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Q1. Two identical 30 {rm g} particles each carry 3.0 {rm mu C} of charge. One is held fixed, and the other is placed 1.0 {rm mm} away and released. Find out the speed of the moving charge when it's 1.0 {rm cm} from fixed charge.
Q2. An 82 kg parachutist descends through a vertical height of 350 m with constant speed. Find out the increase in entropy produced by the parachutist; assume the air temperature is 21 degrees C.
A 73.0-kg parachutist falling vertically at a speed of 6.60m/s impacts the ground, what is the average force exerted on the parachutist by the ground
You pull your 55.00 kg friend on a 5.00 kg sled across a patch of snow. You pull using a 48-N force on a rope that makes a 35 degree angle with the horizontal. If the friction force between the sled and the snow is a mere 5-N what is the normal fo..
A carbon sample of the same size taken from a fresh piece of bone emits 16 beta emissions a minute. How long ago did the saber-tooth tiger live?
A series RLC circuit has a resistance of 24 %u03A9 and an impedance of 100 %u03A9. what average power is delivered to the circuit
A 15-g sample of the candy is placed in a small aluminum container of mass 0.325 kg filled with oxygen. Determine the Calorie content of 69g of candy
The magnetic force per meter on a wire is measured to be only 21% of its maximum possible value
A mass-spring system oscillates with an amplitude of 5.60 cm. If the spring constant is 226 N/m and the mass is 453 g, determine the mechanical energy of the system
Two forces, F1 vector and F2 vector, act at a point. F1 vector has a magnitude of 8.40N and is directed at an angle of 65.0 degrees above the negative x axis in the second quadrant. What is the magnitude of the resultant force
Suppose the steel alloy is used for an automobile axle that rotates at an average rotational velocity of 600 revolution per minute (RPM). What is the highest lifetime of continuous driving that are allowable at stress level of 310-MPa.
A diffraction grating has 3047 lines/cm. Light that contains all wavelengths between 463 and 628 nm shines on the grating. Calculate the width of the dark area
A spacecraft approaching the earth launches an exploration vehicle. After the launch, What is the speed of the exploration vehicle
Young's modulus for earth can be approximated by 5.5*10^5 MN/m^2 and the corresponding shear modulus by 2.0*10^5 MN/m^2. How far from the station did the earthquake take place
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