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3 years ago

If the mass of a moving object were quartered, it’s inertia would be

Physics

1 answer:

AVprozaik [17]3 years ago

8 0

Answer:

Quartered

Explanation:

Because you're a liberal.

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What three variable factors determine the force of gravity between any two objects?

brilliants [131]

The force of gravity between two objects is:
F = G*m1*m2/r^2

So, it is dependent of the two masses and the distance between their centers of mass.

5 0

3 years ago

You open the refrigerator in your room and put in a case of room-temperature root beer. After an hour, the root beer is ice cold

agasfer [191]

Answer:

warmer

Explanation:

The law of conservation of energy tells us that energy cannot be created or destroyed, it can be transferred or converted from one from to another. In this question when the beer that is at room temperature is put in the fridge, it loses some heat energy. This heat energy is not destroyed, the fridge through multiple processes eventually releases this heat to the room through pipes at the back which is why they are normally warm. the heat from the food inside is expelled to the room. It is not lost.

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3 years ago

a tractor pulls a wagon from rest with a constant force of 700 N eventually giving the wagon a speed of 20 km/h. how much work i

Semenov [28]

Work = Force × distance

We need to calculate distance travelled.

20km/hr = 20,000m / 60min → 333.3m/ min

333.3 × 3.5 min = 1,166.6 meters travelled

Force = 700 N and distance = 1,166.6 m

Work done is 700 N × 1,666.6 = 816,620 Nm

Power output = work /time

Power output is 816, 620 Nm / (3.5 × 60sec) →816, 620 / 210 = 3,888.7

Power output is 3,888.7 Watts.

Power output can also be expressed in joules per second so it is also correct to say work done is 3,888.7 J/s

5 0

3 years ago

Newton's law of universal gravitation, the law of conservation of mass, the law of superposition, and the laws of thermodynamics

Llana [10]

Answer:

Explanation:

There are no exceptions to these laws under specific stated conditions..

The laws of science are statements that describe or predict a range of phenomena as they appear in nature. Laws explain facts determined by experiment. Laws do not have absolute certainty and be changed by future experiments and observations.

5 0

3 years ago

Heather and Jerry are standing on a bridge 51 m above a river. Heather throws a rock straight down with a speed of 17 m/s . Jerr

Step2247 [10]

Jerry throws his rock up at 20 m/s. It will decelerate at the rate of 9.8 m/s^2, until it's velocity reaches zero. At that time it will reach apogee, and begin falling. So (20 m/s)/(9.8m/s^2) =2.04 seconds To reach max height.

<span>After 2.04 seconds it will begin accelerating downward, again by 9.8m/s^2. So after another 2.04 seconds, it will be at the starting point, traveling at 20 m/s. It will then follow the same time path as Heather's rock. </span>

<span>So Jerry's rock will take 4.08 seconds longer than Heather's to hit the water. The height above the water is not necessary information for this problem.</span>

3 0

3 years ago

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