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Battery Design
A satellite requires a battery with an open-circuit voltage vOC = 36 V and a Thévenin resistance RT = 10 Ω. The battery is to be constructed using series and parallel combinations of one of two types of cells. The first type has vOC = 9 V, RT = 4 Ω, and a weight of 30 g. The second type has vOC = 4 V, RT = 2 Ω, and a weight of 18 g. Design a minimum weight battery that meets the open-circuit voltage and Thévenin resistance requirements.
A force F =100 of holds the 400-lb crate in equilibrium. Determine the coordinates (0, y, z) of point A if the tension in cords AC and AB is 700 lb each.
Sales are up. The sales at your new gift shop in December are double the November value. Should you conclude that your shop is growing more popular and will soon make you rich? Explain your answer.
You stand at the center of a carousel spinning at rate w. You throw a ball horizontally with velocity Vo from a heigh h. what is the centrifugal force on the ball? what is the coriolis force on the ball?
A car initially travelling at 25.90 m/s undergoes a constant negative acceleration of magnitude 1.60 m/s2 after it brakes are applied. How many revolutions does each tire make before the car comes to a stop, assume the car does not skid and the ti..
The frequency of a steam train whistle as it approaches you is 532Hz . After it passes you, its frequency is measured as 458Hz. How fast was the train moving
A cylinder with a moveable piston holds 2.71 mol ofargon at a constant temperature of 307 K. Calculate the heat added to the gas
The electric field within the membrane separating the inside and outside of a biological cell is approximately 7.8MV/m, what is the potential difference across the membrane
You are given a pendulum composed of a 0.038 kg mass on the end of a 0.6 m long massless string. compute the velocity of the mass as it passes through the vertical
The moon has a period of 27.3 days and has a mean distance of 3.90 x 105 km from the center of Earth. Discover the period of an artificial satellite that is in orbit 6.70 x 103 km from the center of Earth.
To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 10cm in diameter and 60cm in length. What is the total length of wire you will need to meet these specifications
A cart of mass m1=0.5 kg moves with a velocity of 0.9 m/s to the right on a frictionless track. What is the velocity of each cart after the collision
You're driving down a highway, and you decide to accelerate flaunting the speed limit, you accelerate way up there. At one point, you're going (a) 100km/hr. Later, you're going (b) 0.25 times the speed of light.
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