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Q1. A vertical electric field of magnitude 3.00 104 N/C exists above the Earth's surface on a day when a thunderstorm is brewing. A car with a rectangular size of 6.00 m by 3.00 m is travelling along a dry gravel roadway sloping downward at 15.0°. Find out the electric flux through the bottom of the car.
Q2. A block of weight W can slide on a horizontal surface. A force of W/n1 is applied to the right that causes the block to accelerate with acceleration equal to g/n2. g is the acceleration by reason of gravity. If the coefficient of kinetic friction is &mu = 1/n3, then what is n3
Let us take half the terminal speed as a reasonable "upper bound" beyond which we should not use our constant acceleration free-fall relationships.
the magnitude of the net electric field. A lead ball is dropped into a lake from a diving board 6.40 above the water. After entering the water, it sinks to the bottom with a constant velocity equal to the velocity with which it hit the water.
A3.50kg object is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of24.0N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position.
A 2 kg mass is placed at rest against a spring of spring constant 5 N/m, which is compressed by 10 cm from its equilibrium position. compute the amount of potential energy stored in the spring
A straight wire carrying a 2.7 A current is placed in a uniform magnetic field of magnitude 0.25 T directed perpendicular to the wire. Find the magnitude of the magnetic force on a section of the wire having a length of 10 cm
Firemen are shooting a stream of water at a burning building. A high-pressure hose shoots out the water with a speed of 23.0m/s as it leaves the hose nozzle. How high above the ground does the water strike the building
A 5.0 kig block is hung from the ceiling on a 2.0-meter-long wire with a mass of 4 g. How long does it take the pulse to reach the ceiling
A student wants to have $30,000 when he graduates 4 years from now. His grandfather gave him a gift of $10,000. How much must he save each year (to the nearest dollar) if he deposits the $10,000 today
A woman is running at a constant velocity of 5 m/s in an attempt to catch a stopped bus 11m ahead of her. Though, it pulls away from her with a constant acceleration of 1 m/s2. How much time does it take her to reach the bus if she keeps running a..
A heat pump uses an ideal Carnot cycle to heat a house. The outside air has a temperature of 294 K, In the scenario described in the previous question, how much energy is transferred out of the outside air
Workers pushing a 180-kg trunk across a level floor encounter a 10-m long region where the floor becomes increasingly rough; the coefficient of kinetic friction enhancements.
Suppose you weigh 738 N, and when you stand on one foot, your weight is spread out over an area of 1.600×10-2 m2. What is the pressure does your foot exert on the floor
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