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Estimate the volume of your body. (Consider your body to be a cylinder having a radius of about 6 inches (or 0.15 m) and a height of about 1.5 meters
Estimate the minimum absolute pressure (in pascals) that can be developed at the inlet of a pump to avoid cavitation if the fluid is carbon tetrachloride at 20 celsius
You need to design a photodetector that can respond to the entire range of visible light. What is the maximum possible work function of the cathode
During a physics experiment, helium gas is cooled to a temperature of 19.0K at a pressure of 6.00×10?2atm. find the rms speed of the atoms
A sheet of glass (n = 1.50) is coated with a 500 nm thick layer of cubic zirconia (n = 2.18). How many phase changes do the reflected rays undergo
A soccer ball is kicked at 30 degrees to the horizontal at a speed of 24m/s. How far will it go over a level ground
atmospheric pressure as measured by a mercury barometer is 99.0 kPa, a patient is fed by intraveneous feeding. How high is the mercury in the barometer
You are walking along a small country road one foggy morning and come to an intersection. At what speed is the ambulance traveling
A heat pump moves heat from outside, where the temp is 1 degree C, to inside a building, where the temp is 20 degrees C, How much heat is dumped into the building in each cycle
A 200 kg communications satellite is placed into a circularorbit around the Earth with a radius of 4.23 x 107m(26,000 miles). Find the gravitational force on the satellite
Suppose you consume 2000 Cal of food per day. Note that a food Calorie, with capital C, is one kilocalorie: 1 Cal = 1 kcal. How many watts of heat and work can you do
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with an amplitude of 20.0 cm. What is the weight of the
An atom is cooled to zero K, and confined in a harmonic potential V (x) = 1 m?2x2. At 2t=0, the potential is switched off, such that V (x) = 0
using a modified version of Kepler's third law. Using a mass formula M1 = a^3/P^2 use this mass to determine the mass of Jupiter using data from its moon Callisto, calculate the mass of Jupiter
A ball is thrown downward of a 50 meter high building with a speed of 10 m/s. In what height do the balls meet
A rocket is fired straight upp from the ground with a 2.25 m/s acceleration. what is the speed of the rocked when the engines stop
What woud happen if a person would dropp an object from a ships mast with no wind blowing and the ship moving forward. Where will the object fall and why
An indoor swimming pool of depth 2m transfers heat at a rate of 100w/m2 to the 10m of air between the pool and the roof for 1000s. What is the temperature change of the air
3 objects are connected on an inclined table with the masses of 8.0kg, 4.0kg and 2.0kg and the pulleys are frictionless. determine the acceleration and direction of the motion of the system
If a 2.4 m wave was created using a frequency of 63 Hz, what frequency would be required to creat the next higher harmonic
A 5.4ft -ft-tall girl stands on level ground. The sun is 30? above the horizon. How long is her shadow
An object is 22cm in front of a diverging lens with a focal length of 11cm. Is the image upright or inverted
A dumbbell is made of two spheres, which each have a mass M and a radius r - and a massless stick af length L. What is the torque acting on the dumbbell
When you walk toward a mirror you see your image approaching you. If you walk at 2 m/s, how fast do you and your image approach each other
A large box with mass 45 kg is being pushed up a ramp at a 32 degree incline at a constant velocity by a man pushing parallel to the incline of 7.80 m. determine the force the man is pushing on the