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A rubber ball (1kg ) falls from a height of 10 m and collide elastically with the floor what is the velocity of the ball as it rebounds from the floor
A tiny steel cube is suspended in water by a string. If the lengths of the sides of the cube are very small, how would you compare the magnitudes of the pressures on the top, bottom, and side surfaces of the cube?
In the rectangle in the drawing, a charge is to be placed at the empty corner to create the net force on the charge at corner A point along the vertical direction. What charge (magnitude and algebraic sign) should be placed at the empty corner?
Based upon these calculations, is it reasonable to assume that essentially any molecule a photon encounters in the body will be in its ground vibrational state? Its ground electronic state? Its ground rotational state?
A transverse electromagnetic plane wave with a frequency of 2.84 MHz travels directly away from you (- z direction). At time t = 0, your magnetic field detector measures a magnetic field of 4.57 × 10-8 Tesla pointing down (- y direction) that further..
A pair of eyeglass frames are made of an epoxy plastic (coefficient of linear expansion = 1.30 10-4°C-1). To what temperature must the frames be heated
Physicists define the center of mass of two objects (#1 and #2) with masses m1 and m2 at locations x1 and x2 to be xCoM = m1x1 + m2x2 m1 + m2 The velocity of the center of mass is the derivitive with respect to time of the xCoM. Take the derivativ..
A man stands on the roof of a building of height 16.8m and throws a rock with a velocity of magnitude 31.8m/s, Calculate the magnitude of the velocity of the rock just before it strikes the ground
A solar flare blowing out from the sun at 0.90 c is overtaking a rocket as it flies away from the sun at 0.60 c. with what speed is the flare gaining on the rocket
A parallel plate capacitor with a plate area of 22.0 cm2 and air in the space between the plates, how much work is done
Two particles are at the same point at the same time, moving in the same direction. Par-ticle A has an initial velocity of 7.7 m/sandnan acceleration of 2.5 m/s2. Particle B has an initial velocityof 3.4 m/s and an acceleration of 5 m/s2.
in the bohr model of the hydrogen atom an electron in the 4th excited state moves at a speed of 1.37 105 ms in a
The effectual coefficient of kinetic friction is 0.37. Compute the work done by the man on the piano.
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