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A 4.50 g} bullet is fired horizontally into a 1.10 kg} wooden block resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.200. The bullet remains embedded in the block, which is observed to slide 0.200 m} along the surface before stopping.
Part AWhat was the initial speed of the bullet?v = m/s}
A 1.00 kg block Is resting against a light, compressed spring at the bottom of a rough plane inclined at an angle of 30 degrees. Kinetic friction between box and plane is 0.100. Suppose the spring is compressed 10 cm from its equilibrium length.
On a frictionless, horizontal air table, puck A (with mass 0.150kg} ) is moving toward puck B (with mass 0.350kg} ), which is initially at rest. After the collision, puck A has a velocity of 0.120m/s to the left, and puck B has a velocity of 0.650..
Find the kinetic energy of a 3.70{\rm kg} cat that has 0.240 kg *m/s}} of momentum. Find the momentum of a 1.22{\rm kg} ball that has 16.0 J} of kinetic energy.
Two figure skaters, one weighing 625N and the other 775N , push off against each other on very smooth ice. If the heavier skater travels at 1.60m/s , how fast will the lighter one travel?
A charge of +2?C and 6 mg is fired directly upward at a speed of 500 m/s. The charge reaches the top of its trajectory at 30 m. Ignoring gravity, find the magnitude and direction of the electric field necessary to accomplish this.
In an EM wave traveling west, the B field oscillates vertically and has a frequency of 84.0 kHz and an rms strength of 6.30×10^?9T.
A 4.3 kg rock is initially at rest at the top of a cliff. Assume that the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water. The specific heat of water is 4186 J/kg·?
The tire on a bicycle is filled with air to a gauge pressure of 691 kPa at 20?C. What is the gauge pressure in the tire after a ride on a hot day when the tire air temperature is 48?C?
Consider a grounded conducting sphere of radius "a" in the presence of a point charge "Q" a distance "D" away from the center of the sphere. How do you show the electric field E is everywhere normal of the sphere, and how do you find the induced char..
Now imagine that the coil is subjected to a series of experiments, that we will label 1, 2, etc., for clarity. At the beginning of both experiments 1 and 2, the magnetic field is initially 3.0 T.
An insulated Thermos contains 138cm3 of hot coffee at 95 °C. You put a 12g ice cube at its melting point to cool the coffee. By how numerous degrees has your coffee cooled once the ice has melted and equilibrium is reached.
A sinusoidal ac voltage source in a circuit produces a maximum voltage of 12.6V and an rms current of 7.50mA. Find voltage amplitude
Assume the steel in the body of an automobile has an emissivity of 0.3 and a specific heat of 450 J/Kg-degree C. What temperature will the top of the hood reach
What is the electric flux through the circle when its face is perpendicular to the field lines?
a man pushes horizontally on a desk that ress on a wooden floor and moves the desk by 3m. the coeffrcient of kinetic friction between the desk, what is the total work done on the block
A 115microF capacitor is connected to an ac generator with an rms voltage of 17.0V and a frequency of 150.0Hz .What is the rms current in this circuit?
A sample of a material has 40000 radioactive particles in it today. Your grandfather measured 80000 radioactive particles in it 60 years ago. how many radioactive particles will the sample have
1) Find the net force acting on particle 3 due to the presence of the other two particles. Report you answer as a magnitude and a direction measured from the positive x axis.
An electron has an initial velocity of 2.00 106 m/s in a uniform 5.00 105 N/C strength electric field. How far does the electron travel before coming to rest
A series ac circuit consists of a voltage source of frequency f=60 Hz and source voltage amplitude 345 volts, a resistor of resistance R=335 ohms, what is the current amplitude in the circuit
In a TV-show, an inexperienced doctor touches the electrodes of a defibrillator and gets thrown across the room, what is the maximum height above ground he could reach
A snow skier, starting from rest, goes downhill for 5.00s and reaches a level spot of smooth snow. What is average velocity on level spot
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