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Consider a 3 kilogram copper cube and a 3 kilogram copper ball submerged in a liquid. Find the buoyant forces acting on these two bodies be the same or different?
Suppose you could pack neutrons (mass = 1.67 × 10-27 kg) inside a small ball of radius 0.033 m in the same way as neutrons and protons are packed together in the nucleus of an atom. Approximately how many neutrons would fit inside the ball
Calculate the expectation value of the potential energy of the H atom with its electrons in the 1s orbital. Compare this with the total energy.
A 23 bullet traveling 240 penetrates a 4 block of wood and emerges going 170. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges.
a planet with a radius of 6.00 x 10^7 m has a gravitational field of magnitude 30.0 m/s2 at the surface. what is the escape speed from the planet
A catapult on a cliff launches a large round rock towards a ship on the ocean below. Calculate the speed at which the rock is launched
a string with both ends held fixed is vibrating in its third harmonic. the waves have a speed of 195 and a frequency of
q1. an ambulance travelling at 39 ms approaches a car heading in the same direction at a speed of 19 ms. the ambulance
A uniform rod of mass M and length L can pivotfreely (i.e., we ignore friction) about a hinge attached to a wall,as in Fig. 8–54. The rod is held horizontally and thenreleased.
Compute the mass of a chlorine anion of charge 3.20 x 10-19 C if it follows a circular path of radius 0.862 cm after it has been accelerated during a potential difference of 250V and the exposed to a uniform magnetic field of strength 3.00 T
A crate of mass 10.3 kg is pulled up a rough incline with an initial speed of 1.51m/s. The pulling force is 97N parallel to the incline, which makes an angle of 20.3 ° with horizontal. The coefficient of kinetic friction is 0.400, and the crate is..
A 3.92 m long rod has mass 1.04 kg which is uniformly distributed along the rod. what is the magnitude of the angular acceleration of the rod
two positive point charges each 16 uc lie along the x-axis at x -0.12m and x 0.12m.a. find the electric field at the
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