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A box is being pulled by a force at an angle of 30o with respect to the plane. The box weighs 10 N. The magnitude of the pulling force is 50 N. If the box is being pulled with constant velocity, calculate the quantities indicated.
A farsihted man utilizes eyeglasses with a refractive power of 3.71 diopters. Wearing the glasses 0.026 m from his eyes, he is able to read books held no closer than 0.260 m from his eyes.
A crate of mass 12.5 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The pulling force is 100 N parallel to the incline, What is the change in kinetic energy of the crate
a diver springs upward with an initial speed of 1.9 ms from a 2.5 m board.a find the velocity with which he strikes the
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 10.8 kg and 0.00432 m^3. The density of gold is 19 300 kg/m^3, and the density of quartz is 2660 kg/m^3. Find the mass..
A marble has mass .9kg it is released from height=3m down a ramp into a loop-the-loop of radius=1. At the top of the loop-the-loop, what is the force the track exerts on the marble
The escape speed from a distant planet is 30 km/s. If the acceleration of gravity on the planet surface is 12.0 m/s2, What is the radius of the planet
Sources A and B emit long-range radio waves of wavelength 530 m, with phase of the emission from A ahead of that from source B by 90°. The distance rA from A to a detector is greater than corresponding distance rB from B by 110 m. What is the magni..
The electric potential immediately outside another charged conducting sphere is 270 V, and 10.0 cm farther from the center the magnitude of the electric field is 350 V/m. Determine all possible values for the radius of the sphere
What is the resistance of a light bulb that uses an average power of 55 W when connected to a 60Hz power source with a peak voltage of 170 V? What is the resistance of a 80 Wbulb?
q1. if one end of a heavy rope is attached to a light rope and wave is sent down the heavy rope. what would happen to
A piston (with mass M = 2.0 kg) in a car engine is in vertical simple harmonic motion with amplitude A = 5.0 cm. What is the maximum velocity (m/s) of the piston
The kinematics and dynamics of rotation around a fixed axis of a rigid body are mathematically much simpler than those for free rotation of a rigid body; they are entirely analogous to those of linear motion along a single fixed direction, which is n..
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