Seasons on Earth are caused by
A) Earth's axis tilt.
B) Earth's varying distance from the Sun.
C) Earth's varying orbital speed around the Sun.
D) the gravitational influence of the Moon.
E) the Sun's gravity.
A) Earth's axis tilt.
You might also like to view...
Covalently bonded materials cannot be modeled with pair potentials, because the pair potential energy is only a function of interatomic ______________.
Fill in the blank(s) with the appropriate word(s).
Population II stars contain more metals than Population I stars
a. True b. False Indicate whether the statement is true or false
A 1.5-kg cart attached to an ideal spring with a spring constant of 20 N/m oscillates on a horizontal, frictionless track
At time t = 0.00 s, the cart is released from rest at position x = 10 cm from the equilibrium position. (a) What is the frequency of the oscillations of the cart? (b) Determine the maximum speed of the cart. Where does the maximum speed occur? (c) Find the maximum acceleration of the mass. Where does the maximum acceleration occur? (d) How much total energy does this oscillating system contain? (e) Express the displacement as a function of time using a cosine function.
A 5-kg object is moving to the right at 4 m/s and collides with another object moving to the left at 5 m/s. The objects collide and stick together. After the collision, the combined object:
a. is moving to the right. b. is moving to the left. c. is at rest. d. has less kinetic energy than the system had before the collision.