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A girl and her bicycle have a total mass of 35 kg. At the topof a hill her speed is 5 m/s. The hill is 14 m high and 100 mlong. If the force of friction as she rides down the hill is 17 N, what is her speed at the bottom? (answer in m/s)
The following charges are located inside a submarine: 2.80 µC, ?9.00 µC, 27.0 µC, and ?76 µC. Calculate the net electric flux through the hull of the submarine
After falling from rest from a height of 35 m, a 0.45 kg ball rebounds upward, reaching a height of 25 m. If the contact between ball and ground lasted 1.8 ms, illustrate what average force was exerted on the ball?
A 2.0 kg cart has a spring with k = 5000 N/m attached to its front, parallel to the ground. What is the speed of each cart after the collision
A monkey shows symptoms of being under the influence of too much physics. Specifically, What is the final angular speed of the monkey's head
The pilot of an airplane traveling 190 wants to drop supplies to flood victims isolated on a patch of land 160 below.The supplies should be dropped how many seconds before the plane is directly overhead
he flux passing through a part of the surface of a sphere, of area 0.010 m^2 is 4.0 (N/C)·m^2. Determine the charge enclosed by the sphere
The figure shows a closed Gaussian surface in the shape of a cubeof edge length 2.7 m, with one cornerat x1 = 4.6m,y1 = 4.5 m. Thecube lies in a region where the electric field vector is givenby = -2.8 -4.2 y2 +2.2 N/C, with y in meters. What is the ..
A test charge of +2*10^-7 C is located 5cm to the right of a charge +1*10^-6 C and 10 cm to the left of a charge -1*10^-6 C. The three charges lie on a straight line
questiona status newtons first law of motion. b a 2-kg object is affecting horizontally with a speed of 4 ms. how much
In what direction should the pilot travel in this direct flight. Find out the distance she walks.
A ball is thrown straight upward and reaches the top of its path in 1.71 s (before it starts to come back down). A second ball is thrown at an angle of 38.2 degrees with the horizontal. At what speed must the second ball be thrown so that it rea..
The position of an object as a function of time is given by , where is a constant. Find an expression for the instantaneous velocity
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