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TRUE or FALSE.
The sound intensity produced by a given sound source is directly proportional to the square of the distance from the source.
Hearing is very important, so you need to take good care of your ears. Avoid loud sounds, which could hurt your ears and cause hearing damage. Expound this idea using Physics concepts.
. a force of 100N is applied to the rim of the pulley wheel of diameter 200mm. Solve for the torque.
A train started from rest and moved with constant acceleration. At one time it was travelling at 33 m/s and 160m farther on it was travelling 54m /s
Calculate (a) acceleration (b) time required to travel 160m(c)distance moved from rest to time the train had a speed of 33m/s
A distance of 0.002 m separates two objects of equal mass. If the gravitational force between
them is 0.0104 N, find the mass of each object.
A ball is thrown directly downward with an initial speed of 7.95 m/s, from a height of 30.9 m. After what time interval does it strike the ground?
___ s
Nerve impulses in a human body travel at a speed of about 100 m/s. Suppose a person accidentally steps barefoot on a pebble. About how much time does it take the nerve impulse to travel from the foot to the brain (in s)? Assume the person is 1.70 m tall and the nerve impulse travels at uniform speed.
___________ s
A surveyor measures the distance across a straight river by the following method: Starting directly across from a tree on the opposite bank, he walks x = 116 m along the riverbank to establish a baseline. Then he sights across to the tree. The angle from his baseline to the tree is 𝜃 = 34.0°. How wide is the river?
Y = _______ m
is the equation V = V0 + ax dimensionally correct?
Boyong and Boyet is conducting their experiments on a frictionless surface. They observed that Boyet’s 5-kg ball travelling to the right at 2 m/s collides head-on with the stationary 7.50-kg ball of Boyong. If the collision is (a) elastic and (b) perfectly inelastic, calculate the final velocities of the balls.
