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Q. At an accident scene on a level road, investigators measure a car's skid mark to be 88 m long.?
It was a rainy day and the coefficient of friction was estimated to be 0.42. Use these data to determine the speed of the car while the driver slammed on (and locked) the brakes.
Reply in m/s. Also, why does the car's mass not matter?
What is the electric potential energy of three equal positive charges of 1.33 µC while they are arranged to form a triangle 2.10 x 10-3 m on a side.
What is the value of a current in the smaller loop that would result in zero total magnetic fields at the center of the two loop system.
determine the minimum magnetic field.
A female gymnast weighs 620 N. If she is hanging stationary from a high bar, how many forces are acting on her.
Find the gage pressure at the center of pipe A in pounds per square inch and in kilopascals.
Three identical masses of 430 each are placed on the x axis. One mass is at = -14.0, one is at the origin, and one is at = 37.0.
compare with the force of gravitational attraction between them.Find the position of the particle after this time.
A 8.0 x15 swimming pool slopes linearly from a 1 depth at one end to a 3.70 depth at the other. What is the mass of water in the pool.
How much heat would flow by the glass in 1.00 h if there is a temperature difference of 3^circ {rm C} between the inner and outer surfaces.
A car moving at 37 m/s approaches a stationary whistle that emits 270 Hz sound. The speed of sound is 347 m/s. What is the frequency of sound heard by the driver of the car.
If a metal wire carries a current of 23.0 mA, how long does it take for 12.0×1020 electrons to pass a given cross-sectional area anywhere along the wire? The magnitude of the charge on an electron is 1.6 × 10-19 C.
Calculate the amount of work (in electron-volts) it would take to move an electron from 11.6 to 13.4 away from a +3.50 point charge.
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