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How can you calculate the optimal burn time for a rocket such that the burn-out height is maximized? Assume that you know the mass fraction, or K, and the specific impulse of the engine.
An L-R-C series circuit consists of a 2.50?F capacitor, a 5.50mH inductor, What is the maximum current through the capacitor
q1. a box of mass 32 kg is at rest on a horizontal frictionless surface. a constant horizontal force then acts on the
Find the magnitude of the momentum of the 1.60-kg ball just before it collides with the 3.50-kg ball. Find the speed of the two balls (now stuck together) at the instant immediately after the collision.
Starting from rest, a solid sphere begins to spin reaching its angular speed of 3.17 rad/s after 0.300 seconds. What was its angular acceleration during this process?
Consider two transformers. Transformer A has 300 turns on its primary and 500 turns on its secondary. What is the amplitude of the secondary voltage on transformer B
A 5.7x10^2 kg hot-air balloon takes off from rest at the surface of the earth. The wind and lift forces take the balloon up, doing +9.7 x 10^4 J of work on the balloon in the procedure. At what height above the surface of the earth does the balloo..
Gravity on the moon is only 1/6 as strong as gravity on the Earth. What is the weight of a 16 kg object on the moon and on the Earth? What is its mass on the moon and on the Earth?
An object at rest on a flat, horizontal surface explodes into two fragments, one seven times as massive as the other. Determine how far does the lighter fragment slide
A small block with mass 0.0450kg slides in a vertical circle of radius 0.600m on the inside of a circular track. How much work was done on the block by friction during the motion of the block from point A to point B
Two blocks of mass 2kg and 4 kg are held together by a string force of 10N is applied on 2kg and 20N on 4kg find the tension in the string connected between two blocks
The wiring in the wall of your house to and from an outlet has a total resistance of typically 0.16 ohm . Suppose a device plugged into a 120 V outlet draws 14.9 A of current. (a) What is the voltage drop along the wire?
Using the graph, determine the maximum height reached by the ball.Express your answer to one decimal place.
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