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A stone is thrown horizontally at a speed of 5.0 m/s from the top of a cliff 78.4 m high.
1. How far from the base of the cliff does the stone hit the ground?
2. How long does it take the stone to reach the bottom of the cliff?
3. What are the horizontal and vertical components of the stone’s velocity just before it hits the ground?
On a cool morning, when the temperature is 14.0 ^circC, you measure pressure in your car tires to be 20.0 psi. After driving 40.0 mi on the freeway, the temperature of your tires is 50.0 ^circC.
A string 2m long is fixed at both ends. It is found that standingwaves can be set up in this string for frequencies of 200Hz and250Hz, What is the fundamental frequency of the string
Light is refracted through diamond from air. If the angle of incidence is 30° and the angle of refraction is 12°, what is the speed of light in diamond?
A cord is used to vertically lower an initially stationary block of mass M = 30 kg at a constant downward acceleration of g/5. Find the kinetic energy of the block
An ambulance moving at 36 m/s sounds its siren whose frequency is 350 Hz. What frequency does a person in the car hear as the ambulance approaches the car
Three point charges are located on the x-axis. The first charge, q1= 10uC, is at x= -1.00m; the second charge, q2 = 20.0 uC,, Find the force that each charge is subjected
an ideal gas has a pressure of 2.5, a volume of 1.0L at a temperature of 30degress C. How many molecules are there in the gas
A 10 kilogram block of metal measuring 12cm by 10 cm by 10 cm is suspended from a scale and immersed in water. What is the reading of the spring scale
Solid disk of radius 0.5m and mass 5kg is rotating countercw about central pivot with ω=10sec^-1. A constant fictional foce of 3N aplpied on outer edge is used to slow disk to a stop. How long in time does it take for the disk to stop? How many re..
A U-tube open at both ends is partially full w/ water. Oil (p=750 kg /m3) is then poured into the right arm and forms a column L = 5.00cm high. a) Decide the difference h in the hi=eights of the two liquid surfaces.
A 5.00-liter aluminum cylinder at 5.00°C is filled to the brim with gasoline at the same temperature. If the aluminum and gasoline are warmed to 69.0°C, how much gasoline spills out
Rail guns can accelerate an object by using the magnetic force on a current carrying device. Calculate the speed of the wire as it leaves the rail
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