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A 73.1-kN car is travelling at 59.9 mph when the driver decides to exit the freeway by going up a ramp. After coasting 376 m along the exit ramp the car\'s speed is 26.9 mph, and it is h = 11.3 m above the freeway. What is the magnitude of the average drag force exerted on the car?
A pinhole camera is made from an 82cm -long box with a small hole in one end, how tall will the image of the person on the film be
A car accelerates from rest to a speed of 19.0m/s in 6.00 seconds. If the car weighs 16000N, what average power must the motor produce to cause this acceleration
A flywheel turns through 26 rev as it slows from an angular speed of 1.3 rad/s to a stop. What is its angular acceleration
Suppose that a structure of arbitrary complexity has a number of forces applied to it (at various points) and yet is in static equilibrium. The principle of virtual work allows one to write an equation that relates the applied forces.
A charge of q = +7.50 µC is located in an electric field. The x and y components of the electric field are Ex = 4.80 103 N/C and Ey = 7.40 103 N/C, respectively. (a) What is the magnitude of the force on the charge? (b) Determine the angle that th..
A 50-g block of copper at -15?C is added to 100g of water in a 71-g aluminum cup. The cup and the water have an initial temperature of 4.0?C. Find the equilibrium temperature of the cup
Estimate approximately the angular deflection of the muon's trajectory, given that the rest mass of muon is 100Mev and that the saturation magnetization in iron is equivalent to 1.6 x 10^23 electron moments per cm^3.
An object placed 10.0 cm from a concave spherical mirror produces a real image 8.00 cm from the mirror. what is the position of the image
An electron and a proton are initially very far apart (effectively an infinite distance apart). which is the change in the electric potential energy
A person walks first at a constant speed of 5.10 m/s along a straight line from point to point and then back along the line from to at a constant speed of 2.95 m/s. (a) What is her average speed over the entire trip? (b) What is her average veloci..
A car whose initial speed is 40 m/s undergoes a constant acceleration of -5 m/s2 for 6 s when its brakes are applied. How far does the car travel
A group of hikers hear an echo 2.50 s after they shout. If the temperature is 28°C, how far away is the mountain that reflected the sound wave.
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