Author Question: A balloon is buoyed up with a force equal to the a. density of the surrounding air b. atmospheric ... (Read 32 times)

vicotolentino · **on:** Jul 28, 2018

A balloon is buoyed up with a force equal to the
a. density of the surrounding air
b. atmospheric pressure
c. weight of the balloon and its contents
d. weight of the air it displaces

Question 2

A 2.0-kg block slides on a frictionless 25 inclined plane. A force of 4.6 N acting parallel to the incline and up the incline is applied to the block. What is the acceleration of the block?
a. 1.8 m/s2 up the incline
b. 2.3 m/s2 up the incline
c. 6.6 m/s2 down the incline
d. 1.8 m/s2 down the incline
e. 2.3 m/s2 down the incline