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Linearly polarized light is incident of a sheet of polarizing material. The angle between the transmission axis and the incident electric field is 44 degree. Find what percentage of the incident intensity is transmitted?
The Concorde is 62 m long when its temperature is 23 degrees C. In-flight, the outer skin of this supersonic aircraft can reach 105degrees C due to air friction. The coefficient of linear expansion of the skin is 2.0 x 10^-5 (C degrees)^-1. Find the ..
A 4.00 kg hollow sphere of radius 5.00 cm starts from rest and rolls without slipping down a 30.0 degree incline. If the length of the incline is 50.0 cm, then the velocity of the center of mass of the hollow sphere at the bottom of the incline is:
A solenoid with 235 turns and a cross-sectional area of 65 cm^2 has a magnetic field of 0.80 T along it's axis. If the field is confined within the solenoid and changes at a rate of 0.24 T/s, the magnitude of the induced potential difference in the s..
An ideal transformer's primary has 2000 turns and secondary has 50 turns. The primary is connected to a source of 120 V, Find the current in the secondary
Two carts with masses of 4.5 kg and 3.9 kg move toward each other on a frictionless track with speeds of 5.6 m/s and 4.3 m/s, respectively. The carts stick together after colliding head-on.
A 240g ball and a 130g ball are connected by a 32 cm-long massless, rigid rod. The structure rotates about its center of mass at 150rpm.
Find (a) magnitude and (b) direction of A - B. (Give the direction as a positive angle with respect to due east). Find out the (c) magnitude and (d) direction of B - A. (Give the direction as a positive angle with respect to due west).
Astronaut Ann wishes to travel from one side of her spaceship to the other side so she pushes herself away from a wall, What is Ann's speed relative to Bob as she drifts across the spacehip
Sun is falling towards a supermassive black hole in the centre of a galaxy. At some point, the star will start to be torn apart; for what black hole mass M(crit) does this happen at the event horizon?
A dolphin located in sea water at a temperature of 25°C emits a sound directed toward the bottom of the ocean 130 m below. How much time passes before it hears an echo
A dockworker applies a constant horizontal force of 72.0N to a block of ice on a smooth horizontal floor, What is the mass of the block of ice
A converging lens (f=+20cm) is located 60cm to the left of a diverging (f=-30cm). What is the overall magnification of the object
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