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Assuming no water resistance, a big fish is gliding through the water with momentum 2.0kg m/s. It swallowed a small fish of mass 200g, moving in the opposite direction at a very fast speed of 17m/s relative to the big fish. As a result of that, the big fish felt a punch in his stomach and regretted his move. What was the final velocity of the big fish after the meal?
Two skydivers are holding on to each other while falling straight down at a common terminal speed of 51.1 m/s. What is the change in kinetic energy of the system
Find the capacitance of the cable for a 100 m length of coaxial cable with radii 0.831618mm and 1.98341 mm. The permittivity of a vacuum is 8.8542 × 10^?12 C^2/N · m^2
A 10.5 kg uniform board is wedged into a corner and held by a string at a 50 degree angle. Determine the tension in the string. Hint: take torques about the corner and assume any length for the board.
A 1200-kg car travels at a constant speed of 18.00 m/s around a circular track that is 80m across. What is the kinetic energy of the car?
A model airplane with a mass of 0.757 kg is tethered by a wire so that it flies in a circle 30.9 m in radius, Find the angular acceleration of the airplane when it is in level flight
In a hydraulic lift, the maximum gauge pressure is 14.3 atm. If the diameter of the output line is 23.7 cm, what is the heaviest vehicle that can be lifted
A 1.9-kilogram mud ball drops from rest at a height of 18 m. If the impact between the ball and the ground lasts 0.56s, Find the final velocity of the 4.90-kg ball if the collision is elastic
Use approximate calculations assuming constant current during the output pulse. Calculate the ampere-hour rating of the battery so it lasts for five years.
question1find out the normal force for a laundry basket with a mass of 3.4 kg in each of the following situationsa at
To maintain constant velocity, the bicyclist is able to return to the lower applied force from Part A but must remain in the larger gear from Part B ( = 4.64 ). What is , the coefficient of rolling resistance on this road surface
The acceleration due to gravity on the Moon's surface is known to be about one-sixth the acceleration due to gravity on the Earth. find the mass of the Moon in terms of the mass of the Earth
In outer space a rock of mass 12 kg is acted on by a constant net force ‹ 30, ?14, 49 › N during a 3 s time interval. What was the rock's velocity at the beginning of the time interval
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