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A microwave transmitter emits electromagneticwaves of a single wavelength. The maximum electric field1.22 km from the transmitter is6.74 V/m. Assuming that thetransmitter is a point source,
a. Calculate the maximum magnetic field at this distance.
b. Calculate the total power emitted by thetransmitter.
A 50cm diameter wheel rolls wothout slipping. The wheel spins 20rad/s. What is the speed of the axle of the wheel
A sledge loaded with bricks has a total mass of 17.1 kg and is pulled at constant speed by a rope inclined at 19.9° above the horizontal. how much work is the roping doing on the sledge
The image of a very distant car is located 17 cm behind a convex mirror. what is the radius of curvature of the mirror
The coefficient of static friction
a projectile is fired with an initial velocity of 35 m/s at an angle of 30 degrees above horizontal of a 30 feet tall building. find (a) the max height of the projectile
An ideal step-down transformer has a primary coil of 300 turns and a secondary coil of 28 turns. What is the voltage in the secondary coil
A person is nearsighted and can clearly focus on objects that are no farther than 2.6 m away from her eyes. What is the focal length of the borrowed glasse
You are given a container with 56 g of hydrogen atoms. What is the total charge on the electrons in the container
Three ships leave a spacestation at nearly the same time. As seen by a spacestation observer, Find the speed and direction of ships 2 and 3
A satellite rocket weighing 200,000 N acquires a speed of 2000 m/s in 1 minute after launching. What is its kinetic energy one minute after launching
A force F is applied horizontally to a block of mass 2 kg which, nevertheless, slides down a frictionless 5-m plane inclined at 25 degrees to the horizontal. what is its acceleration down the plane
A football punter accelerates a football from rest to a speed of 9 m/s during the time in which his toe is in contact with the ball, what average force does the punter exert on the ball
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