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A box of mass 8.0 kilogram is accelerated from rest across a floor at a rate of 3.0 m/s for 6.0 s. Obtain what is the net work done on the box?
A car is traveling north at 17.7m/s. After 12s its velocity is 14.10m/s in the same direction. Find the magnitude and direction of the car's average acceleration.
A 100 N force has a horizontal component of 60 N and a vertical component of 80 N. What is the cart's final velocity
Electrons from a heated filament pass through a hole in the cathode. They are then accelerated between the cathode and anode. what direction are the electrons deflected
A 202 kg cart runs into the rear end of a 103 kg cart that is stationary. what is the speed of the cart before collision
A Light from a 556-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56) at an angle of 51°. What is the angle of reflection (in degrees) from the surface
A car of mass 1530 kg traveling at 24 m/s is at the foot of a hill that rises 110 m in 3.8 km. Find the average power delivered by the car's engine
Four identical metallic objects carry the following charges: +6.6 µC, +3.4 µC, -7.0 µC, and -2.0 µC. What is the final charge on each object
Sarah throws a ball too hard so it is over Julie's head when it reaches Julie's horizontal position, What is the speed of the ball when it leaves Sarah's hand
Consider the infinite square well of width a. V(x) is infinite out side well and zero inside. Discuss the importance of the quantum effects for both of these systems. Use the uncertainty principle to estimate the velocities of the electron and the me..
neutrons are slowed down to thermal energies in a 11 mixture of h2o and uranium 4 atom 235-u 96 atom 238-u. estimate
A spring is attached is attached to the top of a large cylinder. what is the expression for the natural frequency of the oscillation
A 150-? resistor is connected in series with a 0.250-H inductor. The voltage across the resistor is vR=(3.80V)cos[(720rad/s)t]. Derive an expression for the circuit current
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