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A 5 gram bullet is fired horizontally into a 15 kg block of wood suspended by a rope from the ceiling. The block swings ina n arc, rising 8 mm above its lowest point. What is the kinetic energy of the bullet just before it hits the block?
when a 0.350 kg mass is hung on the end of a spring, the spring is observed to stretch by an amount of 12.0 cm in coming to a new equilibrium position. what is the force constant of the spring?
A positively charged particle moves in the positive z-direction. The magnetic force on the particle is in the positive y-direction. What can you conclude about the x-component of the magnetic field at the particle’s position? A. Bx > 0 B. Bx = 0 C. B..
a car of 1200 kg travels east (call it +x) at 24 m/s while a truck of 2200kg travels north (call it +y) at 19 m/s . they collide and stick together. What is the momentum in the sysem
You can ignore friction between the sled and surface of the pond. Use the work-energy theorem to find the speed of the sled at 3.00 m.
A satellite is in a circular orbit 1000 km above the Earth's surface; i.e., it moves on a circular path under the influence of nothing but the Earth's gravity. Find the time it takes to complete one orbit around the Earth
What is an acceleration of the particle at the instant
A 8.7cm diameter circular loop of wire is in a 0.50T magnetic field. The loop is removed from the field in 0.28 sec, What is the average induced emf
A transverse wave on a string is described by the wave functionA transverse wave on a string is described by the wave function y=(0.120m)sin((pi*x)/8 +4*pi*t). Determine the transverse speed and acceleration
A cylindrical air duct in an air conditioning system has a lengthof 5.5 m and a radius of 7.2 x 10^-2 m. A fan forces air ( n = 1.8x 10^-5 Pa·s) through the duct, such that the air in a room(volume = 280 m^3) is replenished every ten minutes. Dete..
What vertical height does block reach above its starting point. What speed does it have when it slides back down to its starting point.
q1. a rectangular container measuring 23 cm 51 cm 65 cm is filled with water. what is the mass of this volume of water
A mixture of iron and an unknown material is bombarded with electrons. What is the unknown material (use chemical symbol)
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