battery. Batteries hooked in parallel will increase amp/hour capacity but voltage stays at 12 volts.

1. What happens to particle spacing when temperature increase, What we call this process?

Answers

Answer:

Particle spacing increases and it's called evaporating

what is called gravity ​

Answers

Gravity is also called gravitation

The kinetic energy of an object depends upon its _____ *
2 points
A. mass and resiliency
B. elasticity and weight
C. speed and mass
D. speed and distance

Answers

the kinetic energy of an object depends upon its- C. speed and mass

what are the bonds between carbon atoms in diamond?

Answers

They are bonded by iconic bond, Coordinate bond, hydrogen bonds, and Convalent bonds,
Other Questions
Exercise 5-8 Equivalent Units; Cost per Equivalent Unit; Assigning Costs to Units-Weighted-Average Method [LO5-2, LO5-3, LO5-4] Helix Corporation uses the weighted-average method in its process costing system. It produces prefabricated flooring in a series of steps carried out in production departments. All of the material that is used in the first production department is added at the beginning of processing in that department. Data for May for the first production department follow: Percent Complete Units Materials Conversion Work in process inventory, May 1 70,000 100 % 40 % Work in process inventory, May 31 50,000 100 % 25 % Materials cost in work in process inventory, May 1 $ 56,100 Conversion cost in work in process inventory, May 1 $ 16,400 Units started into production 255,000 Units transferred to the next production department 275,000 Materials cost added during May $ 112,900 Conversion cost added during May $ 236,600 Required: 1. Calculate the first production department's equivalent units of production for materials and conversion for May. 2. Compute the first production department's cost per equivalent unit for materials and conversion for May. 3. Compute the first production department's cost of ending work in process inventory for materials, conversion, and in total for May. 4. Compute the first production department's cost of the units transferred to the next production department for materials, conversion, and in total for May. What three habits will improve your life? THX FOR READING GOD BLESS YOUUUUUU help cant get this one trough my thick skull Who was more likely to agree with a silver standard?Industrialists in the northFarmers in the southFactory workersGold miners in Alaska 1. The quotient of twice a number and 7 is 20. A local park is in the shape of a square. A map of the local park is made with the scale 1 inch to 200 feet.If each side of the park on the map is 12 inches long, how long is each side of the actual square park? The narrator of this passage claims that he isn't going to tell his whole autobiography," but then proceedsto tell about himself anyway, what literary device is this?A. symbolismB. allusionC. ironyD. metaphor How were the Egyptians and the Kus-hites similar? True or False? Toxins accumulate in the tissue of organisms Write a part to the whole analogy that compares two types of transportation. Then, rewrite the analogy so that it shows a whole to the part relationship. Can someone help me I am confused What would happen to an ecosystem if the biomass of primary consumers was higher than the biomass of producers? need asap please help i will mark brainliest what are decimal that repeat the same pattern If you have ever baked a cake or bread, you know that the ingredients that combine to make it taste different from the baked food. Why do you think that is? A 52 N sled is pulled across a cement sidewalk at constant speed. A horizontal force of 36 N is exerted. What is the coefficient of sliding friction between the sidewalk and the metal runners of the sled? Can you count how many atoms there are in the following compounds? What is the approximate mass of one proton?__amu; and the approx. mass of a neutron?___amu Which of the following is NOT considered rude in Deaf culture?touching another person's hands to stop themwalking through an ASL conversationtapping on the shoulder of a person when trying to get their attentionwatching other people's conversations Select all that apply.Which of the following is true of an outlier?An outlier is always the highest or lowest value in a data set.An outlier is a false data point.An outlier is not near the main cluster of data.An outlier does not affect measures of central tendency.