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A 16.0-kg enters a water slide that has a entrance 2.50 m above the ground exit. When the child exits, her speed is 3.50 m/s. What is the potential energy of the child when entering the slide? How much energy is lost due to friction during the water slide trip? If the coefficient of kinetic friction is 0.40, and the entire slide took a time of .50 s, then how much power did friction consume during the slide?
A 750 g aluminum pan is removed from the stove and plunged into a sink filled with 10.0 liters of water at 20.0° C. What was the original temperature of the pan
question the mean diameters of x and y two planets in the same solar system are 6.4 x 103 km and 1.2 x 104 km
You are standing on the surface of a small spherical moon whose radius is 6.30 x 10^4 m and mass of 8.00 x 10^18kg. What maximum height above the surface of the Moon will the rock reach
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.65 105 Pa and the pipe radius is 2.80 cm. Find the speed of flow in the upper section
When a carpenter shuts off his circular saw, the 10.0 inch diameter blade slows from 4250 rpm to 0.00 in 1.00 s. What is the distance traveled by a point on the rim of the blade during the deceleration
A vector A has a magnitude of 52.6 m and points in a direction 19.4° below the positive x axis. calculate the magnitude of the vector C
A 599 Hz sound wave travels through a substance. What is the speed of sound in the substance
A marble slides without friction in a vertical plane around theinside of a smooth, 21 {\rm cm}-diameter horizontal pipe. The marble's speed at the bottom is 4.5 {\rm {m}/{s}} this is fast enough sothat the marble makes a complete loop, never losin..
Three charges are arranged as shown in the figure below. Find the magnitude and direction of the electrostatic force on the charge q = 5.22 nC at the origin. (Let r12 = 0.245 m.)
A soccer ball, which has a circumference of 70.0 , rolls 11.0 in 3.30. What was the average angular speed of the ball during this time
Calculate the hydrostatic difference in blood pressure between the brain and the foot in a person of height 1.83 m. The density of blood is 1060 kg/m3
On the planet Arrakis, a male ornithoid is flying toward his stationary mate at 25 [m/s] while singing at a frequency of 1200 [Hz]. what is the speed of sound in the atmosphere of Arrakis
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