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1. A baseball with a mass of 0.14 kg is moving at +35 m/s. Calculate the momentum of the baseball.
2. Find the velocity a 7.26 kg bowling ball must have to have the same momentum as the baseball.
3. What is the momentum of a small car, mass 725 kg, is moving at 100 km/h.
4. A cannon with a mass of 1200 kg fires a 53 kg ball at speed of +67 m/s. What is the momentum of the ball?
Light travels at a speed of 1.947 × 108 m/s in a certain substance. What is the index of refraction of this substance
What is the total charge of the uranium nucleus? (The neutral uranium atom has 92 electrons.), What is the magnitude of its electric field at a distance of 1.48×10-10 m from the nucleus
The motor in a refrigerator has a power of 156 W. If the freezing compartment is at 268 K and the outside air is at 302 K, what is the maximum amount of energy
A long wire lying along the x-axis carries a current of 1.60 A in the +x direction. There is the uniform magnetic field present, given by B=0.003i + 0.004j + 0.002k, where i, j, k are the unit vectors along cartesian coordinate axes') in units of Tes..
Calculate the absoute pressure at the bottom of a fresh-water lake at a depth of 28.9 m. Assume the density of the water is 1.00x10^3 kg/m^3 and the air above is at a pressure of 101.3 kPa
A car is moving with constant velocity v, and has wheels of radius R. At what angle does the piece of mud drop off the wheel
A 1.43 kg object is held 1.28 m above a relaxed, massless vertical spring with a force constant of 318 N/m. The object is dropped onto the spring. How far does the object compress the spring
A 10 m platform diver during his diving can increase his rotation rate from an initial rate of 1.1 rev/s to a maximum of 2.8 rev/s. what is his moment of inertia at his maximum rotation rate
When the Sun is directly overhead, a hawk dives toward the ground with a constant velocity of 5.30 m/s at 68.5° below the horizontal
A 5.70 cm x 3.10 cm rectangle lies in the xy-plane, What is the electric flux through the rectangle if E = (50.0 i-hat + 60.0 k-hat) N/C
On a cool morning, when the temperature is 16 deg Celsius, you measure the pressure in your car tires to be 20.0 psi. After driving 40 mi on the freeway, temperature of your tires is 56.0 deg Celsius. What pressure will your tire gauge now show.
what is the new value of energy stored in it. What is the force that is acting between them.
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