Gravitational force is greater for a satellite in elliptical orbit when it is at the
A) apogee (farthest point).
B) perigee (closest point).
C) zenith.
D) same acceleration at all of the above places.
Answer: B
You might also like to view...
The greenhouse effect is bad for Earth
a. True b. False Indicate whether the statement is true or false
100 grams of liquid nitrogen at 77 K is stirred into a beaker containing 200 grams of 5°C water. If the nitrogen leaves the solution as soon as it turns to gas, how much water freezes? (The heat of evaporation of nitrogen is 6.09 cal/gram and the heat of fusion of water is 80 cal/gram.)
Which of the following statements is true of giant stars?
A) Supergiant stars are 1000 times smaller than the Sun's diameter. B) They have more surface area than main-sequence stars of the same temperature. C) They have very low luminosities because of their big size. D) Red dwarfs are giant stars that are hot and have high luminosities.
A __________ is a three-dimensional image made using a laser
Fill in the blank(s) with correct word