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You are in your car driving on a highway at 25m/s when you glance in the passenger side mirror (a convex mirror with radius of curvature 150 cm) and notice a truck approaching. If the image of the truck is approaching the vertex of the mirror at a speed of 1.5mn/s when the truck is 2.0 m away, what is the speed of the truck relative to the highway?
Assume a planet is a uniform sphere of radius R that (somehow) has a narrow radial tunnel through its center. Also assume we can position an apple anywhere along the tunnel or outside the sphere.
A 15 kg block is accelerated at 1.7 m/s2 up a frictionless plane inclined at 5.0° to the horizontal, with the speed increasing from 10 m/s to 35 m/s. What is the average rate at which energy is transferred to the block
Three charged particles are arranged into a triangle. The charge on the particle located (4.0cm, 3.0cm) is 5nC. The charge on the particle at the origin is -3nC, and the change on the particle located at (4.0cm, 0cm) is +6nC. Determine the magnitu..
An unmarked police car traveling a constant 95 is passed by a speeder traveling 115 . Precisely 1.00 after the speeder passes, how much time passes before the police car overtakes the speeder
Engineers have developed a bathyscaph that can reach ocean depths of 5.3 mi. what is the absolute pressure at that depth
An electrical motor spins at a constant 2675 rpm. If the armature radius is 3.49 cm, what is the acceleration of the edge of the rotor
a traveling wave on a string is given byyxt 2.0cmsin2p 8.33m-1x 440 s-1t .afind its wavelength frequency speed and
A gasoline engine absorbs 1900 J of heat and performs 530.0 J of mechanical work in each cycle. What is the efficiency of the engine
The National Aeronautics and Space Administration (NASA) studies the physiological effects of large accelerations on astronauts. At what speed must the chamber move so that an astronaut is subjected to 2.48 times the acceleration due to gravity
The polarizing direction of the first sheet is parallel to the x axis, that of the second sheet is at an angle of 30 degree counter-clockwise from the y axis, and that of the initial third sheet is at an angle of 60 degree counter-clockwise from t..
A 142Kg create is placed on an inclined ramp. when the angle the ramp makes the horizontal is increased to (alfa), the crate beging to slide downward.
A straight wire segment 4 m long makes an angle of 30° with a uniform magnetic field of 0.37 T. Find the magnitude of the force on the wire
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