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A group of students perform the same "Conservation of Mechanical Energy" experiment that you performed in lab by allowing a solid sphere and then a solid cylinder to roll down the ramp. The solid sphere was released from a height of 13.7 cm. From what height hcylinder should the solid cylinder be released so that it has the same speed as the solid sphere when it reaches the bottom of the ramp?
A rotating fan completes 1200 revolutions every minute. Consider the tip of a blade, at a radius of 0.11 m. Through what distance does the tip move in one revolution? What is the tip's speed
A small monkey is traveling along a branch, What is the max speed of the monkey during this interval? Show all calculations
A jet with mass m = 130000.0 kg jet accelerates down the runway for takeoff at 1.5 m/s2. What is the net horizontal force on the airplane as it accelerates for takeoff
Visitors at a science museum are invited to sit in a chair to right of a full-length diverging lens (f1 = -3.06 m) and observe a friend sitting in a second chair, 1.84m to the left of the lens.
A net force of 19 newtons is applied horizontally to a 10. kilogram block resting on a table. What is the magnitude of the acceleration of the block
A solenoid (coil) has a radius of 7.2 cm, a length of 31.5 cm, and has 380 turns of wire. A current of 350 mA runs through the coil. Calculate the field strength inside the coil
Another particle, of mass 7.4 10-27 kg, moves along the positive x-axis with a speed of 4.0 106 m/s. (Assume that mass is conserved.) Evaluate the third particle's speed. What is the direction of motion?
What is coefficient of friction between chair and floor
As you stand by a railroad track a train passes with its whistle blowing. As it passes, you hear a frequency shift equal to 24% of the frequency of the whistle. How fast is the train moving. Express your answer in km/hr. (Speed of sound is 331..
A 0.07 kg bullet traveling at 599 m/s hits a 6.7 kg block of wood, What is the velocity (speed)of the wood block immediately after the bullet hits it
Consider a balloon filled with helium gas at room temperature (T = 289 K) and atmospheric pressure. Calculate the average de Broglie wavelength of the helium atoms
An athlete executing a long jump leaves the ground at a 20° angle and travels 6.30 m. how much longer would the jump be
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