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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?
A 1.20 kg mass on a horizontal spring oscillates on a frictionless surface with a displacement as a function of time given by x(t) = 0.075cos
Suppose that charges on a dipole antenna oscillate slowly at a rate of 1 cycle/s, and the antenna radiates electromagnetic waves in a region of space. What is the period of the charge oscillation
Two large parallel conducting plates are 8 cm apart and carry equal however opposite charges on their facing surfaces. The magnitude of the surface charge density on either of the facing surfaces is 2.0nC/m^2. Decide the magnitude of the electric pot..
A 2 kg cart with 2.0e-5 C charge on it starts at rest 1.0m from a fixed dome with charge +1e-4 C. The cart is released. Decide how fast it is moving when it is 3.0 m from the fixed charge dome. If you could include a simple bar graph that would be gr..
A typical adult ear has a surface area of about 1.90 10-3 m2. How much power is intercepted by the ear
A potential cannon is created to shoot charged balls straight upward. What is the maximum height, above the end of the cannon, it will reach
A 0.13 kg baseball is hit by a .95 kg bat. The contact point on the bat is moving at 40 m/s just prior to ballbat contact, How fast is the ball moving just after impact
A 1750-kg car is traveling with a speed of15.0 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 55.5 m?
A 1.00-cm-high object is placed 3.80 cm to the left of a converging lens of focal length 7.50 cm. Find the position and height of the final image
A certain airplane has a speed of 250.0 km/h and is diving at an angle of 30.0° below the horizontal when the pilot releases a radar decoy. How high was the plane when the decoy was released
A car rounds a 1.15 radius circular track at 82 Find the magnitude of the car's average acceleration after it has completed one-fourth of the circle.
A rubber balloon filled with air is rubbed against a wool sweater and acquires a negative charge. The balloon is placed up against a flat wall and released. The balloon stays stuck to the wall. How is this possible if the wall is not charged in an..
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