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A plate of glass with parallel faces having a refractive index of 1.46 is resting on the surface of water in a tank. A ray of light coming from above in air makes an angle of incidence 32.0 with the normal to the top surface of the glass.
What angle does the ray refracted into the water make with the normal to the surface? Use 1.33 for the index of refraction of water.
What is eccentricity of the transfer ellipse
An undersea research chamber is spherical with an external diameter of 4.60m . The mass of the chamber, when occupied, is 51100kg. What is the buoyant force on the chamber
A uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m from the wall. The ladder weighs 180 N. What is the actual frictional force when the man has climbed 1.0 m along the ladder
Identify (a) the magnitude (in km) of the car's total displacement from its starting point and (b) the angle (from east) of the car's total displacement measured from its starting direction.
A cook puts 9.20 g of water in a 2.00-L pressure cooker that is then warmed to 470°C. What is the pressure inside the container
a person's reaction time is generally not quick enough to allow the person to catch a dollar bill dropped between the fingers. If a typical reaction time in this case is 0.25 s
A 4kg cart is initially moving at 3m/s on a frictionless track. It then hits an incline and stops 2m later. what is the net work done on the cart
A runner accelerates to a velocity of 5.36 m/s due west in 3 s. His average acceleration is 0.64 m/s2, also directed due west. What was his velocity when he began accelerating
Dolphins and other sea creatures can leap to great heights by swimming straight up and exiting the water at a high speed. How much time does it take for the dolphin to come to rest
Explain how much work does the spring do on the block if the spring is stretched from relaxed length by 15.1 mm as the block is moved?
A parachutist with mass 86.0 kg jumps from an airplane traveling at a speed vi=112 km/hr at a height H=2570 m. He lands with a speed of vf=5.21 m/s.
A 43.0kg seal at an amusement park slides from rest down a ramp into the pool below. what is the work done by kinetic friction
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