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A ball of mass 0.65 kg is fired with velocity 120 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to friction. What fraction of the ball's initial kinetic energy is stored in the spring?
A sled is being pulled across a horizontal patch of snow. Friction is negligible. By what percentage would the sled's kinetic energy have increased
An avalanche of ice and snow of mass 1 800 kg slides a vertical distance of 160 m down a mountainside. what is the change in entropy of the universe
A block m = 0.5 kg with an initial temperature of 22 Co slides along with an initial velocity (vi) when it encounters a rough surface, what is the initial velocity of the block
A piece of charcoal used for cooking is found at the remains of an ancient campsite. Find the age of the charcoal in years
Water flowing through a garden hose of diameter2.70cm fills a20.0-L bucket in1.30min. What is the speed of the water leaving the end of the hose
What is true of the net force when 3 or more forces are in a state of equilibrium, and If a force (F) make an angle (theta) with the x-axis, what are the formulas used to the x and y components of this force
a thin converging lens is found to form an image of a distant building 24 cm from the lens. if an object is placed 16 cm from the lens, how far from the object will the image be
A 24V battery is connected in series with a resistor, R=4 ohms and an inductor L=2H. What is the energy stored in the inductor
For the infinite square well problem an electron spends 40% of its time in the n=3 state and 60% of its time in the n=5 state. What is the average energy of the electron
find the lowest frequency that make constructive interference.
Three resistors, R1 = 17? , R2 = 52? , and R3=R, are connected in series with a 24.0 Vbattery, find the potential difference across each resistor
Suppose a diving board with no one on it bounces up and down in a simple harmonic motion with a frequency of 5.00 Hz. What is the frequency of the simple harmonic motion
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