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A sphere, with I=2/5 MR2 , rolls without slipping down a ramp of length L inclined an angle (theta) from the horizontal. What is the acceleration of the sphere at the bottom of the ramp.
A particular refracting telescope takes the moon and magnifies the image by a power of 250x with the observer having a relaxed eye, What are the focal lengths of the two lenses
Find the total binding energy for Thorium, 228Th (atomic mass = 228.028715 u)
A jet flying at 109 m/s banks to make a horizontal circular turn.The radius of the turn is 3810 m, and the mass of the jet is2.33*105 kg. Calculate the magnitude of the necessary lifting force. L= ?
A tennis player hit a ball 2.0 m above the ground. The ballleaves his racquet with a speed of 20m/s and an angle of 5.0 degrees above the horizontal. The horizontal distance to the net is 7.0m and the net is 1.0 m high.
The beam emerging from a ruby laser (wavelength 694.3 nm) passes through a circular aperture 4.7 mm in diameter. If the spread of the beam is limited only by diffraction, what is the angular speed of the beam
One mole of oxygen molecules occupies a cubic vessel of side length 10 cm at a temperature of 18 C. Calculate the pressure of the gas on the walls
A steel cable with total length 20m and mass 100kg is connected to two poles. The tension in the cable is 2,000N, and the wind makes the cable vibrate with a frequency of 2Hz. Calculate the wavelength of the resulting wave on the cable.
two point charges attract each other with an electric force of magnitude f. if one charge is reduced to one-third its
A simple Atwood’s machine uses a mass less pulley and two masses m1 and m2. Starting from rest, the speed of the two masses is 8.4 m/s at the end of 7.2 s. At that time, the kinetic energy of the system is 62 J and each mass has moved a distance of 3..
A plucked guitar string produces a sound wave of frequency 440 Hz. What is the wavelength of the sound wave (assume the speed of sound in air is 340 m/s)?
A 6090 kg space probe moving nose first toward Jupiter at 105m/s relative to the Sun fires its rocket engine, What is the final velocity of the probe
Before starting this problem, review COnceptual Example 3. Suppose that hail described there bounces off the roof of the car with a velcity of +15 m/s. calculate the force exerted by the hail of the roof
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