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A 8.5 kg block moves at 9 m/s to the right while a 8.5 kg block moves at 10 m/s to the right. The total kinetic energy of the two block systems is 769.25J Velocity of the center of mass is 9.5m/s
Find the kinetic energy of the center of mass.
Find the kinetic energy relative to the center of mass.
A student uses an audio oscillator of adjustable frequency to measure the depth of a water well. He reports hearing two successive resonances at 50.5 Hz and 59.5 Hz. How deep is the well
A proton initially at rest is accelerated by a uniform electric field. The proton moves 6.48 cm in 1.20 10-6 s. Find the voltage drop through which the proton moves
A parallel combination of a 1.27 uF capacitor and a 2.67 uF one is connected in series to a 4.85 uF capacitor. FInd the charge of each capacitor
An object is thrown upward with a speed of 14 m/s on the surface of planet X where the acceleration due to gravity is 3.5 m/s2
The intensity of the electromagnetic radiation from the Sun when it reaches the Venus' surface is approximately 2600 W/m2. What is the amplitude of the associated magnetic field
Male mosquitoes in the mood for mating find female mosquitoes of their own species by listening for the characteristic "buzzing" frequency of the female's wing beats
A 120-V(RMS) space heater has two power settings: 750 W and 1500 W. What is the resistance of the lower power setting
The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. Evaluate how far does he slide?
In a model AC generator, a 503 turn rectangular coil 5.0 cm by 21 cm rotates at 120 rev/min in a uniform magnetic field of 0.59 T. What is the maximum emf induced in the coil
Some bacteria are propelled by biological motors that spin hair-like flagella. How long does it take the motor to make one revolution
Your friend observes an artificial satellite orbiting the earth. He estimates it is at an altitude h = 938 km above the earth's surface and has a mass m = 3500 kg. What is the period (s) of the satellite's motion
A double speed trap is set up on a freeway. One police cruiser is hidden behind a billboard, and another is some distance away under a bridge. As a sedan passes by the first cruiser, its speed is measured to be 99.7 mph.
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