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if you weigh 637N on earth's surface, how much would you weigh on the planet Mars? (Mars has a mass of 6.37x10^23 kg and a radius of 3.43x10^6 m)
An object has a total energy of 5.0 x 10^15 J and a kinetic energy of 2.0 x 10^15 J. What is the magnitude of the object's relativistic momentum
Calculate the acceleration of an electron that moves through the same magnetic field as in the example, as the same velocity as the proton
A 79 kg person sits on a 3.7 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.3 cm in diameter. Find out the pressure exerted on the floor by each leg of the chair, suppose the weight is evenly distributed.
A parallel plate capacitor of capacitance 7.2 µF has the space between the plates filled with a slab of glass with ? = 3.5. Find the capacitance after the glass is removed
A lawn mower has a flat, rod-shaped steel blade that rotates about its center. The mass of the blade is 0.59 kg and its length is 0.50 m. to what height would the blade rise
Element X decays to element Y with a half-life of 0.77 s. Initially there is a sample of pure X and after 2.31 s there are 7g of Y. What was the mass of the original sample
A monatomic ideal gas is held in a thermally insulated container with a volume of 0.06m^3. What volume must the gas be compressed to increase the pressure to 140 kPa
Suppose a collision produces a pair of particles, an electron and a positron (antielectron). the two are both initially traveling at a velocity of 8.0E4i m/s. what is the electric force on the electron? (neglect the electric force due to the positr..
The Calorie (or kcal) is another energy unit and is commonly used to measure food energy (as well as heat). How many Calories would you burn walking up a flight of stairs for an hour
a 60 g tennis ball traveling at 30m/s strikes a wall, What is the magnitude of the impulse in the ball
Two children, Shuya and Noriko, are riding on a carousel. Shuya is at the outer edge and Noriko is at a point half way to the center. what is Noriko's angular speed
The coefficient of kinetic friction between a 20 Kg box and the floor is 0.40. How much work does a pulling force do on the box in pulling it 8.0 m at the constant speed? The pulling force is directed 390 above the horizontal.
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