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A tennis ball (m = 0.2 kg) is thrown at a brick wall. It is traveling horizontally at 16 m/s just before hitting the wall, find the magnitude of the average force of the wall on the ball
A baseball thrown off a pedestrian pathway, 36 m above the Erie Canal, What is the range of the baseball
A .30-06 rifle fires a bullet with a mass of 10 g at a velocity of 800 m/s. If the rifle has a mass of 4 kg, what is its recoil speed
A cube of ice, 27 cm on each side, is melted into a measuring cup. What is the volume of the liquid water
federal statute requires that a car's bumper be designed to withstand a 2.50 mph (1.12m/s) collision with an immovable object without damage to the body of the car. Calculate the average force on a
imagine that we have a string 1.5 meters long that is fixed at both ends. what is the frequency of the normal mode of the strings oscillation that has 3 antinodes
Early one October you go to a pumpkin patch to select your Halloween pumpkin. Calculate the work you do on the pumpkin as you lift it from the ground
tennis ball of mass 0.4Kg rebounds from a tennis racquet. What was the force experienced by the tennis racquet during it's time in contact with the ball
a ball made of rubber weighing 1kg is thrown at a wall at 6m/s. A ball of putty weighing 1kg is also thrown at the wall at a speed of 6m/s. Which ball transfers the greater momentum to the wall
,000-kg pile driver is used to drive a steel I-beam into the ground. calculate the average force the beam exerts on the pile driver while the pile driver is brought to rest
A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope inclined at 19.6° above the horizontal. How much work is done by the rope on the sledge
The four masses shown in the figure are connected by massless, rigid rods, Find the coordinates of the center of gravity
A bicycle rim has a diameter of 0.65 m and a moment of inertia, measured about its center, of 0.29kg?m2. What is the mass of the rim
You are driving in your car along a country road at a speed of 27.0m/s. As you come over a crest of a hill, how far is the tractor in front of you when you finally stop
You hit a 142 g baseball by swinging a bat with a force of 500 N. The collision lasts for 25.0 ms. If the ball was initially thrown at 19 m/s, What is the final speed of the ball
In a model AC generator, a 497 turn rectangular coil 7.0 cm by 26 cm rotates at 123 rev/min in a uniform magnetic field of 0.61 T. What is the maximum emf induced in the coil
A shopper pushes a cart 49 m south down one aisle and then turns 90.0° west and moves 11 m. What is the smallest possible displacement of the shopper
A lonely party balloon with a volume of 2.40 L and containing 0.100 mol of air is left behind to drift in the temporarily uninhabited, Calculate the entropy change of the air during the expansion
A 23 kg child goes down a straight slide inclined 38? above horizontal. The child is acted on by his weight, How large is the normal force of the slide on the child
A boxer punches another boxer with 2500N of force. The boxer's fist was traveling 10 m/s at the time of impact. What was the effective mass of the boxer throwing the punch
Capacitors C1 = 5.50 µF and C2 = 2.95 µF are charged as a parallel combination across a 250 V battery. Calculate the resulting charge on each capacitor
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a 6 iron. For how much more time was the ball in flight
A jet airplane flying from Darwin, Australia, has an air speed of 256 m/s in a direction 5.0° south of west. What is the magnitude of the velocity of the airplane relative to earth
A 190-?F capacitor and a 80m H inductor are in series with a 105 ? resistor. What is the impedance at the resonant frequency
Jonathan is riding a bicycle and encounters a hill of height h. What is the total external work done on the system of Jonathan and the bicycle between the time he starts up the hill and the time he r