The planet that rotates on its side is
•
•(a) Earth
•(b) Jupiter
•(c) Mars
•(d) Uranus
d
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Which of the following is true of planet Earth?
A) It has an atmosphere rich in water vapor. B) It has an atmosphere that is mainly composed of oxygen. C) It is the fourth largest planet of the Solar System. D) It is half the size of Jupiter.
If we use the Doppler method to measure the period with which a star alternately moves toward and away from us due to an orbiting planet, then we also know the
A) orbital period of the planet. B) mass of the planet. C) distance to the star. D) radius of the planet.
When objects at different temperatures are brought into thermal contact with one another, the resulting spontaneous flow of heat proceeds from the object with the higher
A) thermal conductivity to the one with the lower thermal conductivity. B) specific heat to the one with the lower specific heat. C) heat capacity to the one with the lower capacity. D) temperature to the one with the lower temperature. E) impossible to predict on the basis of this data.
A 7.0-kg rock is subject to a variable force given by the equation
F(x) = 6.0 N - (2.0 N/m)x + (6.0 N/m2)x2 If the rock initially is at rest at the origin, find its speed when it has moved 9.0 m. What will be an ideal response?