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an object is in front of a spherical mirror; the image of the object is upright and twice the size of the object, and it appear to be 12cm behind the mirror. what is the object distance? Focal length of mirror? and is it a convex or concave mirror?
A circular platform is supported by 8 identical steel wires. The platform and its uniformly distributed load has a total mass of 3.7 kg. The breaking stress of steel is 7.50 x 108 pascals.
A 30 kg box is pushed by a horizontal force of 900. N as it slides up a plane inclined at an angle of 30 degrees with the horizontal. The coefficient of friction between box and plane is 0.20. How far-off will the box travel along the plane in 5.0..
An 840 kg car needs to round a level curve with a radius of 23m.The driver wants to proceed at 56 kph. How much work does the friction force do on the car
You are called as an expert witness in the trial of a traffic violation. The facts are these: A driver slammed on his brakes and came to a stop with constant acceleration, How fast was he going when he hit his brakes
What is the maximum speed with which a 1200 kg car can round a turn of radius 60.0m on a flat road if the coefficient of friction between tires and road is 0.65.
a 1580 kg block of granite is pulled up an incline at a constant speed of 1.43 m/s by a cable and winch. What is the power due to the force applied to the block
A cylinder contains 2.25 mol of helium gas at 21.0°C. Assume that the helium behaves like an ideal gas. What is the average kinetic energy per molecule
A diving chamber is cylindrical in nature with the bottom open above the surface of the water the chamber's volume is completely filled with air as the chamber is submerged the air is compressed to a smaller volume
question11 in a youngrsquos double-slit experiment that uses electrons an angle that locates the first-order bright
Suppose a capacitor in a video camera has a capacitance of 26.0 ?F, How much potential energy is stored in the capacitor
Suppose you have two equal mass objects both on a gentle incline. One is a glider on an air track while the other is a ball on a straight slope. Explain what type of energy both objects have
The mass of a bottom quark is 4.20Gev/c^2 and was found by colliding a beam of protons with a cloud of stationary protons. How fast were they moving
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