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Alisiya [41]
2 years ago
5

How much time does it take for a car traveling at 65 miles/hour to travel 300 miles

Physics
1 answer:
galina1969 [7]2 years ago
5 0

Time taken by the car to travel 300 miles is 4.615 hours.

<h3>What is speed?</h3>

The speed of any moving object is the ratio of the distance traveled and the time taken to cover that distance.

Given is the distance d = 300 miles and the speed s = 65 miles/hour, then the time taken t will be

s=d/t

65 = 300/t

t= 4.615 hours

Thus, time taken by the car to travel 300 miles is 4.615 hours.

Learn more about speed.

brainly.com/question/7359669

#SPJ4

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Pls help asap - flvs btw
KiRa [710]

Hydroelectric power is generated from moving water is true.

Option A.

<h3><u>Explanation:</u></h3>

Hydroelectric power is the type of renewable source of energy which is obtained from turning a turbine through a running source of water like river or waterfall and producing the electrical energy from it. Running source of water is a must need for a hydroelectric power.

Oil or gasolene is actually petroleum which is mined from under the earth surface which is then burnt to obtain energy. Its used to produce jet fuel, but isn't a renewable source of energy.

Propane is also a byproduct of gasolene which is non renewable source of energy.

Geothermal energy is renewable source of energy, but it doesn't require a solar cell to produce the power.

6 0
3 years ago
What is characteristic of an opaque object.
stiks02 [169]

Answer:

allows no light to pass

Explanation:

5 0
3 years ago
Read 2 more answers
Strength training increases which of the following Question 1 options:
pav-90 [236]

Answer:

i think it is D

Explanation:

7 0
3 years ago
Read 2 more answers
Alex is asked to move two boxes of books in contact with each other and resting on a frictionless floor. He decides to move them
Anit [1.1K]

Answer:

2.8 N

Explanation:

Fp = 7.7 N

mA = 12.1 kg

mB = 7 kg

Let a be the acceleration and Fc be the contact force between A and B.

By the free body diagram, use Newton's second law

Fp - Fc = mA x a ..... (1)

Fc = mB x a ..... (2)

Adding both the equations

Fp = (mA + mB) x a

7.7 = (12.1 + 7) x a

a = 0.4 m/s^2

Substitute this value in equation (2), we get

Fc = 7 x 0.4 = 2.8 N

Thus, the contact force between the two blocks is 2.8 N.

Explanation:

3 0
3 years ago
Runaway truck ramps are common on mountainous highways in case the brakes fail on large trucks. If a
dusya [7]

Answer:

W=-21,870,000\ J

Explanation:

<u>Work and Kinetic Energy </u>

The work an object does due to its motion is equal to the change of its kinetic energy. Being ko and k1 the initial and final kinetic energy respectively and m the mass of the object, then

W=\Delta k=k_1-k_0

Since

\displaystyle k=\frac{mv^2}{2}

We have

\displaystyle W=\frac{mv_1^2}{2}-\frac{mv_0^2}{2}

The truck has a mass of 60,000 kg and is moving at 27 m/s. The runaway truck ramp must stop the truck, so the final speed is 0. Thus

\displaystyle W=\frac{(60,000)0^2}{2}-\frac{(60,000)(27)^2}{2}

W=0-21870000\ J

\boxed{W=-21,870,000\ J}

3 0
3 years ago
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