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69 J of work are needed to stretch a spring from 1.4 m to 2.9 m from equilibrium. What is the value of the spring constant?
If the translation rms speed of the water vapor molecules in air is 703 m/s, what is the translational rms speed of the carbon dioxide molecules in the same air? Both gases are at the same temperature.
In a historical movie, two knights on horseback start from rest 74 m apart and ride directly toward each other to do battle. How far from Sir George's starting point do the knights collide
A block of mass 0.6 kg is moving up a 40 degree inclined plane at a speed of 2 m/s. how far up the plane will the block go before stopping
When a golfer tees off, the head of her golf club which has a mass of 280 g is traveling 58 m/s just before it strikes a 46-g golf ball at rest on a tee. determine the speed of the golf ball just after impact
A golf ball of mass 0.045 kg is hit off the tee at a speed of 33m/s. Find the average force exerted on the ball by the golf club
In compressing the spring in a toy dart gun, 0.9 J of work is done. When the gun is fired, the spring gives its potential energy to a dart with a mass of 0.05 kg, What is the dart's speed
Transverse waves travel at 150 m/s on a wire of length 80 cm that is under a tension of 550 N. What is the mass of the wire
A 48 kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.0 m/s. determine her altitude as she crosses the bar
A bungee jumper undergoes simple harmonic motion with amplitude 4.6m and frequency 0.145Hz, Determine the bungee jumper's velocity at 1.0 s
To separate two pieces of paper whose area is 10 cm by 10 cm, you blow across them with an air speed of 2.40 m/s. What is the resulting force on each
Calculate the work done by 10 moles of an ideal gas in each step of the cycle below. The gas is initially in state A with pressurePA = 6 × 104 Pa and volume VA = 0.15 m3. It expands isobarically to state B with volume VB = 0.30 m3.
A person in a rocking chair completes 15 cycles in 17s, What are the period of the rocking
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