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A long solenoid has 100 turns/cm and carries current i. An electron moves within the solenoid in a circle of radius 2.40 cm perpendicular to the solenoid axis. The speed of the electron is 0.040 c (c = speed of light). Find the current i in the solenoid.
a certain particle is sent into a uniform magnetic field with the particles velocity vector perpendicular to the
A helicopter has blades of length 2.5m, extending out from a central hub and rotating at 4.00 rev/s. If the vertical component of the Earth's magnetic field is 50.0μT, what is the emf induced between the blade tip and the center hub?
Bill is flying an airplane with air speed 30.0 m/s. going south. Mike is on the ground and sees the plane traveling 25.0 m/s, 15 degrees east of south. What is the component of the wind's velocity to the north
A small block of mass m1 = 0.5kg slides to the left, with a velocity of v1 = -8.40 m/s, towards a curved wedge of mass m2 = 3 kg which sits on an icy, frictionless lake surface.
A copper wire and an aluminum wire of the same length have the same resistance. What is the ratio of the diameter of the copper wire to that of the aluminum wire
Which of the following observations support the statement that “Every system tends to adjust by itself to have minimum Potential Energy”
two charges q1 3x10-6 and q2 -6x10-6 c are placed along the x axis at orgin and 1.2m respectivelya at what distance
A solid piece of an unknown material wights 96.9 N in air and 59.6 N when submerged in water. The density of water is 1000 kg/m3, Determine the density of the material
A 0.15 kg baseball collides with a 1.0kg bat. The ball has a velocity of 40 m/s immediately prior to the collision. Estimate how fast the baseball is moving as it leaves the bat following the collision
A cylinder with a diameter of 23 cm rolls with an angular speedof 0.40 rad/s on a levelsurface. If the cylinder experiences a uniform tangentialacceleration of 0.012m/s2 without slipping until itsangular speed is 1.41 rad/s, through how many compl..
Light of wavelength 700 nm falls on a 0.38 mm wide slit and forms a diffraction pattern on a screen 1.3 m away. Find the width of the central maximum
When the Sun is straight overhead, a hawk dives toward the ground with the constant velocity of 4.50 m/s at 52° below the horizontal. Compute the speed of her shadow on the level ground.
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