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A projectile is launched at 15m/s at an angle of 30 degrees above the horizontal from the edge of a cliff. If the projectile lands 10m horizontally from the base of the cliff what is the height of the cliff?
a sports photographer has a 150 mm focal length lens on his camera.the photographer wants to photograph a sprinter
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. evaluate the electric field between the plates
David is driving a steady 24 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant while David passes. How far does Tina drive before passing David.
If you have 1.96 * 10^9 KWH and the value of energy is $0.10 per KWh, what is the value of electrical energy produced
Atwood's Machine The two masses (m1 = 5.1kg and m2 = 2.5kg ) in the Atwood's machine are released from rest, with m1 at a height of 0.95m above the floor. Determine the pulley's mass
There are three masses m1 = 2.0 kg, m2 = 5.0 kg and m3 = 7.0 kg. The mass are all affixed to a massless rod of length 15cm. Calculate the center of mass of the system
A 5.0-, 0.732- wire is used to support two uniform 235- posts of equal length, What is the frequency of the sound this wire produces
suppose that each vehicle is initially moving at 8.60 m/s and that they undergo a perfectly inelastic head-on collision. what force does the seat belt exert on each driver
A 30kg man climbs to the top of the slide 4m high. He slidesdown to the bottom. What is his kinetic energy at the bottom if there is nofriction on the slide? What is his kenetic energy at the bottom if there isfriction and it does -500J of work on hi..
you place a magnetic compass on a horizontal surface allow the needle to settle into its equilibrium position and then
Assuming constant temperature, as a helium balloon rises through the air: (Select all that apply.) The air pressure inside the balloon decreases. The air pressure outside the balloon decreases. The air pressure outside the balloon increases. The air ..
Length A is measured to be 7.5cm±0.3 cm and length B is 7.0cm±0.6cm. What is the difference between the two lengths, LB - LA
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