Question
1. Calculate the speed in m/s at which the Earth revolves about the sun. You may assume the orbit is nearly circular.
2. A satellite is about 6.5 x 10^3 km from the (center of the) Earth. Find its average orbital speed about the Earth.
3a. A certain satellite has a kinetic energy of 8 billion joules at perigee (closest to Earth) and 7 billion joules at apogee (farthest from Earth). As the satellite travels from apogee to perigee, how much work does the gravitational force do on it?
3b. Does its potential energy increase or decrease during this time, and by how much? (Enter a positive answer if the energy increases, and a negative answer if the energy decreases.)
2. A satellite is about 6.5 x 10^3 km from the (center of the) Earth. Find its average orbital speed about the Earth.
3a. A certain satellite has a kinetic energy of 8 billion joules at perigee (closest to Earth) and 7 billion joules at apogee (farthest from Earth). As the satellite travels from apogee to perigee, how much work does the gravitational force do on it?
3b. Does its potential energy increase or decrease during this time, and by how much? (Enter a positive answer if the energy increases, and a negative answer if the energy decreases.)
Answers
2.96 x 10^4 m/s
Related Questions
Calculate the speed of an 7.8×104 kg airliner with a kinetic energy of 1.0 × 109 J.
Answer in units...
how to calculate the speed of sound at temp of -83F and 135F?
Calculate the speed of a 10,000 kg airliner with a kinetic energy of 3.1 x 10^9 J.
calculate the rms speed of nf3 molecules at 23 C?
Calculate the mean speed, using equation 1.13 and 1.17 of (a) He atoms and (b) CH4 molecules at (i)...
Calculate the speed of each runner from the graph in figure 3.14
Calculate the speed with which a swimmer enters water if she slides down a frictionless ramp that is...
Calculate the rms speed of Br2 molecules at 23 °C and 1.00 atm. What is the rms speed of Br2 at 23 °...
To calculate the speed of an object you must divide the distance the object travels by
A. Velocity...
How do I calculate the speed of an object?