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A kid is pulling a 15 kilogram box up a 3.5-m high, 24o ramp with a force of 77 Newton parallel to the ramp. Find the box change in kinetic energy from bottom of ramp to the top of the ramp?
A drill bit on a variable - speed drill has a constant angular acceleration of 2.5 rad/s2. The drill has an initial angular speed of 5.00 rad/s (a) after 4.00s, what will the angular displacement of the bit be? (b) What will the drill bits final spee..
a hockey player hits a puck so that it comes to rest in 10s after sliding 100ft on the ice. determine a the initial
A particle (q=7.5*10^-6 C) is released from rest at a point on the x-axis, x = 10 cm. It begins to move due to the presence of a 2.0*10^-6 C charge which remains fixed at the origin. What is the kinetic energy of the particle at the instant it passe..
The speed of a particle moving in a circle 2.0 m in radius increases at the constant rate of 4.4 m/s2. what is the speed of the particle
A stone is thrown outward from the top of a 59.4m high cliff with an upward velocity component of 19.5 m/s. How long is the stone in the air
The great, grey-green, greasy Zambezi River flows over Victoria Falls in south central Africa. what is the velocity of the water when it hits the bottom
Concave Shaving Mirror A concave shaving mirror has a radius of curvature of 35.0 cm. It is positioned so that the (upright) image of a man's face is2.00 times the size of the face. How far is the mirror from the face? Point Source A point source of ..
A 83.0-mH inductor and a 5.90-μF capacitor are connected inseries with a generator whose frequency is 449 Hz. The rms voltageacross the capacitor is 3.70 V. Determine the rms voltage across the inductor.
A 160 kg hoop rolls along a horizontal floor so that the hoop's center of mass has a speed of 0.170 m/s. How much work must be done on the hoopto stop it?
What was the angle of the hill. what is the current in the circuit when four lamps are turned on.
Suppose you want to make a scale model of a hydrogen atom. For the nucleus you choose a small ball bearing with a radius of 1.7 mm, What would be the radius of the model
A 3.0 kg block slides along a frictionless horizontal surface with a speed of 7.0 m/s. How far up the ramp does the block slide before coming momentarily to rest
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