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A 10 kg block is sitting on a ramp inclined at 30 degrees above the horizontal. A horizontal force of 5 N is applied to the block horizontally to the right. If the coefficient of kinetic force is .2, find the acceleration of the block.
Suppose you are walking along Collins Avenue in South Beach and decide to order a thick milkshake (density = 1200 kg/m3). How high will the milkshake be sucked up a straw
A 0.51 kg mass vibrates according to the equation x = 0.43 cos 8.37t, where x is in meters, and t is in seconds. (a) Determine the amplitude. m (b) Determine the frequency. Hz (c) Determine the total energy. J (d) Determine the kinetic energy and pot..
A 0.4-kg object is traveling to the right (in the positive direction) with a speed of 2 m/s. obtain the magnitude of the impulse (in N-s) acting on the object
Dan is gliding on his skateboard at 2.0 m/s. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 8.0 m/s. How fast is Dan going as his feet hit the ground? Dan's mass is 60 kg and the skateboard's mass is 5.0 kg.
A geothermal power plant uses geothermal water extracted at 160oC at a rate of 440 kg/s as the heat source and produces 22 MW of net power.
a spacecraft is in orbit around a planet. the radius of the orbit is 3.1 times the radius of the planet which is r
An aluminum wire has a cross-sectional area of 2.70x 10^-6 m^2 and carries a current of 7.50 A. The mass density of aluminum is 2.70 g/cm^3. find the average speed of the electons in the wire.
In a new (inelastic) collision, the same two bumper cars with the same initial velocities now latch together as they collide. What is the final speed of the two bumper cars after the collision
A 2.0-kg cart collides with a 1.0-kg cart that is initially at rest on a low-friction track. After the collision, the l.0-kg cart moves to the right at 0.5 m/s and the 2.0-kg cart moves to the right at 0.3 m/s. What was the initial velocity of the..
An 9.2 mH inductor is connected to an ac generator (10.0 V rms, 650 Hz). Determine the peak value of the current supplied by the generator
A student m = 79 kg runs at a velocity vi = 2.2 m/s before jumping on a skateboard. After jumping on the board the student has a velocity vf = 1.69 m/s. What is mass of skateboard
For a certain transverse wave, the distance among two successive crests is 1.20 m and eight crests pass a given point along the direction of travel every 14.50s. Compute the wave speed.
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