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A solid cylinder of diameter 6.52 centimeter and mass 12.18 kilogram is rolling without slipping on a level surface. The speed of the center of mass is 5.49 cm/s. Determine what is its kinetic energy in Joules?
Yellow light of vacuum wavelength 589 nm travels at 1.942 x108 m/s through quartz. Quartz is a nonmagneticdielectric. Calculate its permittivity. Find the electric field amplitude of a linearly-polarizedelectromagnetic wave of intensity 12.0 GW/m2..
Four equal positive point charges, each of charge 6.8 C , are at the corners of a square of side 9.2 cm. What charge should be placed at the center of the square so that all charges are at equilibrium? Is this a stable or unstable equilibrium in the ..
Hooke's law describes a certain light spring of unstretched length 33.0cm. When one end is attached to the top of a door frame, and a 6.4kg object is hung from the other end, the length of the spring is 48cm.
1. if the total electric current reaching the earths surface is nearly constatnt at 1000 a approximately how much
the barrel of a ri?e has a length of 0.942 m. a bullet leaves the muzzle of a ri?e with a speed of 580 ms. what is the
After a day of testing race cars, you decide to take your own 1410 kg car onto the test track. While moving down the track at 10m/s, you uniformly accelerate to 31m/s in 10 s. What is the average net force that you have applied to the car througho..
A plastic ball in a liquid is acted upon by its weight and by a buoyant force. The weight of the ball is 4.8N. The buoyant force has a magnitude of 6.5N and acts vertically upward. External force acting on the ball maintains it in the state of res..
A car moving at stable speed travels halfway around a circular track that has a diameter of 1.0 kilometer. Determine the car tangential speed
A baseball is thrown with an initial velocity of 20 m/s along the horizontal axis and 15 m/s along the vertical axis. The ball soon reaches the highest point, what is the speed at the point? (ignore air friction) Can you give me an explanation as to ..
It is desired to cool iron parts from 500°F to 100°F by dropping them into water that is initially at 55°F. how many kilograms of water are needed per kilogram of iron
two parallel plates are held at potentials of 189.0 v and -98.0 v. the plates are separated by 1.19 cm. a find the
question the intensity 18m from a source of sound is measured to be 10-4wm2.a determine the intensity of the sound in
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