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A 0.20-m-long metal rod has a radius of 1.0 cm and a resistance of3.2 x 10-5 Ω. What is the resistivity of the metal?
A target in a shooting gallery consists of a vertical squarewooden board, 0.250 m on a side and with mass 0.750 kg, What is the angular speed of the board just afterthe bullet's impact
While an elevator of mass 832 kg moves downward, the tension in the supporting cable is a constant 7730 N. What is the elevator's speed at t = 7.00 s
Find the frequency of revolution of an electron with an energy of 500 eV in a magnetic field of 41.0 µT. Hz (b) Calculate the radius of the path of this electron if its velocity is perpendicular to the magnetic field. m
How far (in {rm nm}) does the electron move before reaching a turning point? Because of their larger mass, the protons remain fixed all through this interval of time.
A light train is travelling on a straight section of track at a constant speed of 15 rm m/s. As it approaches next station, it starts to slow down at a rate of 5 rm m/s^2 until it stops at the station.
The drawing below shows three particles far away from any other objects and located on a straight line. Calculate the magnitude of the net gravitational force acting on particle A
A child, hunting for her favourite horse, is running on the ground around the edge of a stationary merry-go-round. The angular speed of the girl has a constant value of .250 rad/sec.
A 15 kg block rests on a level frictionless surface and is attached by a light string to a 5.0 kg hanging mass where the string passes over a massless frictionless pulley, What is the tension connecting the string
An 8.00 m, 200 N uniform ladder rests against a smooth wall. how far up the ladder can a 800 n man climb before the ladderbegins to slip
an electron has an initial velocity of 2.00 x 106 ms in a uniform 8.00 x 105 nc strength electric field. the field
assume you are carrying out the conversion of 1-bromobutane to 1-butane. how could you use infrared spectroscopy ir to
during a process 10j o work are performed on a system while the system itself gives off 5j of heat. the internal energy
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