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A ball is thrown forward horizontally from the top of a cliff with a velocity of 10 m/s. the height of the cliff is 45 meter. Find the time taken for the ball to reach the ground? Find the distance from the cliff of the ball to the horizontal just before it hits the ground? And find the direction of the ball to the horizontal just before it hits the ground?
The potential at location A is 392 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 780 V, and when released from rest from this spot, the particle arrives at B wit..
A block of mass 2.50 kg is pushed 3.00 m along a frictionless horizontal table by a constant 18.0 N force directed 25.0° below the horizontal. Determine the work done by the net force on the block
A capillary-tube viscometer is being selected to measure viscosity of a liquid food, If the tube length is 10 cm and a maximum pressure of 25 Pa can be measured, determine the tube diameter to be used
two wires a and b made of the same material and having the same lengths are connected across the same voltage source.
A car of mass m is initially moving with a velocity v. Find the time that it takes for the car to come to rest
Ruby lases at a wavelength of 555 nm. Acertain ruby crystal has 4.00 multiplied by 1019 Cr ions (which are the atomsthat lase). What is the average power emitted during the pulse
Find out the maximum torque on the wire. A bullet of mass 5g is fired horizontally into a wooden block of mass 1.26kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.16.
A golfer tosses a golf ball straight up into the air and itreturns to his hand 1.5 seconds later. what was the initial velocity of the tossed ball?
A 208 kg copper bar is put into a smelter for melting. The initial temperature of the copper is 300.0 K. How much heat must the smelter produce to completely melt the copper bar? (The specific heat for copper is 386 J/kg?K, the heat of fusion for cop..
A baseball of mass 0.15kg approaches a batter at 30.0 m/s. Consider the ball as traveling horizontally toward the batter in the negative x-direction so that V= -30.0 i m/s. What is the work done by the bat on the ball
A 256 kg wooden raft floats on a lake. When a 80 kg man stands on the raft, it sinks 9.0 cm deeper into the water. When he steps off, the raft vibrates for a while. What is the total energy of vibration
A shower head has 30 circular openings, each with radius 1.0 mm. The shower head is connected to a pipe with radius 0.80 cm. If the speed of water in the pipe is 2.2 m/s, what is its speed as it exits the shower-head openings?
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