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A positron with kinetic energy 3.00 keV is projected into a uniform magnetic field of magnitude 0.140 T, with its velocity vector making an angle of 81.0° with the field. Find (a) the period, (b
It is to have a diameter of 4.40 and is to be designed so that flipping it 180in a field of 9.00×10-2 causes a maximum total charge of 0.360 to flow through a charge-measuring instrument of res
The high jumper can jump at the same initial velocity on the asteroid as on Earth, and the asteroid has the same average density as the Earth.
Tidal Effects in the Earth-Moon system are causing the Moon's orbital period to increase at a current rate of about 35 ms per century. Assuming the Moon's orbit around the Earth is circular, to what
The static friction coefficient between its wheels and road is µs=1.2 and the aerodynamic drag dorce on its body is given by FD=Kv2 where v is the speed and K=0.5Ns2/m2. Assume there is no li
Jeter hits a homerun where the ball just clears a 21 meter high wall. The wall is located 130 meters from home plate. The ball is also hit at an angle of 35 degrees to the horizontal. Find: Initial
Thecoefficient of kinetic friction between the box and the surface ofthe incline is 0.180. The initial speed of the box at the bottom ofthe incline is 2.40 m/s. How far does the box travel along the
Consider a capacitor made of two very large perpendicular plates. Let one plate (x-axis) be held at potential V=0, and the other plate (y-axis) be held at potential V=100 volts. Find the potential V
A thin ring of radius R and charge per length 1 rotates with an angular speed w about an axis perpendicular to its plane and passing through its center. Find the magnitude of the magnetic field at t
You throw a ball horizontally off of a building with a horizontal velocity of 5 m/s. What is the balls horizontal velocity 8 seconds later? How high should the building be if you want the ball to fa
An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is = 3.33 x 109 W/m2. What is the rms value of (a) the electric field and (b) the magnetic field
A 2.00 E30 kg mass star orbits (in a nearly circular orbit) the center of a galaxy at an average distance of approximately 5.50 E23 m with an average period of approximately 1.70 E9 years. a) Use K
The human eye is most sensitive to light having a frequency of about 5.5 x 1014 Hz, which is in the yellow-green region of the electromagnetic spectrum. How many wavelengths of this light can fit ac
A hot-air balloon is ascending at the rate of 14 m/s and is 96 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed
Two waves traveling in opposite directions along a string fixed at both ends create a standing wave described by y(x, t) = 0.01 sin(58x)cos(1210t). The string has a linear mass density of 0.01 kg/m,
Input an expression for the cars velocity V after a time t of supplying full power using the variables provided.
A roller coaster moving with a constant speed of 13 m/s, goes up and over a hill that has the shape of a circle at the top. If the radius of curvature of this section of the track is r = 32 m, find
During an Apollo lunar landing mission, one astronaut stayed in the command module which continued to orbit the Moon while two astronauts walked on the moon. If the command module was at an altitude
A 69-g handball moving with a speed of 4.3 m/s strikes the wall at an angle of 38° with the normal, and then bounces off with the same speed at the same angle with the normal. It is in contact w
When she reaches the north end of the raft she is running at 4.4 m/s relative to the raft. At that instant, what is her velocity relative to the water?
If the magnetic force exerted on this wire per meter is 0.037 N, what is the magnitude of the magnetic field?
You would get a greater shock from touching the leads of the one with high capacitance than you would from toughing the leads of the other one. from this information, explain what causes the sensati
The gas bag is about 30 meters long with a diameter of about 10 meters, and it is filled with helium (density about 4 grams per 22.4 liters under these conditions). Estimate the total mass of the bl
There is no friction between crate 1 and the table. What is the acceleration of m1? what is the tension in the portion of the rope between the pulley and m1? What is the tension in the portion of th
A 8.00 kg shell at rest explodes into two fragments, one with a mass of 1.00 kg and the other with a mass of 7.00 kg. If the heavier fragment gains 140 J of kinetic energy from the explosion, how much