Match the words at the left to the correct blanks in the sentences at right. You may use words more than once.
Ans:
-Convection and weather occur primarily in Eath's troposphere.
-X-rays from the Sun are absorbed primarily in Eath's thermosphere.
-The greenhouse effect causes warming primarily in Earth's troposphere.
-The "edge of space" occurs in the layer we call the exosphere.
-Ultraviolet light from the Sun is absorbed primarily in Eath's stratosphere.
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A lump of clay is thrown at a wall. A rubber ball of identical mass is thrown with the same speed toward the same wall. Which statement is true?
a. The clay experiences a greater change in momentum than the ball. b. The ball experiences a greater change in momentum than the clay. c. The clay and the ball experience the same change in momentum. d. It is not possible to know which object has the greater change in momentum.
The process that effectively regulates Earth's average temperature is
a. the greenhouse effect. b. Rayleigh scattering. c. the dew point. d. auroras.
Pluto's gravity affects the orbit of Uranus, and this fact was used to discover Pluto
Indicate whether the statement is true or false
The angle that a swinging simple pendulum makes with the vertical obeys the equation ?(t) = (0.150 rad) cos[(2.85 rad/s)t + 1.66]. (a) What is the length of the pendulum?
A) 0.15 m B) 0.83 m C) 1.21 m D) 2.02 m E) It cannot be determined from the information given. (b) What is the mass of the swinging bob at the end of the pendulum? A) 2.85 kg B) 1.66 kg C) 0.454 kg D) 0.150 kg E) It cannot be determined from the information given. What will be an ideal response?