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A negative particle with mass=m and charge=-Q orbits an infinitely long, positive line of charge having q/L=λ. The radius of the orbit is R. We than load ourselves and our instruments into a fast vehicle and drive at fix velocity, V, to the right, parallel to the line.
Determine the velocity vector of the line of charge and the particle relative to our vehicle.
Compute the direction and magnitude of the current we see due to the line.
A 0.62 kg glider slides frictionlessly on an 3-m air track inclined at an angle of 12 degrees. What will the scale read as the system accelerates
A camera's flash uses the energy stored in a 270 microF (uF) capacitor charged to 190 V. The current in the charging circuit is not to exceed 25 mA. What's the resistance in the charging circuit
Two runners approaching each other on a straight track haveconstant speeds of 4.50m/s and 3.50m/s, respectively, whenthey are 100m apart. How long will it take for the runners tomeet, and at what position will they meet if they maintain these speeds?
An archer shoots a 2.0x10^-2 kg arrow at a target with a speed of 50 m/s. When it hits a target, it penetrates to a depth of 8.6x10^-2 m. What was the magnitude of the average force exerted by the target on the arrow?
a steel cable of diameter 3.0 cm supports a load of 2.0kN. what is the fractional length increase of the cable compared with the length when there is no load if Y=2.0 x 10^11 Pa
A laser beam is reflected by a plane mirror. It is observed that the angle between the incident and reflected beams is 22 degrees.If the mirror is now rotated so that the angle of incidence increases by 5.0 degrees, what is the new angle between t..
A glass window 0.35cm thick measures 84cm by 84cm. how much heat flows through this window per minute if the inside and outside temperture difference differ by 15 degree Celceus
A car of mass 2800 kg collides with a truck of mass 4500 kg, and just after the collision the car and truck slide along, compute the velocity of the stuck-together car and truck
A person walks into a room and switches on the ceiling fan. The fan accelerates with constant angular acceleration for 15 s until it reaches its operating angular speed of 1.0 rotations/s after that its speed remains constant as long as the switch..
a particle of mass m is located in a 1-d box with infinite walls at x0 and xl. for the fourth energy level n4 set up
Most geologists believe that the dinosaurs became extinct 65 million years ago when a large comet or asteroid struck the earth, What percentage is the earth's speed around the sun
A 50 kg block of ice slides downa frictionless incline 1.5 m long and 0.89 m high. A worker pushes up against the ice, parallel to the incline, so that the block slides down at constant speed.
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