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A ball is thrown horizontally from the top of a building 130 m high. The ball strikes the ground 50 m horizontally from the point of release. What is the speed of the ball just before it strikes the ground? Answer in units of m/s.
What is the distance between the two traps?
In an electron diffraction experiment, consider a screen with asingle vertical slit of finite width d in the x-direction,"illuminated" from behind by a plane monochromatic electron wave ofwavelength λ with the wave fronts parallel to the plane of ..
What must be the potential difference across the plates of the capacitor filled with a dielectric so that it stores the same amount of electrical energy?
A 15 ohm resistor has a voltage difference of 1 V across its leads. What is the power being dissipated in this resistor
A parallel-plate capacitor with area 0.500 m2 and plate separation of 2.00 mm is connected to a 15.00-V battery. How much charge is stored on the plates
The drawing shows an intravenous feeding. With the distance shown, nutrient solution (? = 1010 kg/m3) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood
A small block with mass 0.221 kg is sliding down a frictionless ramp that is inclined at an angle of 53.1° above the horizontal. Assume g = 9.80 m/s2. As the object slides down the incline, what is the magnitude of the normal force that the surfac..
A pendulum makes 24 oscillations in 33s. A) Find the period. Express your answer to two significant figures and include the appropriate units. B) Find the pendulum's length. Express your answer to two significant figures and include the appropriate u..
Howmuchheatmustbeaddedtoa8.0-kgblockoficeat-8°Ctochangeittowaterat14°C? Thespecific heat of ice is 2050 J/kg · C°, the specific heat of water is 4186 J/kg · C°, the latent heat of fusion of ice is 334,000 J/kg, and 1 cal = 4.186 J.
The angle of incidence of a light beam in air onto a reflecting surface is continuously variable. What is the index of refraction of the reflecting material
a rotating fan completes 1150 revolutions every minute. consider the tip of a blade at a radius of 18.0 cm. a through
Two negative point charges are separated by 11.0cm and feel a mutual repulsive force of 3.45nC . The charge of one is three times that of the other. How much charge does each have
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