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A box of mass 0.450 kg slides down a very smooth (frictionless) ramp which is inclined at an angle of 40.0o above the horizontal. What is the acceleration of the box down the ramp?
A 1.5 kg box moves back and forth on a horizontal surface with a coefficient of kinetic friction 0.18 between two different springs, 0.83 m apart. The box is initially pressed against the stronger spring (spring constant, k=32N/cm), compressing i..
q1. a football player runs directly down the field for 16 m before turning to the right at an angle of 33 from his
A train traveling east at a speed of 25.0 m/s moving directly awayfrom a stationary observer. a strong, steady wind of 20.0 m/s isblowing from east to west. At a distance of 50.0 meters away fromthe observer, the train's whistle is blown and the o..
A 2.10 sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as the heart beats. The reflected sound is then mixed with the transmitted soun..
One solenoid is centered inside another. The outer one has a length of 54.0 cm and contains 6800 coils, What is the mutual inductance of these solenoids
A geode is a hollow rock with a solid shell and an air-filled interior. Suppose a particular geode weighs twice as much in air as it does when completely submerged in water. what fraction of the geode's volume is hollow
In coming to a stop, a car leaves skid marks 82m long on the highway. Assuming a deceleration of 6m/s2, estimate the speed of the car just before braking.
Describe the additional assumptions , conditions ,and steps required to derive the Navier-Stokes Equations from the momentum equations. Use as little mathematics as possible.
Unpolarized light of intensity I0 is incident on the following arrangements of polarizing sheets. The first polarizer is oriented vertically; the second is oriented so it makes an angle of 30o by the vertical; the third and last polarizer makes an an..
A concrete slab is 9.7 cm thick and has an area of 4.6 m^2. What minimum power must be supplied to the coils to maintain a temperature difference of 17.3 Degrees C between the bottom of the slab and its surface
An outfielder throws a 0.150-kg baseball at a speed of 22.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball at the highest point of its motion
The center of a 1.40km diameter spherical pocket of oil is 1.5 km beneath the Earth's surface.Estimate by what percentage directly above the pocket of oil would differ from expected value of g for a uniform Earth? Assume the density of oil is 8.0 ..
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