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A 200kg sleigh is pulled along a ramp with a constant speed. the slope of the incline is 30degree. The sleigh is pulled through a distance of d=20m. The snowy slope is so slippery that consider it to be frictionless. What is the net work done on the sleigh?
when the cylinder is fully immersed does the buoyant force acting on it depend on how far below the surface of the
During simple harmonic motion, is there a time at which the position, velocity, and acceleration all have the same sign (+,-, or 0)? Explain?
An archer pulls her bowstring back 0.360 m by exerting a force that increases uniformly from zero to 230 N. What is the equivalent spring constant of the bow? (N/m) How much work does the archer do in pulling the bow? (J)
The temperature of the surface of the sun is 6000K and its radius is 696,000Km. How much energy is the sun radiating into space per second
A flywheel of mass 187 kg has an effective radius of 0.63 m (assume the mass is concentrated along a circumference located at the effective radius of the flywheel). What is the applied torque on the flywheel
a metal ball with a mass of 4.01middot10-6 kg and a charge of 4.99 mc has a kinetic energy of 7.95middot108 j. it is
A 12kg projectile is launched with an initial vertical speed of 20m/s. It rises to a height of 18m above the launch point. How much work is done with the dissipative resistive force on the projectile during this ascent?
Calculate the capacitance of the device. What potential difference between the spheres results in a 4.00 µC charge on the capacitor?
Two diamonds begin a free fall from rest from the same height, 1.1 s apart. How long after the first diamond begins to fall will the two diamonds be 18 m apart?
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 8 m and, in starting, rotates according to Theta = 0.30 t 2. what is the magnitude of the astronaut's linear speed
A sample of neon gas has its volume doubled and its temperature held constant. What will be the new pressure relative to the initial pressure? A quantity of steam ( 800 g) at 115oC is condensed, and the resulting water is frozen into ice at 0oC. How ..
Sources A and B emit long-range radio waves of wavelength 330 m, with the phase of the emission from A ahead of that from source B by 90°. find the magnitude of the phase difference at the detector
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