What is the best inference for the height of the plant after 35 hours?

Answer:

D. a balance, water, and a beaker

Hope this helps!

Answer:

Explanation:

D. a balance, water, and a beaker

Answer:

1) 10 m/s  2) 14.1 m/s  3) 6.7 m  4) 11.25 m  5) 4.5 m/s  6) 12 joules

Explanation:

Answer:

2Ca+ O2 ------> 2CaO

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Answer:

The energy transferred to the gas is 9 mJ

Explanation:

Given;

initial volume of the gas, v₁ = 5 x 10⁻⁵ m³

final volume of the gas, v₂ = 4.7 x 10⁻⁵ m³

initial pressure of the gas, P₁ = 5.4 x 10⁴ Pa

final pressure of the gas, P₂ = 5.7 x 10⁴ Pa

The work done in compressing the gas is given by;

W = ΔPV = (P₂ - P₁)(V₂ - V₁)

W = (5.7 x 10⁴ Pa - 5.4 x 10⁴ Pa)(4.7 x 10⁻⁵ m³ - 5 x 10⁻⁵ m³)

W = (3000)( -3 x 10⁻⁶)

W = - 9  x 10⁻³ J

W = -9 mJ

Thus, the work done in compressing this gas is equal to the energy transferred to the gas = 9 mJ

Answer:

Because all machines lose input work to friction, one way to improve the efficiency of a machine is by reducing friction.    Hope this helped :))

Explanation:

Colors so bright

They catch your eye

You can see them from miles away

They shine in the night

Such beauty from dye

Oh so many ways they can array

litterly just got this off the top of my head. it was fun making.

Answer: Yes, on many slate-roofed homes as temperatures change, such as cooling at night or heating during the day, thermal expansion or contraction of the slates may cause movement that in turn causes snapping, popping, or cracking noises, even bangs and clanks or clicks from the roof.

Explanation:

Answer:

because of its mealting

Explanation:

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Answer:

(1).  This motion is projectile motion.

(2). The horizontal initial velocity is 19.3 m/s.

The vertical initial velocity is 22.9 m/s.

(3). The time is 3.9 sec.

(4). The range of the ball assuming the ground is flat and horizontal is 90.4 m.

Explanation:

Given that,

Angle = 40°

Velocity = 30 m/s

(1). A soccer ball is kicked at an angle from the ground at a speed of 30 m/s.

So, this motion will be projectile motion.

(2). We need to calculate the vertical and horizontal components of the initial velocity of the ball

Using formula of  vertical initial velocity

[tex]u_{y}=u\cos\theta[/tex]

Put the value into the formula

[tex]u_{y}=30\cos40[/tex]

[tex]u_{y}=22.9\ m/s[/tex]

Horizontal initial velocity ,

[tex]u_{x}=u\sin\theta[/tex]

Put the value into the formula

[tex]u_{x}=30\sin40[/tex]

[tex]u_{x}=19.3\ m/s[/tex]

(3). We need to calculate the time

Using formula of time

[tex]t=\dfrac{2u\sin\theta}{g}[/tex]

Put the value into the formula

[tex]t=\dfrac{2\times19.3}{9.8}[/tex]

[tex]t=3.9\ sec[/tex]

(4). We need to calculate the range of the ball assuming the ground is flat and horizontal

Using formula of range

[tex]R=\dfrac{v^2\sin2\theta}{g}[/tex]

Put the value into the formula

[tex]R=\dfrac{30^2\sin80}{9.8}[/tex]

[tex]R=90.4\ m[/tex]

Hence, (1).  This motion is projectile motion.

(2). The horizontal initial velocity is 19.3 m/s.

The vertical initial velocity is 22.9 m/s.

(3). The time is 3.9 sec.

(4). The range of the ball assuming the ground is flat and horizontal is 90.4 m.

lighting discharge, b: stay away from tall things, and stay away from any items that conduct electricity

Answer:

MOMENTUM= FORCE*MASS

= 140*5

= 700 kg⋅m/s

Answer:

when completing a science experiment it is important to run multiple tests do as to reduce the risk of any outliers of false results

The purpose of this process is to reduce the risk of having outliers of false results

Although the experiment you are referring to in your question is missing the general principle when conducting an experiment is the running of multiple tests before coming up with an actual test result.

Therefore when completing a science experiment it is important to run multiple tests like heating the substance several times until a constant mass value is obtained,  in other to ascertain the results. the reason why such process is undertaken is to  reduce the risk of having outliers of false results.   Also

A scientific experiment involves several procedures and this depends on the type and purpose of the experiment.

for example: An experiment with the purpose of determining how the mass of an object reacts to heat will require the mass of the object to be recorded  after heating the object/substance several times.

Hence we can conclude that the purpose of the process is to reduce the risk of having outliers of false results.

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The value of resistance will be 60 ohms. Resistance is the opposition force offered to the flow of electric current. The ratio of the voltage to the electric current passing through the wire.

A resistor is a two-terminal passive electrical component that acts as a circuit element by implementing electrical resistance.

Resistors are used to limit current flow, alter signal levels, divide voltages, bias active devices, and complete transmission lines in electronic circuits.

The given data in the problem is;

V is the voltage =  3. 0 V

I is value of electric current=  0. 05 A

R is the resistance=?

According to ohm's law, the potential difference between the two ends of the conductor is equal to the product of electric current and the resistance generated.

So from the ohm law;

V= IR

[tex]\rm R = \frac{V}{I} \\\\ \rm R = \frac{3}{0.05} \\\\ \rm R =60 \ ohm[/tex]

Hence the value of resistance will be 60 ohms.

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Answer:

habitat destruction I think so

Answer:

When energy is added to a wave How can the wave change? The energy transported by a wave is directly proportional to the square of the amplitude. So whatever change occurs in the amplitude, the square of that effect impacts the energy.

Explanation:

Answer:

Small asteroids

Explanation:

Mars has 2 moons, Phobos and Deimos, that each have characteristics similar to small asteroids.

Answer:

magnitude and direction

[tex]\longrightarrow \textsf{D. A bicycle sitting on the ground} [/tex]

Let us check all options -

Answer:

biological: they can affect our train of thought and how we do or react to things. (Biological factors that influence human behavior can consist of our drive to be warm, fed, sheltered, have companionship (with some humans having stronger biological drives to reproduce), and be free from harm and oppression.)

environmental: the environment can influence mood. (The environment can facilitate or discourage interactions among people and the subsequent benefits of social support)

Explanation:

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have an awesome day -TJ

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The amount of work required to lift the object is 1029 J. And the amount of potential energy gained by the object is 1029 J.

Work can be defined as the product of force and distance. The s.i unit of work is Joules (J).

To calculate the amount of work required to lift the object, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

The amount of gravitational potential energy gained by the object is the same s the amount of work required to lift the object

Therefore,

Hence, The amount of work required to lift the object is 1029 J. And the amount of potential energy gained by the object is 1029 J.

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Answer:

I cannot see the choices for no. 10, so I'll answer no. 8 and no. 9.

8. a. keep the Earth from tilting on its axis

9. c. an Earth-centered to a sun-centered model

Explanation:

8. The tilting of the Earth on its axis (23.5 degrees) is greatly related to the weather/seasons in different countries. It also affects the amount of daylight that a specific area receives. Keeping the Earth from tilting on its axis would allow your area to receive the same length of sunlight because not tilting at all leads to fewer number of variations.

9. The Earth was thought to be the center of the universe in accordance to the Ptolemaic system. However, this changed through "Heliocentrism," which states that the "sun" is the center of the solar system.

When light wave is refracted, the wave changes direction.

Refraction of waves refer to the process that result in a change in waves direction as the wave is transmitted from one medium to another. Refraction of wave can be the process of bending of the path of the waves which is caused by a change in speed and wavelength of the waves.

Therefore, When light wave is refracted, the wave changes direction.

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Half circle crescent shape represents the shape of concave mirror which is also known as converging mirror.

A concave mirror which also called converging mirror, has a reflecting surface that goes inward. Concave mirrors are used to focus light so we can conclude that Half circle crescent shape represents the shape of concave mirror  and also known as converging mirror.

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Answer:

the answer is C

Explanation:

just got it right hope this helps! :D

Answer:

Elements that are noble gases are helium, argon, xenon, krypton, neon and radon.

The image of the Douglas fir post is missing, so i have attached it.

Answer:

-0.00025918 mm

Explanation:

We are given the points it passes through as;

(y1, w1) = (0, 4)

(y2, w2) = (2, 12)

Thus, the slope is;

K = (w2 - w1)/(y2 - y1)

K = (12 - 4)/(2 - 0)

K = 8/2

K = 4

Now, substituting one of the points into the slope equation, we have;

w - w1 = k(y - y1)

w - 4 = 4(y - 0)

w = 4y + 4

For us to now find the total force the distributed load applies to the body, we will integrate to give;

W(y) = ∫w•dy

Thus;

W(y) = ∫(4y + 4)dy

W(y) = 2y² + 4y

So, the value of this force which is at y = 2 m will be;

W(2) = 2(2²) + 4(2)

W(2) = 16 KN

Now, at equilibrium, we sum up the forces in the vertical y-direction to give;

W - 20 + F = 0

F = 20 - W

F = 20 - 16

F = 4 KN

If we cut through the body to get a free body diagram and sum forces in y-direction to zero, the displacement of the top of the post A with respect to its bottom B is;

δ_B/A = [(L, 0∫)(W - 20)dy]/AE

Where A is πr²

We are given diameter = 100 mm

So, radius = 100/2 = 50 mm = 0.05 m

Also, from tables the Young's modulus of Douglas fir is 13.1 GPa or 13.1 × 10^(9) Pa

Thus;

δ_B/A = [(2, 0∫)(2y² + 4y - 20)dy]/(π × 0.05² × 13.1 × 10^(9))

δ_B/A = [((2 × 2³/3) + (2 × 2²) - 20(2)) - 0] /(0.102887 × 10^(9))

δ_B/A = (16/3 + 8 - 40)/(0.102887 × 10^(9))

δ_B/A = -0.00000025918 m = -0.00025918 mm

Answer:

true

Explanation:

1. Stance

2. Nock

3. Set Draw Hand

4. Set Bow Hand

5. Pre-Draw

6. Draw

7. Anchor

8. Aim

9. Shot Set Up

10. Release

11. Follow-Through & Reflect

An example of acceleration is someone that's riding a carousel and a skydiver that's in free fall and deceleration is when one presses the brake while driving.

It should be noted that acceleration simply means the rate at which velocity changes with time.

In this case, an example of acceleration is someone that's riding a carousel and a skydiver that's in free fall and deceleration is when one presses the brake while driving. Acceleration can also be the fall of an apple from the tree.

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Answer:

C

Explanation:

vectors are any quantities that have both magnitude and direction

therefore both inertia and weight are both vectors