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if the water temperature in the insulated container is found to have increased 20degc after 200 descents of the falling
is the total translational kinetic energy of the molecules in the ball higher lower or the same as when the ball was at
if a rubber ball of mass 10 kg is dropped from a height of 20 m and rebounds on the first bounce to 075 of the height
a string of length l is clamped at both ends when it is plucked it oscillates by a wavelength that is 2l3 consider the
light of wavelength 687 nm is incident on a single slit 075 mm wide at what distance from the slit must a screen be
1 an object placed 20 cm from a concave mirror forms an image that is three times as large as the object on a screen
a single slit that is 2600 nm wide forms a diffraction pattern when illuminated with monochromatic light of 420-nm
the natural state of hydrogen at a temperature of -269 degrees celsius is a solid the closest distance among the
a jet aircraft flies over you in straight level flight at a steady speed the whine of the engine is audible to you
a moving sidewalk in an airport terminal building moves at a speed of v0 and is of length l a woman steps on at one end
a vertical electric field of magnitude 225104 nc exists above the earths surface on a day when a thunderstorm is
two small silver spheres each with a mass of 109 g are separated by 111 m compute the fraction of the electrons in one
an uncharged nonconductive hollow sphere of radius 120 cm surrounds a 140 microc charge located at the origin of a
a particle with a charge of -600 nc is placed at the center of a non conducting spherical shell of outer radius 290 cm
estimate the speed at which the drag on a 150 g steel ball becomes equal to about one percent of its weight the density
a docking shuttle requires to decelerate at a very specific rate given by abt2 if the shuttle is moving at 800ms and
two pachycephalosauruses start from rest separated with 59 m they then charge toward each other one has acceleration 19
a drone flies 120 m at 27 north of east then turns and flies 680 m at 23 west of north then turns again and flies 670 m
the distance among the objective and eyepiece lenses in a microscope is 22cm the objective lens has a focal length of
according to keplers 3rd law how would a planets orbital period change if the planets1 mass halved2 eccentricity
the potential dissimilarity between the plates of a capacitor is 220 v midway among the plates a proton and an electron
if a satellite orbits very near the surface of a planet with period t derive an algebraic expression for the density
the position of a particle moving along the x-axis depends on the time according to the equation x ct2 - bt3 where x
a positive charge q1 is located to the left of a negative charge q2 on a line passing during the two charges there are
an electron in a cathode-ray-tube crt accelerates uniformly from 200104 ms to 600106 ms over 100 cma what is its