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A small 11.0 g- bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. The other end of the bar pivots about a nail driven into the table and can rotate freely, without friction. The bar has mass 70.0g and is 120 cm in length. The bug jumps off in the horizontal direction, perpendicular to the bar, with a speed of 15.0 cm/s relative to the table.
What is the angular speed of the bar just after the frisky insect leaps? rad/s
Atoms in a solid are in continuous vibrational motion due to thermal energy, What is the approximate period of oscillation of a typical atom
an auditorium measures 40.0m X20.0 m X 12.0 m. The density of air is 1.20 kg/m^3. find the weight of air in the room
The medical profession divides the ultraviolet region of the electromagnetic spectrum into three bands: UVA (320-420 nm), UVB (290-320 nm), and UVC (100-290 nm). Find the frequency range associated with UVB radiation
during heavy rain a section of a mountainside measuring 3.8 km horizontally perpendicular to the slope 0.44 km up along
Two spheres are launched horizontally from a 1.10 {rm m} high table. Sphere A is launched with an initial speed of 5{rm m/s}. Sphere B is launched with an initial speed of 3.0 {rm m/s}.
What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to five before coming to rest momentarily.
A telephoto lens consists of a converging front lens of focal length f1 and diverging back lens of focal length f2 separated by a distance d, Compute the effective focal length of the lens system
A student sits on a rotating stool holding two 3.6-kg objects. When his arms are extended horizontally, Find the new angular speed of the student
A dock worker applies a stable horizontal force of 79.0 {rm N} to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 14.0 {rm m} in the first 6.00 {rm s}.What is the mass of the bl..
q1. a 2700-kg satellite is in a circular orbit around a planet. the satellite travels with a constant speed of 6270 ms.
A 10,000 kg railroad car is rolling at 2 m/s when a 400 kg load of gravel is suddenly dumped in. What is the railroad cars speed just after the gravel is dumped in.
A laser beam is incident on a 45°-45°-90° prism perpendicular to one of its faces, Find the index of refraction of the prism
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