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Select True or False for each of the following statements regarding magnetism, and the earth's magnetic field "B."
1. The earth's B lines are parallel to the earth's surface at allpoints.For a bar magnet, the B - lines exit through the N pole and returnthrough the S pole .2. The magnitude of earth's B is about 1 Tesla.3. B does work on a charge only when the charge has a velocitycomponent parallel to B.4. The vector B acts only on charges at rest.5. B does work on a charge only when the charge has a velocitycomponent perpendicular to B.6. Like magnetic poles attract.
A U-shaped tube is connected to a box at one end and open to the air at the other end. What is the gas pressure inside the box
A major league pitcher can throw a baseball in excess of 41 m/s. If a ball is thrown horizontally at this speed, how much will it drop by time it reaches a catcher who is 17m away from the point of release.
A 2.00 kg mass is located at (4.00 m, 0.00 m, 0.00 m) and a 4.00 kg mass is located at (0.00 m, 3.00 m, 0.00 m). If this system of masses rotated about the X-axis perpendicular to the Z-Y plane, then the moment of inertia of this system is ?
a thin circular sheet of glass of diameter 6 meters is rubbed with a cloth on one surface and becomes charged
Two steel guitar strings have the same length. String A has a diameter of 0.60mm and is under 440.0N of tension. Find the ratio of the wave speeds, VA / VB, in these two strings
one cubic centimeter of a cumulus contains 410 water drops which have a typical radius of 10 microm. a how many cubic
a certain string just breaks when it is under 25 n of tension. a boy uses this string to whirl a 2-kg stone in a
A boat takes 3.2 hours to travel 50 km down a river, then 4.6 hours to return. How fast is the river flowing
A 3-kg sphere makes and inelastic collinsion with a second sphere initially at rest. What is the mass of the second sphere
An aluminum wire having a cross-sectional area equal to 2.70 10-6 m2 carries a current of 6.50 A. The density of aluminum is 2.70 g/cm3. calculate the drift speed of the electrons in the wire
A freight company uses a compressed spring to shoot 1.7 kg packages up a 1m high frictionless ramp into a truck. The spring constant is 241 N/m and the spring is compressed 33 cm.
A bucket of water with a mass of 2kg is attached to a rope that is wound around a cylinder. The cylinder has a mass of 3 kg and is mounted horizontally on frictionless hearings. The bucket is released from rest.
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