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Two particles move along an x axis. The position of particle 1 is given by x = 9.00t^2 + 6.00t + 5.00 (in meters and seconds); the acceleration of particle 2 is given by a = -8.00t (in meters per seconds squared and seconds) and, at t = 0, its velocity is 20.0 m/s. When the velocities of the particles match, what is their velocity?
A rocket with a mass of 5 x 10^5 kg has a total energy that is 6 times its rest energy. What is the relativistic kinetic energy of the rocket
A 0.5 kg ball is thrown straight up in the air with initial speed of 40 m/s. What is the maximum height reached by the ball
When the displacement of a mass on a spring is 0.689 of the amplitude of its oscillation, what fraction of the mass's energy is kinetic energy
A projectile (mass = 0.235 kilogram) is fired at and embeds itself in a target (mass = 1.26 kilogram). Obtain what percentage of the projectile's incident kinetic energy does the target (with the projectile in it) carry off after being struck
An insect 1.1 tall is placed 1.3 beyond the focal point of the objective lens of a compound microscope. The objective lens has a focal length of 17 , Where is the image formed by the objective lens
A father pulls his young daughter on a sled with a constant velocity on a level surface a distance of 10m. how much work does the father do
A small 12.8g plastic ball is tied to a very light 26.9cm string that is attached to the vertical wall of a room. Find the magnitude and direction of the electric field in the room
A uniform electric field exists in the region among two oppositely charged plane parallel plates. A proton is released from rest at the surface of the positively charged plate and strikes the surface of the opposite plate, 1.65cm distant from the fir..
A narrow glass tube, open at one end, closed at the other, is 40cm long. Determine the frequency of the moving sound source
A cart of mass m1=0.5 kg moves with a velocity of 0.9 m/s to the right on a frictionless track. What is the velocity of each cart after the collision
The drawing shows two copper [? = 17 × 10-6 (C°)-1] rods of different lengths mounted on one side of an immovable wall. What change in the gap occurs when the rods are heated to 77 °C
As part of a safety investigation, two 1200 {rm kg} cars traveling at 24 {rm m/s} are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.80 {rm s} to stop, and (b) car that hits a..
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