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Sloan [31]
3 years ago
14

5. How does a jack make changing a tire easier?

Physics
1 answer:
strojnjashka [21]3 years ago
4 0

Answer: An jack makes changing a tire easier because it lifts up the car to get the tire off of the ground.

Explanation:

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NEED HELP NOW DUE TODAY Which of these statements is most likely correct about Newton's law on gravity? (2 points)
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_______________________a
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3 years ago
Two ships of equal mass are 110 m apart. What is the acceleration of either ship due to the gravitational attraction of the othe
dusya [7]

Answer:

Acceleration of the ship, a=2.14\times 10^{-7}\ m/s^2

Explanation:

It is given that,

Mass of both ships, m=39000\ metric\ tons=39\times 10^6\ kg

Distance between two ships, d = 110 m

The gravitational force between two ships is given by :

F=G\dfrac{m^2}{d^2}

F=6.67\times 10^{-11}\ Nm^2/kg^2\times \dfrac{(39\times 10^6\ kg)^2}{(110\ m)^2}

F = 8.38 N

Let a is the acceleration. Now, using second law of motion as :

a=\dfrac{F}{m}

a=\dfrac{8.38\ N}{39\times 10^6\ kg}

a=2.14\times 10^{-7}\ m/s^2

So, the acceleration of either ship due to the gravitational attraction of the other is 2.14\times 10^{-7}\ m/s^2. Hence, this is the required solution.

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3 years ago
An elephant kicks a 2.5 kg rock that is initially at rest. The
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0.20Answer:

Explanation:

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Induced EMF and Current in a Shrinking LoopShrinking Loop. A circular loop of flexible iron wire has an initial circumference of
vodomira [7]

Answer:

Explanation:

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at t = 8 s

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e = dψ/dt = (1 / 2π )x 57 x 13 x 10⁻⁴ = 118 x 10⁻⁴ V.

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If a light ray from a candle strikes a mirror at an angle of 40° with the normal, at what angle will the ray reflect?
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Answer:

the correct answer is b: 25

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2 years ago
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