Multiple Choice
A balloon is released from a tall building. The total mass of the balloon including the enclosed gas is 2.0 kg. Its volume is 5.0 m3. The density of air is 1.3 kg/m3.
-What is the magnitude of the initial acceleration of the balloon?
A) zero m/s2
B) 9.8 m/s2
C) 10.9 m/s2
D) 22.1 m/s2
E) 43.6 m/s2
Correct Answer:
Verified
Correct Answer:
Verified
Q10: A glass tube has several different cross-sectional
Q37: A force of 250 N is applied
Q39: In a classroom demonstration,a 79.2-kg physics professor
Q46: Which one of the following statements concerning
Q50: A u-shaped tube is connected to a
Q51: What mass of water (at 4.0 °C)
Q52: How much force does the atmosphere exert
Q54: The density of ice is 0.92 g/cm<sup>3</sup>;
Q56: The average density of the material
Q58: Within a certain type of star called