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A 10.00cm.tall light bulb is placed at a distance of 90.0cm from a concave mirror having a focal length of 21cm determine the image distance and the image size.
A pitcher throws a 0.2kg baseball. IF the ball starts from rest and leaves the pitcher's hand a velocity of 30m/s, how much work is done on the ball? Show complete solution.
A pitcher hurls a 0.25kg softball. The ball starts from rest and leave the pitcher's hand at a speed of 25m/s. How much work is done on the softball by the hurler's arm? Show complete solution.
A 0.075kg arrow is fire horizontally. The bowstring exerts an average force of 65N on the arrow over a distance of 0.09m. With what speed did the arrow leave on bow. Show complete solution.
A work skier whose mass is 70kg has an initial speed of 6m/s. Later the speed of the skier is becomes 11m/s. Determine the work done by the net force acting on the skier. Show complete solution.
A juggler tosses three balls alternately a vertically upward. Each ball has an initial velocity of 5 m/s. How high does each ball rise? How long does each ball remain in the air?
A bomb is dropped from a plane which is flying with a constant horizontal velocity. Locate the bomb after 1 second in relation to the plane.
A stone is dropped from the top of a tower hits the ground 6 seconds later. How high is the tower?
A string clamped at both ends, vibrates in a pattern of six loops at a frequency of 240 HzWhat frequency will cause it to vibrate in four loops ?
Solve for the specific gravity
1. Coconut oil has density of 930kg/ m³
2. Sea water has a density of 1025 kg/m³
