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A 5-kg fish swallows an absentminded 1-kg fish swimming towards it at a velocity that brings both fish to a halt immediately after lunch. What is the velocity of the smaller fish before it becomes lunch?
Use the concepts of this chapter to describe what would happen if you fire a gun that has bullet ten times as massive as the gun.
An apple falls from a tree and strikes the ground without bouncing. What happens to its momentum? Is momentum conserved?
You and your friend toss a ball back and forth in the middle aisle of an airplane in flight. Does the kinetic energy of the ball depend on the speed of the airplane?
One kilogram of dry air at STP conditions is exposed to 1.00 R of X-rays. One roentgen is defined by Equation 32.1 in Section 32.1. An equivalent definition can be based on the fact that an exposure of one roentgen deposits 8.30 x 10-3 J of energy..
An automobile having a mass of 1,000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring with constant 5.85 106 N/m, What was the speed of the car before impact
A 0.550 kilogram block slides on a frictionless horizontal surface with a speed of 1.10 m/s. Obtain what is the force constant of this spring
A block of mass m = 353 g is dragged with a string across a rough horizontal table. What is the power supplied by the force of friction
kilograms of water are changed from ice at 0?C into liquid water at 0?C, determine the change in mass of the water
A 6.0 μF air capacitor is connected across a 100 V battery. After the battery fully charges the capacitor, it is immersed in transformer oil (K = 4.5). How much additional charge flows from the battery, which remained connected during the process?
A bicyclist rides at a constant speed of 3.5m/s up a slope at 4.5 degrees to the horizontal. If the total mass of the person and the bicycle is 85kg, what is the power of the cyclist?
Find out the longest wavelength electrons that can produce a first-order maximum.
A candle with a flame 2.5cm tall is placed 4.3cm from the front of a concave mirror. A virtual image is formed 13cm behind the mirror. Find the radius of curvature of the mirror
A 8.40-{\rm kg} block of ice, released from rest at the top of a 1.24-{\rm m}-long frictionless ramp, slides downhill, reaching a speed of 2.65 {\rm m/s} at the bottom. What is the angle between the horizontal and the ramp?
the plane of a flat, circular loop of wire is vertical. An external B-field is directed perpendicular to the plane of the loop. What is the direction of the external magnetic field
A thin metallic spherical shell of radius 0.377 m has a total charge of 5.03 × 10-6 C placed on it, What is the electric field at a distance of 0.785 m from the center of the spherical shell
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