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Simora [160]
3 years ago
10

Which of the following statements describe the transfer of energy?

Physics
1 answer:
Lady_Fox [76]3 years ago
7 0

The answer should be A weighlifter lifting 100lb. bell bar from his chest to a certain height.

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The volume of an object as a function of time is V(t) = At³, where A is a constant. Let L and T denote dimensions of length and
Greeley [361]

Answer:

c) L³/T³

Explanation:

If t stands for time, the units are:

(V) = L³, (t) = T

The units for the equation:

V(t) = At³

must be:

L^{3} = \frac{L^{3} }{T^{3}} T^{3}

7 0
3 years ago
Joey is riding in an elevator which is accelerating upwards at 2.0 m/s2. The elevator weighs 300.0 kg, and Joey weighs 60.0 kg.
vodka [1.7K]

4200 N  is the tension in the cable that pulls the elevator upwards.

The correct option is A.

<h3>What does tension ?</h3>

Tension is the force that is sent through a rope, thread, or wire whenever two opposing forces pull on it. Along the whole length of the wire, the tensile stress pulls equally on all objects at the ends. Every physical object that comes into contact with that other one exerts force on it.

<h3>Briefing:</h3>

We employ the following formula to determine the cable's tension.

Formula:

T = mg+ma............ Equation 1

Where:

T is the cable's tension.

M = Mass of the elevator and the Joey

Accelerating with a

g = Gravitational acceleration

Considering the query,

Given:

m = (300+60) = 360 kg

a = 2 m/s²

g = 9.8 m/s²

Substitute these values into equation 2

T = (360×9.8)+(360×2)

T = 3528+720

T = 4248 N

T ≈ 4200 to the nearest hundred.

To know more about Tension visit:

brainly.com/question/14177858

#SPJ1

7 0
1 year ago
In the heat equation, what does c represent
Bingel [31]
Heat equation, Q = m.c.Δt
Here, c represents " the specific heat of the substance "

Hope this helps!
5 0
3 years ago
Read 2 more answers
A person is running at 2 m/s and 20 s later is running at 22 m/s. What is
AysviL [449]
I think it’s 1 m/s^2
8 0
3 years ago
9. In a closed circuit made of a battery, a wire, a lightbulb, and a switch which part's main responsibility is allowing electri
Zielflug [23.3K]

Answer:

d

Explanation:

6 0
3 years ago
Read 2 more answers
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