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A beam of light traveling in air strikes a slab of transparent material. The incident beam makes an angle of 40 degree with the normal, and the refracted beam make an angle of 26 degree with the normal. Obtain the speed of light in the transparent material? (c = 3.0 x 108 m/s)
Suppose a lake has a layer of ice 11 cm thick on its surface. The top of the ice layer is cooled by the atmosphere to -5.25° C. At what rate is heat transferred through a 1.5 cm2 area of the ice
A sinusoidal electromagnetic wave having a magnetic field of amplitude 1.50uT and a wavelength of 430nm is traveling in the +x direction through empty space. What is the amplitude of the associated electric field
A tennis ball is shot vertically upward in an evacuated chamber with an initial speed of 20.0 m/s at time t=0. How high does the ball rise
A 12.0 g bullet is fired horizontally into a 106 g wooden block that is at first at rest on a frictionless horizontal surface and connected to a spring having spring constant 143 N/m.
brooks city has three consolidated high schools each with a capacity of 1200 students. the school board has partitioned
Suppose now that you are at rest relative to the raft standing at the rear end except this time the raft is in the middle of the lake moving at a speed of 4.0 m/s. find the raft's speed relative to a stationary observer
An aircraft weighing 840 Newton is accelerated at 8.3 m/s2 for 5 s, at which time the aircraft launches. Find what force is required to launch the aircraft
A street lamp weighs 180 N. It is supported by two wires that form an angle of 140° with each other. What is the tension in each wire supporting the street lamp
What is the buoyant force on a helium balloon in air if the balloon is spherical with diameter 28.5cm
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 39.2m/s2. Find the maximum height ymax reached by the rocket
On a frictionless horizontal surface, a 1.50 kg mass travelingat 3.50 m/s collides with and sticks to a 3.00 kg mass that isinitially at rest. How much mechanical energy is lost during this process
A tank having a volume of 0.11 m3 contains helium gas at 170 atm. How many balloons can the tank completely fill
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