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What is the minimum (non-zero) thickness for the air layerbetween two flat glass surfaces if the glass is to appear dark when700 nm light is incident normally? What if the glass is to appear bright?
q1. a submarine is 306 m horizontally out from a shore and 120 m beneath the surface of the water. a laser beam is sent
question1two blocks are associated by a light string that passes over a frictionless pulley. the block of mass m1 lies
An astronaut at rest on Earth has a heartbeat rate of 70 beats/min. What will this rate be when she is traveling in a spaceship at 0.90c as measured (a) by an observer also in the ship and (b) by an observer at rest on the Earth?
The electric field midway between two equal but opposite point charges is 730 N/C, What is the magnitude of the charge on each
A torque of 12 N * m is applied to a solid, uniform disk of radius 0.50 m. I f the disk accelerates at 5.6 rad/s^2, what is the mass of the disk
An electron acquires 100fJ of kinetic energy when it is accelerated between two paralle lplates placed at a distance of 1mm
An 8.70-kg block slides with an initial speed of 1.51 m/s up a ramp inclined at an angle of 27.4 degrees with the horizontal. calculate the distance the block slides before coming to rest.
Given: G = 6.67259 × 10?11 N m2/kg2 Mimas, a moon of Saturn, has an orbital radius of 1.68 × 108 m and an orbital period of about 23.32 h. find the mass of Saturn
At the end of a factory production line, boxes start from rest and slide down a 30 degrees ramp 5.4 m long. If the slide is to take no more than 3.3 s, what is the maximum coefficient of friction between the box and the slide?
A man wolks up a flight of stair, his power output is P. he runs up the same stairs with twice the speed. What's new power output
The work fuction of a particular substance is 7.81*10^-19 J. What is the photoelectric cutoff wavelength for this material
Two converging lenses (f1 = 9.00 cm and f2 = 6.00 cm) are separated by 18.0 cm. The lens on the left has the longer focal length. find is the final image upright or inverted
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