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Q. A child slides down a slide with a 31 incline, and at the bottom her speed is precisely one third what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child.
Q. Light with a wavelength of 633 nm illuminates a single slit and a diffraction pattern of light is viewed on a screen that is 1.50 m behind the hole. The distance between the m = 1 and m = 2 minima in the pattern is 4.75 mm. Find the slit width.
The 3.3 kg piece of wood slides on the surface. The curved sides are perfectly smooth, but the rough horizontal bottom is 35 m long and has the kinetic friction coefficient of 0.24 with the wood. The piece of wood starts from rest 6.0 m above the rou..
while the other terminal of the ammeter is connected to the other wire, ammeter shows that the current through the wire is 1 A. You then disconnect everything and travel to the other end of the telephone line, where you repeat the process and find ..
What is acceleration of an object sliding down to plane
What is the horizontal distance x to the base of the wall supporting the mirror of the near point on the floor that can be seen reflected in the mirror . What is the speed of the third fragment? Overlook effects due to gravity.
An Indy car with a speed of 120km/h goes around a level, circular track with a radius of 1km. What is centripetal acceleration of the car.
A staging that weighs 440 N supports two painters, one 110 N and the other 460 N. The reading in the left scale is Ft = 800 N. What is the reading Fr, in the right hand scale.
Calculate each of the following if the electrons exit the field with a speed of 4.45x10^6 m/s and distance between the plates is 2.07 cm.
what is the speed of the proton in the beam.define the spread in these values.
Using the capacitance determined in part (a), calculate the current in the circuit 7.4 ms after the switch is closed. Suppose that the capacitor is uncharged initially and that the emf of the battery is 9.0 V
At what rate is the flywheel spinning while the power comes back on. How long after the beginning of the power failure would it have taken the flywheel to stop if the power had not come back on.
The edge of a cube consist of equal resistors of resistance R, that are joined at the orners, let a battery be connected to two opposite corners of a face of cube. what is the efective resistance.
A ski jumper has 1.2 ´ 10 J of potential energy at the top of the ski jump. The friction on the jump slope is small, but not negligible. What can you end about the ski jumper's kinetic energy at the bottom of the jump.
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