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In a television set, electrons are accelerated from rest through a potential difference of 15 kV. The electrons then pass through a 0.37-T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum magnetic force that an electron can experience.
Two identical metallic blocks resting on a frictionless horizontal surface are connected by a light metallic spring having a spring constant k as shown in the figure and an unstretched length Li
A lead ball is dropped into a lake from the diving board 30 m above the water. After entering the water, it sinks to the bottom with the constant velocity equal to velocity with which it hit the water. The ball reaches the bottom 10 s after it is ..
The bar is held by a cord that makes a 90? angle with respect to bar and 50 ? with respect to wall. Illustrate what is the magnitude of the horizontal force Hx on the pivot? The acceleration of gravity is 9.8 m/s2.
a lens that has a focal length of 3.99 cm is used as a magnifying glass.a to obtain maximum magnification and an image
a red car and a green car move toward each other in adjacent lanes and parallel to an x axis. at time t 0 the red car
The spring constant for the tendon is the equal for both groups, 33. What is the difference in highest stored energy between the sprinters and the non athletes?
Two blocks with masses M1=7.90kg and M2=1.20kg are attached by a thin string which goes over a frictionless, Calculate the magnitude of the frictional force acting on M1
A single square loop of wire 21.8 cm on a side is placed with its face parallel to the magnetic field between the pole pieces of a large magnet. When 6.27 A flows in the coil, the torque on it is 0.325 m·N. What is the magnetic field strength?
on the apollo 14 mission to the moon astronaut alan shepard hit a golf ball with a 7 iron. the acceleration due to
questionassume early universe was composed only of helium instead of hydrogen. a estimate the temperature of cmb when
A 65kg person throws a 0.0410 kg snowball forward with a ground speed of 28.0 m/s. A second person, with a mass of 60kg, catches the snowball. Both people are on skates.
During a testing process, a worker in a factory mounts a bicycle wheel on a stationary stand and applies a tangential resistive force of 115N to the tire's rim. what force must be applied to the chain
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