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Find the threshold energy of the photon, that is, the minimum energy the photon must have for this reaction to occur.
A sphere has a radius 1.500m Find its volume in cm^3. Find its suface area in m^2 and in mm^2?
Write the following quantities in standard units.
Darcy's law permeability equation exists and is as follows:
Calculate the amount of heat required to heat a 3.5-kg gold bar from 21 degrees celcius to 67 degrees celsius.
A particle, starting from point A in the drawing, is projected down the curved runway. Upon leaving the runway at point B.
Suppose that a ball is drpped from 9 feet above the Moon. At what speed is the ball traveling as it reaches the Moon?
How much longer is the wavelength of the scattered photon than that of the incident photon?
Calculate the kinetic energy of the bullet immediately before it struck the block.Calculate the velocity of the bullet as it struck the block.
At the same time, samples of Energy-bars will be distributed. At the same time, the company is offering a $5,000 cash bonus to its employees who buy hybrid cars
Convert the following temperatures to the Kelvin temperature scale:
The 20-lb cart B is supported on rollers of negligible size. If a 10-lb suitcase A is thrown horizontally on it at 10 ft/s.
You have an aluminum rod that has a F=400N with a Length of 2m. Aluminum's density (rho) is 2.71 x 10^3 kg/m. It has a diameter of 0.5 mm so use I2r.
The average density of blood is 1.06 x 103 kg/ m3. If you donate a pint of blood to the Red Cross, what mass of blood have you donated, in grams
Describe the symmetry of this initial configuration. What happens to the coordinates of a general vector (x1, x2, x3) under this symmetry transformation?
Sixty miles/hour is about how many meters/second?
Using the equation for kinetic energy Ek=1/2mv^2 (where m is mass and v is speed) calculate the kinetic energy of the Eurasian plate
Two snowcats tow a housing unit to a new location at McMurdo Base, Antarctica, as shown. The sum of the forces FA and FB exerted on the unit
In an adjustable nozzle for a garden hose, a cylindrical plug is aligned along the axis of the hose and can be inserted into the hose opening
A 240 horsepower car that weighs 4300 lbs beginning at a stop travels 1/10 of a mile. At optimum performance, what is the maximum speed in MILES per HOUR
A truck filled with supplies sets out across the country at 9:00 A.M. It is traveling at a constant speed of 80.0 km/h.
An 80kg man jumps from a height of 2.5m onto a platform mounted on springs. The spring compress 0.240 below its initial position and then it rebounds.
A spring is compress 8.7cm between two carts of 1.0kg and 1.5kg respectively. If the spring constant is 89N/m what is the velocity of the heavier cart.
Is the work done by air resistance positive or negative? Is this work done by a conservative or non-conservative force?
A 200 g ball is thrown upwards with an initial kinetic energy of 10 Joules. What maximum height will the ball attain? (neglect air resistance).