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A proton moving at a constant velocity of 10^6 m/s enters a region of uniform magnetic field perpendicular to its velocity. If the magnetic field is 5 T, find the force on the proton. What will the force be if the proton's velocity makes a 45 degree angle with the field direction?
A 5000kg lunar lander is in orbit 30km above the surface of the moon. It needs to move out to a 500km-high orbit in order to link up with the mother ship that will take the astronauts home. How much work do the thrusters do?
a runner accelerates to a velocity of 5.30 ms due west in 3 s. his average acceleration is 0.643 ms2 also directed due
Firing a cannonball at 20.0m/s so that the man on the top of the castle cannot catch it. What is the relationship of the initial and final velocities of the cannonball
A 0.39 m long and 0.39 m wide loop is moved at a constant velocity of 0.37 m/s into a perpendicular constant magnetic field of 0.69 T
A 17 ?F capacitor is charged to 20 V and is then connected across a 11 mH inductor. What is the frequency of oscillation of the circuit
A 22.5 g bullet is fired from a rifle. It takes 2.60 10-3 s for the bullet to travel the length of the barrel, find the average net force exerted on the bullet
a double- slit interference experiment is performed with two very narrow slits separated by 0.15 mm. what is the distance between two nearby bright fringes on the screen
a charge of -6.50 nc is spread uniformly over the surface of one face of a nonconducting disk of radius 1.25cm.a find
A 3440-kg spacecraft is in a circular orbit a distance1850 km above the surface of Mars. How much work must thespacecraft engines perform to move the spacecraft to a circularorbit that is 4360 km above the surface?
A 0.39 V potential di?erence is maintained across a 1.7 m length of tungsten wire that has a cross-sectional area of 0.85 mm2, What is the current in the wire
A platform is rotating with an angular speed of 3.00 rad/s and an angular acceleration of 11.0 rad/s2. what is the magnitude of the total acceleration a
Assume that a 7.0-cm-diameter, 50 W light bulb radiates all its energy as a single wavelength of visible light. Estimate the magnetic field strength at the surface of the bulb
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