If a satellite moves with constant speed in a perfectly circular orbit around the earth, what is the direction of the acceleration of the satellite?
A) in the forward direction
B) in the backward direction
C) outward away from the earth
D) inward toward the earth
E) The acceleration is zero because the speed is constant.
D
You might also like to view...
If you focus a store-bought telescope at the full Moon on a typical clear night, the full Moon will be viewed as _________________
a. right-side up b. upside down c. a dot in the sky d. the color red
________ are hot compact stars whose mass is comparable to the Sun's and size to Earth's.
A. Neutron stars B. Pulsars C. White dwarfs D. Black holes
A certain crystal has an interatomic spacing of 0.442 nm. A beam of neutrons moving with a speed of 1640 m/s is diffracted from the crystal. What is the de Broglie wavelength of the neutron?
A) 0.121 nm B) 0 nm C) 0.241 nm D) 0.484 nm E) 0.682 nm
A horizontal force of 1000 N is needed to overcome the force of static friction between a level floor and a 250-kg crate. If g = 9.8 m/s2, what is the coefficient of static friction?
a. 4.0 c. 0.41 b. 0.51 d. 0.31