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(i) Explain how the earth’s geomagnetic field is created? Hint: be sure to include thedirection of the earth’s current.(ii) Why is Northern Canadabombarded by more intensecosmic radiation (solar wind) than Mexico is?
(iii) Why do astronauts keep to altitudesbeneath the Van Allen radiation belts when doing space walks?
What is the magnitude of the force per meter of length on a straight wire carrying an 6.20 current when perpendicular to a 0.60 uniform magnetic field?
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
A boy in a wheelchair (total mass 51.0 kg) has speed 1.40 m/s at the crest of a slope 2.40 m high and 12.4 m long.Find the work he did in pushing forward on his wheels
Pressure Variations and Ocean Exploration, How do the pressure variations with depth affect the ability to explore the ocean? How does it affect scuba diving
An ideal air conditioner operating on a Carnot cycle absorbs heat Q2 from a house at temperature T2 and discharges Q1 to the outside at temperature T1, consuming electrical energy E.
A loop of wire in the shape of a rectangle rotates with a frequency of 162 rotation per minute in an applied magnetic field of magnitude 3 T, Find the maximum current through the bulb
Consider a map oriented so that the x axis runs east-west (with east being the "positive" direction), find the direction of the total movement of the driver
In which scenario do you experience the larges acceleration? Explain why using physical principles you have learned.
It takes a minimum distance of 48.96 m to stop a car moving at 12.0 m/s by applying the brakes (without locking the wheels). Assume that the same frictional forces apply and find the minimum stopping distance when the car is moving at 26.0 m/s.
The potential difference between two parallel plates is 566 V. An alpha particle with mass of 6.64 10, What is the speed of the alpha particle when it reaches the other plate
Two point charges q1 = -7.40 nC, and q2 = -14.0 nC are separated by 25.0 cm, What would be the magnitude and direction of the electric force
A spring is hung from the ceiling. A 0.430 -kg block is then attached to the free end of the spring. Find the angular frequency of the block's vibrations
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