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a) An electron enter a magnetic field. The magnetic field has a uniform strength 2.4 T and is oriented at a 45 degree angle to the electron's motion. A force of magnitude 9.2810^-13 N acts on the electron. What is the electron's speed?
b) An alpha particle, which is a helium nucleus, has a mass of 6.64*10^-27 kg. It is travleing horizontally at 42.3 km/s when it enters a uniform, vertical 1.6 T magnetic field. What is the diameter of the path followed by the alpha particle?
c) An alpha particle, which is a helium nucleus, has a mass of 6.64*10^-27 kg. It is travleing horizontally at 42.3 km/s when it enters a uniform, vertical 1.6 T magnetic field. What is the magnitude of the acceleration of the alpha particle while it is in the magnetic field?
An 18 g rifle bullet travelling 180m/s buries itself in a 3.6kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Verify the horizontal component of the pendulum's displacement.
F ind the speed of the golf ball just after impact
A small droplet of oil with mass of 4.81×10-15 kg is held suspended in a region of uniform electric field directed upward with a magnitude of 7025 N/C
How many kilograms of water at 100 degrees Celsius can be converted to steam by the addition of 1.13X10^7 joules of thermal energy.
An insulating sphere of radius 5.00 cm centered at the origin, has a uniform volume charge density 3.08 uc/m^3. What is the electric field inside the spherical shell at 3.12 cm
Air passes through a large-diameter glass tube, then through a small-diameter tube, and finally through a large-diameter tube again, Find the velocity of the air in the small-diameter tube
(a) What is the velocity of the boat at t = 18.89 s? (b) Find the total displacement of the boat.
The frequency of sound wave from an ambulance is 2,400 Hz. The velocity of sound is 345.0 m/s. find the frequency of the siren heard by the observer
then collides with a spring whose spring constant is 250 N/m. angle is 30 degrees. Illustrate what is the maximum compression of the spring?
A sphere of mass 3.00 g is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a constant angle of 28.0° with the vertical. Determine the tension in the cord
An important news announcement is trans- mitted by radio waves to people who are 122 km away, sitting next to their radios, and by sound waves to people sitting across the newsroom, 1.2 m from the newscaster. Take the speed of sound in air to be 345 ..
Two identical particles of mass m approach each other at equal and opposite speeds, v. How much kinetic energy was lost in this collision
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