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How much work must be done to move a 3.8 kg chair 6.1 m acrossthe floor at constant velocity if the coefficient of kineticfriction between the chair and the floor is 0.64 and you arepushing at an angle of 30.2o relative to the floor?
make a hypothesis about initial and final momentums before playing with the sim.make a data table for the following
a wooden box on a wooden table is pulled at constant speed by a 10n force at a 30 degree angle. what is the mass of the
A car moving at 37 m/s approaches a stationary whistle that emits 270 Hz sound. The speed of sound is 347 m/s. What is the frequency of sound heard by the driver of the car.
The two masses in the Atwood's machine shown in the figure have an initial speed of = 0.20 , and is moving upward. How high does rise above its initial position
A string with both ends held fixed is vibrating in its third harmonic. The waves have a speed of 192m/s and a frequency of 200Hz. Calculate the maximum transverse velocity of the string at this point
You come across an open container which is filled with two liquids. Since the two liquids have different density there is a distinct separation between them. what is the density of the unknown fluid
A rabbit runs in the straight line with a velocity of +1.6 m/s for a period of time, rests for 12 s, and then runs again along the equivalent line at +0.52 m/s for an unidentified amount of time. The rabbit travels the total distance of 1224 m, and i..
The electron gun in a TV picture tube accelerates electrons between two parallel plates 1.5cm apart with a 27 kV potential difference between them.
Two parallel current carrying wires are separated by 12 cm and each are 50 cm in length. Determine the Force acting on each wire due to the other one
A 40cm -tall, 6.0cm -diameter cylindrical beaker is filled to its brim with water. What is the downward force of the water on the bottom of the beaker
A man stands on a frictionless platform that is rotating with an angular speed of 2.3 rad/s; his arms are outstretched and he holds a weight in each hand. what is the resulting angular speed of the platform
An unknown gas is introduced into the aforementioned apparatus using the same tuning fork, and the first resonance occurs when the air column is 6.14 cm long. Find the speed of sound in the gas. m/s
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