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iogann1982 [59]
3 years ago
8

Which of Newton's laws accounts for the following statement? "A force cannot act alone."

Physics
2 answers:
juin [17]3 years ago
8 0
<span>"A force is required to cause motion to deviate from a straight line.</span>
podryga [215]3 years ago
4 0

its force!!!!! i hope this help you out

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Yes, It has a stored energy in that stone.
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Energy

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What is the highest and lowest frequency a human being can hear​
nata0808 [166]

Every person is different.  But for a planet-wide overall average that roughly represents all human beings on Earth, the figures usually used are:

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A rocket passing the earth with high speed will look shorter for the stationary observer measuring the size on earth than travel
neonofarm [45]

Answer:

True

Explanation:

This can be explained by the special theory of relativity for length contraction.

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5 0
3 years ago
Suppose that in a lightning flash the potential difference between a cloud and the ground is 1.3×109 V and the quantity of charg
Georgia [21]

Answer:

A) ΔU = 3.9 × 10^(10) J

B) v = 8420.75 m/s

Explanation:

We are given;

Potential Difference; V = 1.3 × 10^(9) V

Charge; Q = 30 C

A) Formula for change in energy of transferred charge is given as;

ΔU = QV

Plugging in the relevant values gives;

ΔU = 30 × 1.3 × 10^(9)

ΔU = 3.9 × 10^(10) J

B) We are told that this energy gotten above is used to accelerate a 1100 kg car from rest.

This means that the initial potential energy will be equal to the final kinetic energy since all the potential energy will be converted to kinetic energy.

Thus;

P.E = K.E

ΔU = ½mv²

Where v is final velocity.

Plugging in the relevant values;

3.9 × 10^(10) = ½ × 1100 × v²

v² = [7.8 × 10^(8)]/11

v² = 70909090.9090909

v = √70909090.9090909

v = 8420.75 m/s

4 0
3 years ago
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