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AlexFokin [52]
3 years ago
8

The amount of kinetic energy an object has depends on its.

Physics
2 answers:
STALIN [3.7K]3 years ago
8 0

Answer:

motion

Explanation:

took the the test

dalvyx [7]3 years ago
5 0
<span>The amount of kinetic energy an object has
depends on its mass and speed.</span>
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If you carry out an experiment measuring the weight and mass of objects in one particular location on the earth, what relation w
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<span>Weight is directly proportional to mass.</span>
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3 years ago
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3. What exerts a greater force on the table of 2 kg book lying flat or a 2 kg book on its
Darina [25.2K]

Answer:

A book on its side exerts a greater force.

Explanation:

Pressure = Force / Area

Assuming that 1kg = 10N

2kg = 20N

Area of book lying flat = 0.3m × 0.2m

                                     = 0.6m²

Pressure of book lying flat = 20N / 0.6m²

                                            = 30Pa (1 s.f.)

Area of book on its side = 0.2m × 0.05m

                                        = 0.01m²

Pressure of book on its side = 20N / 0.01m²

                                               = 2000Pa (1 s.f.)

Since 2000Pa (1 s.f.) > 30Pa (1 s.f.), a book on its side applies greater pressure than lying flat.

5 0
2 years ago
On a balanced seesaw, a boy three times as heavy as his partner sits
slega [8]

Answer:

1/3 the distance from the fulcrum

Explanation:

On a balanced seesaw, the torques around the fulcrum calculated on one side and on another side must be equal. This means that:

W_1 d_1 = W_2 d_2

where

W1 is the weight of the boy

d1 is its distance from the fulcrum

W2 is the weight of his partner

d2 is the distance of the partner from the fulcrum

In this problem, we know that the boy is three times as heavy as his partner, so

W_1 = 3 W_2

If we substitute this into the equation, we find:

(3 W_2) d_1 = W_2 d_2

and by simplifying:

3 d_1 = d_2\\d_1 = \frac{1}{3}d_2

which means that the boy sits at 1/3 the distance from the fulcrum.

8 0
3 years ago
One timing problem in using fiscal policy to counter a recession is the "legislative lag" that occurs between the
natta225 [31]

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4 0
3 years ago
3. What do we call the ONLY part of the electromagnetic spectrum that we can
otez555 [7]

Answer:

Visible Light

wavelength = 4000 - 7000 Angstroms = 400 - 700 milli-microns

1 A unit =  10^-10 m

1 mμ = 10^-9 m

6 0
2 years ago
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