using kepler's 3rd law and newton's law of universal gravitation, find the period of revolution p of the planet as it moves around the sun. assume that the mass of the planet is much smaller than the mass of the sun.

Answers

Answer 1

Answer: As we all know that Kepler's third law states the square of the period is proportional to the cube of the average distance. Some of the part of the equation are just mere constants, and they are very vital.

After deriving the equation, we can get the formula.

T = sqrt { 4 * PI^2 /(GM) * [(R1 + R2)/2]^3 }

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A bowling ball with a mass of 4.5 kg travels at a velocity of 37 m/s for 2.5 s until it stopped at the end of the lane by the ball return. What additional info is required to determine the weight of the bowling ball?

Answers

None. We already have more than we need ... provided only that the lane is on Earth.

Weight = (mass) (gravity).

On Earth, 'gravity' = 9.8 m/s^2.

Weight of the ball =

(4.5 kg) (9.8 m/s^2).= 44.1 newtons.

(roughly 9.9 pounds)

On June 9, 1983, the lower part of the Variegated Glacier in Alaska was observed to be moving at a rate of 64 m per day. What is this speed in kilometers per hour?

Answers

(64 meter/day) x (1 kilometer / 1,000 meters) x (1 day / 24 hours) =

   (64 x 1 x 1) / (1,000 x 24) (kilometer/hour) =

   1/375 km/hour

    (0.002667 km/hour, rounded)

   2-2/3 meters/hour

   (8-ft 9-inches) per hour

What are different type of plastids explain them?

Answers

Answer:

types of plastids

chloroplasts

chromoplasts

gerontoplasts

leucoplasts

Explanation:

ans

Potassium hydroxide (KOH) and hydrochloric acid (HCl) react in a beaker. They form potassium chloride (KCl) and water (H2O). What type of reaction is this?

Answers

Potassium hydroxide (KOH) and hydrochloric acid (HCl) react in a beaker. They form potassium chloride (KCl) and water (H2O). This type of reaction is a double replacement reaction wherein the two principal reactants exchange after the reaction. The Cl will combine to the K forming KCl and the H will add to the OH forming H2O.

Answer:

B double replacement reaction

Explanation:

took the test

The source of the centripetal force that arises when a runner rounds a curve on a track is _____.tension
friction
weight
gravity

Answers

while taking a turn on a track, the track provides the frictional force acting towards the center of the curve. we know that to move in a curve, centripetal force is required. here since the frictional force acts towards the center, it provides the necessary centripetal force to move in circle. hence the correct choice is

friction

It's actually Friction.

I just did the test and got it right.

Imagine that a tank is filled with water. The height of the liquid column is 7 meters and the area is 1.5square meters (m2
). What's the force of gravity acting on the column of water?
A. 73,500 N
B. 102,900 N
C. 68,600 N
D. 110,700 N