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The planet mars hass a mass of 6.42x10^23kg and a radius of 3396km. What escape speed is needed for a space ship leaving the surface of Mars
In 13.6 s, 220 bullets strike and embed themselves in a wall. What is the average change in momentum per second for the bullets
In exercising, a weight lifter loses 0.124 kg of water through evaporation, find the change in the internal energy of the weight lifter
A plastic bag is filled with nitrogen at atmospheric pressure and 27.0 oC. If hot air is used instead of nitrogen, what is the required volume of the balloon if the air inside can be maintained at 39
The potential on the axis of a uniformly charged disk at 5.5cm from the disk center is 140V ; the potential 12cm from the disk center is 110V. Find the disk radius in cm
The box of a well-known breakfast cereal states that one ounce of the cereal contains 144 Calories (1 food Calorie = 4186 J). what is the heaviest barbell
A 70 pF capacitor and a 280 pF capacitor are both charged to 3.6 kV. They are then disconnected from the voltage source and are connected together, Find the energy lost when the connections are made
two small charges with a mass of 1 gram each are connected by 2 cm long insulating rod of negligible mass. Obtain the moment of inertia around the center of mass
An empty storage tank has a volume of 140 ft3. What is the buoyant force exerted on it by the air
A person with a weight of 222 lb stands on two feet with their weight equally distributed between the two shoes, compute the pressure on each shoe independently
Use Pascal's principle. Given that Fout is 61 lb., the areas of the output and input cylinders are Aout 24 in2 and Ain 5 in2, what is the input force
An object is recovered from under the sea. Its weight is measured to be 71.5 lb and its volume 2.5 ft3. What is the object%u2019s weight density
If a person standing inside an elevator is moving up at uniform speed of 4m/s what is the normal force on her feet? Weight of the person is 60kg
The tank is shelling at a target that is 4km away and 60m above ground. If the shell is being fired at 30degrees above the horizontal, determine the release speed of the shell
The engine of an aircraft propeller delivers an amount of power 179hp to the propeller at a rotational velocity of 2310rev/min. How much torque does the aircraft engine provide
Two parallel conducting plates are separated by 10.0 cm, and one of them is taken to be at zero volts. What is the voltage between the plates
A long straight wire of diameter 2.33 mm and length 5.28 meters has a charge of 0.0388 coulomb uniformly distributed along it. Determine the flux through the side of the cylinder
A police officer spots a speeding car traveling at 20 m/s (approximately 44 mph) as it passes. How far will the officer have to drive before catching up to the speeding car
The largest-caliber antiaircraft gun operated by the German air force during World War II was the 12.8 cm Flak 40. What propulsive force was necessary to attain the muzzle speed
A steel ball bearing 7.0 mm in diameter is dropped into a cylinder of glycerin. What is the terminal velocity of the ball bearing
What is the pressure change in water going from a 3.2- cm-diameter pipe to a 1.8- cm-diameter pipe if the velocity in the smaller pipe is 8.0 m/s
A boy holds a 40-N weight at arm's length for 10 s. His arm is 1.5m ablove the ground. The work done by the force of the boy on the weight is
A small object is placed to the left of a convex lens and on the optical axis. obtain the position of the image formed by the lens?
A transformer is designed to step down the 206 volts to 16 volts. If there are 418 turns on the input coil, find how many turns should there be on the output coil
An electric toaster operating on 110.8 volts draws a current of 5 amperes. What is the resistance of the toaster