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A car of 1200 kg mass is traveling uphill at an angle of 20 degrees at a constant speed.
A) What is the magnitude of the normal force on the car?
B) What is the magnitude of the force the tires are using to push the car uphill?
C) What is the weight of the car?
The speed of light in a certain piece of clear plastic is 1.87 108 m/s. A ray of light strikes the plastic at an angle of 17°. At what angle is the ray refracted
A 4000 kg lunar lander is in orbit 50 km above the surface of the moon. How much work must the thrusters do
On dry land, an athlete weighs 63.7kg . The same athlete, when submerged in a swimming pool and hanging from a scale, Determine the athlete's percent body fat
Assume we have an infinitely long wire carrying a current of 2-A. It is bent into an L-shape extending into positive infinities along the x- and y- axes. Find out the magnitude of the magnetic field at a point P with coordinates (0.3 m, 0.3 m).
A coil is placed in a changing magnetic field and an emf is induced. What happens to induced emf if the rate of change of magnetic field quadruples.
Life scientists use ultracentrifuges to separate biological components or to remove molecules from suspension. Samples in a symmetric array of containers are spun rapidly about a central axis.
A weather vane initially at rest has a moment of inertia of 0.125 kg · m2 about its axis of rotation. Find the angular velocity of the weather vane just after it is struck
discussion topic 11.discuss how differentiation and integration theorems simplify analysis of time-based
The spheres are given the same electric charge Q and it is found that they come to equilibrium when each string is at an angle of 5 with the vertical. Each string is 30 cm long.
A battery of internal resistance r = 0.2 ohms and emf = 12.0 V is connected to a device with resistance R = 6.0 ohms. What is the rate of heat generated in the battery
A 2 kg mass is placed at rest against a spring of spring constant 5 N/m, which is compressed by 10 cm from its equilibrium position. compute the amount of potential energy stored in the spring
A spool of wire of mass 6.9 kg and radius 0.28 m is unwound under a constant wire tension 15 N. Assume the spool is a uniform solid cylinder that rolls without slipping. Find the friction force on the bottom of the spool
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