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On a frictionless, horizontal air table, puck A (with mass 0.250 ) is moving toward puck B (with mass 0.350 ), which is initially at rest. After the collision, puck A has a velocity of 0.150 m/s to the left, and puck B has a velocity of 0.610 m/s to the right.
Calculate the change in the total kinetic energy of the system that occurs during the collision.
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a stell ball of mass m suspended by a thread of lenght l. the ball is then released when the thread is horizontal. at the bottom of this path, find the speed of the block just after collision
assume that a receiver has first amplifier stage with a 5k ohms input resistance, a power gain of 300, an input audio signal of 20uV, and an operating temperature of 27 Celsius.
You are given a pendulum composed of a 0.028 kg mass on the end of a 0.47 m long massless string. compute the tension in the string when the mass is at the release point, ? = 48°
A 2.20 H coil with a resistance of 2.18×10^2 ohms is in series with a 1.29×10^3 ohms resistor. What is the peak value of the potential difference across the coil
The drawing shows a circus clown who weighs 950 N. What is the minimum pulling force that the clown must exert to yank his feet out from under himself
Natural gold has only one isotope: If gold is bombarded with slow neutrons, particles are emitted. (a) Write the appropriate reaction equation. (b) Calculate the maximum energy of the emitted beta particles.
the driver of a train moving at 20 m/s applies the brakes when it passes an amber signal. Find the train's acceleration and its speed at the next signal
An earth satellite of the mass 3500 kg moves in a circular orbit with an orbital speed of 3.3 km/s. Find the elevation of the satellite over the Earth surface
Two people are pushing on a box. One person pushes with a force of 5 N. The other person pushes in the same direction with a force of 4 N
A pair of hedge trimmers are 45 cm long from the pivot to the end of the handles. If the person applies of a force of 15 N on each handle, how much force is applied to the branch
A block of mass m = 2.10 kg is pushed a distance d = 4.20 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N, Determine the work done on the block by the applied force
The electric field of a charge is 1.69e+07 N/C at a distance 14.1 cm and points away from the charge. What is the sign and magnitude of the charge
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