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A circular coil of 4 turns and a diameter of 30.0 cm is oriented in a vertical plane with its axis perpendicular to the horizontal component of the Earth's magnetic field. A horizontal compass placed at the center of the coil is made to deflect 45.0° from magnetic north by a current of 0.530 A in the coil.
(a) What is the horizontal component of the Earth's magnetic field?(b) The current in the coil is switched off. A "dip needle" is a magnetic compass mounted so that it can rotate in a vertical north-south plane. At this location, a dip needle makes an angle of 15.0° from the vertical. What is the total magnitude of the Earth's magnetic field at this location?
A 20 kg block is stacked on top of the 20 kg block. Both blocks are glued together. What is the magnitude F of force, acting horizontally on the two blocks, that is required to make the two blocks start to move.
With what velocity would they be separating after the collision.
A car is driving 22.7m/s flat ground drives off 42.3 m high cliff. How much time does it take to reach the ground.
In which collision is the impulse on the cart greater. The magnitude of the charge on an electron is 1.6e-19 C
A drunk driver in a 1600 kg car plows into a 1500 kg parked car with its brake set. Police measurements show that the two cars skid together a distance of 19 m before stopping. If the effective coefficient of friction is 0.78, how fast was the dru..
An unstrained horizontal spring has a length of 0.34 m and a spring constant of 200 N/m. Two small charged objects are attached to this spring, one at each end, determine the possible algebraic signs
The press box at a baseball park is 30 ft above the ground. A reporter in the press box looks at an angle of 18 degrees below the horizontal to see second base. What is the horizontal distance from the press box to second base.
A helicopter is ascending vertically with a speed of 4.50 m/s. At a height of 195 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground.
A 45.0-g object connected to a spring with a force constant of 30.0 N/m oscillates with an amplitude of 4.00 cm on a frictionless, horizontal surface. calculate the total energy of the system
A beam consisting of 8.22x10^16 electrons/sec passes through a region of vacuum. A) What magnetic field would be measured 1.50cm away from the center of the beam?
A 12 kg runaway grocery cart runs into a spring with spring constant 300 N/m and compresses it by 70 cm.What was the speed of the cart just before it hit spring.
The light ray makes an angle of α = 32.1° with the normal line at the boundary of linseed oil and water. find the angles θ1 and θ2. Note that n = 1.48 for linseed oil.
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