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A lens is formed from a plastic material that has an index of refraction of 1.55. If the radius of curvature of one surface is 1.25 m and the radius of curvature of the other surface is 1.75 m, use the lens maker's equation to calculate the focal length and the power of the lens.
Calculate the scale height for water vapor in the Earth's atmosphere, Use this information to state whether telescopes atop mount kea would be better for infrared astronomy than one's at sea level
With brakes fully applied, a 1550 kg car deccelerates from a speed of 78.0 km/hr. What is the change in the kinetic energy of the car
A flywheel with a radius of 0.310m starts from rest and accelerates with a constant angular acceleration of 0.660rad/s2, Compute the magnitude of the tangential acceleration, the radial acceleration
The acceleration of a certain simple harmonic oscillator is given by a = - (15.8 m/s2) cos (2.51t). What is the amplitude of simple harmonic motion.
A conducting bar rests on two parallel horizontal rails 50 cm apart forming a square area. The resistance of the bar and the rails is assumed to be constant and equal to 0.05 ??. What is the maximum value of the force acting on the bar during that ..
Express how unmet basic physiological needs of oxygen, nutrition, temperature, and humidity threaten clients' safety.
what is the rate of heat transfer from the plate to the air? If the free stream velocity if the air is doubled and the pressure are increased to 10 atm, what is the rate of heat transfer.
A high diver of mass 65kg jumps off a board 10m above the water. If her downward motion is stopped 1.70 s after she enters the water, what average force did the water exert on her.
what is its potential energy relative to the bottom of the shaft? how fast will the payload be traveling when it reaches the bottom of the shaft? convert your answer to mph for a comparison to highway speeds.
A 1.60m cylindrical rod of diameter 0.450cm is connected to a power supply that maintains a constant potential difference of 15.0V across its ends, Find the resistivity and for the material of the rod at 20 ?C
what is the mass of helium in the balloon.
A 362 g object is attached to a spring and executes simple harmonic motion with the period of 0.200 s. If the total energy of the system is 6.71 J.
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