Universal Law of Gravitation / Assignment

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The center of the Hubble space telescope is 6940 km from Earth's center. If the gravitational force between Earth and the telescope is 9.21 × 104 N, and the mass of Earth is 5.98 × 1024 kg, what is the mass of the telescope? Round the answer to the nearest whole number. kg

11,121

The distance between twin satellites that were originally 150 meters apart are now 300 meters apart. Which best describes the gravitational force between the twin satellites? It increased by 1/2. It decreased by 1/4. It increased by a factor of 2. It decreased by a factor of 4.

B

The gravitational force between the Sun (mass = 1.99 × 1030 kg) and Mercury (mass = 3.30 × 1023 kg) is 8.99 × 1021 N. How far is Mercury from the Sun? 6.98 × 1010 km 6.98 × 107 km 4.87 × 1013 km 4.87 × 1024 km

B

Which factors affect gravitational force? Check all that apply. composition of the objects distance between the objects masses of the objects volume of the objects weights of the objects

B, C

Saturn's moon Titan has a mass of 1.35 × 1023 kg. If Titan is 1.19 × 106 km from Saturn, and Saturn's mass is 5.86 × 1026 kg, what is the gravitational force between Saturn and its moon? 2.76 × 104 N 3.29 × 107 N 3.73 × 1021 N 4.43 × 1030 N

C

The acceleration due to gravity on the moon is 1.6 m/s2, about a sixth that of Earth's. Which accurately describes the weight of an object on the moon? An object on the moon is 1/6 times lighter than on Earth. An object on the moon is 1/6 times heavier than on Earth. An object on the moon is six times lighter than on Earth. An object on the moon is six times heavier than on Earth.

C

Which satellite has the greatest gravitational force with Earth? Earth and Satellite A Earth and Satellite B Earth and Satellite C Earth and Satellite D

D

Explain the effect of Earth's gravity on objects on the surface of Earth.

Gravity pulls objects toward Earth at a rate of 9.8 m/s2. Weight is the result of gravity's pull on a mass on Earth's surface.

On which planet would a 15.0 kg object weigh the most? How much would a 15.0 kg object weigh on that planet? Round the answer to the nearest whole number. N

Neptune / 168


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