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A light, inextensible cord passes over a light, frictionless pulley with a radius of 4.2 cm. It has a(n) 19 kg mass on the left and a(n) 5.3 kg mass on the right, both hanging freely. Initially their center of masses are a vertical distance 4.4 m apart.The acceleration of gravity is 9.8 m/s2 .
An aricraft carrier has a mass of 8 x 10^7 kg and can cruise at 60 km/h. What is the work required to stop it
Two students with vibrating 440Hz tuning forks walk away from each other with equal speeds. How fast must they walk so that they each hear the frequency of 433 from the other fork.
three point charges are on the x axis q1 6 micro coulomb at x 0 q2 4 micro coulomb at x 2 m and q3 -1.5 micro
Running on a treadmill is slightly easier than running outside because there is no drag force to work against. Determine the drag force on the runner during the race
The tub of a washer goes into its spin cycle, starting from rest and gaining angular speed steadily for 9.00 s, how many revolutions does the tub turn while it is in motion
The muon is an unstable particle that spontaneously decays into an electron and two neutrinos. If the number of muons at t 0 is N0, the number at time t is given by N N0et/, where is the mean lifetime, equal to 2.2 s.
A 2.50mL syringe has an inner diameter of 6.00mm , a needle inner diameter of 0.290mm , and a plunger pad diameter of 1.2 cm, What is the minimum force the nurse needs to apply to the syringe
DEFINE the terms " Cofficient of Static Friction" and " Cofficient of Kinetic Friction, The force probe reading will represent the frictional force
A sledge loaded with bricks has a total mass of 18.1 kg and is pulled at constant speed by a rope. what is the energy lost due to friction
The space shuttle makes 1 revolution around the Earth in 1.5 hours when it is in an orbit 200 km above the Earth's surface. what is the radius of the new orbit
They want to dock, which means they have to arrive at the same position at the same time with zero velocity. (a) What should the initial velocity of the second spacecraft be? (b) Illustrate what should be its constant acceleration?
Light from a laser strikes a diffraction grating that has 5 300 grooves per centimeter. The central and first-order principal maxima are separated by 0.488 m on a wall 1.76 m from the grating.
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