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Three identical charges of 3.0uC are placed at the vertices of an equilateral triangle which measures 30cm on a side. What is the magnitude of the electrostatic force which acts on any one of the char
Dez pours a liquid (n = 1.43) into a container made of glass (n = 1.51). Find the angle of the corresponding refracted ray
Light from a 554-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56) at an angle of 22 °
A very thin sheet of glass (n = 1.5) floats on the surface of water (n = 1.33). What is the thickness of the glass
The sun can be considered an ideal blackbody radiator at a temperature of 5900K, What is the peak wavelength of the distribution
Monochromatic blue light that has a frequency of 6.5e14 Hz is traveling through a piece of flint glass (n=1.66). what angles incidence result in total internal reflection
A steel bicycle wheel (without the rubber tire) is rotating freely with an angular speed of 16.4 rad/s. What is the angular speed of the wheel
A 120 m long copper wire (resistivity 1.68e-8 Ohm*m) has resistance 6 Ohm. What is the diameter of the wire
A 20-m long spacecraft is passing by earth at 0.8c. What is the length of the spacecraft measured within the moving (spacecraft) referencee frame
a student throws a rock with speed 20.0 m/s at 30 degrees off the edge of a cliff. how far horizontally off the edge does it hit the water
a ship's horn can be heard above typical background noise if at intensity level 20 dB. what must be the power of the horn's output to achive this level at 5.0 km away
a physics instrustor shakes a 2.0 m long alumium rod to create the pattern, find is this a transverse wave or a longtudinal wave
A car misses a turn, sinks into a shallow lake, coming to rest on its side with the door horizontal and at a depth of 9.3 m. find the force exerted on the inside of the door by the air
a 150 gm ice cube at 0.0 celcius is dropped into an insulated cup with 200 gm of water at 15 celcius. describe the final mixture after equilibrium has been reached
A block of weight W = 13.5 N, which can slide without friction on a 27.5o incline, By how much will the spring be stretched
a 100 kg wrecking ball savings on a 15.0 m long cable. if is swings from rest 4.0 m above the lowest piont, what is the tension in the cable at the lowest point
A 4.0 kg block is on horizontal table attatched to a 6.0 kg block hanging from frictionless pulley. what is the acceleration of the system
a bathyshpere dives to a depth of 1000 m in the ocean. if the inside is maintained at one atmosphere, what is the net force acting on the round window
A magnetic field is oriented at an angle 42 degrees to the normal of a rectangular aread 5.5 cm by 6.8 cm. evaluate the strength of the magnetic field
For an equilateral prism, the angle of incidence of 49 degree at boundary 1, Calculate the angle of refraction at boundary 2
You hold a small plane mirror 0.50 m in front of your eyes, Find the height of the bottom of the mirror such that the lowest point the person can see on the building is 22.9 m above the ground
A block slides down a frictionless plane having an inclination of θ = 19.1 °. Find its speed when it reaches the bottom of the incline
When jumping straight down, you can be seriously injured if you land stiff-legged. In a stiff-legged landing he comes to a halt in 2.5 ms. Find the average net force that acts on him during this time
James Bond is riding a bike at 15 m/s, chasing Car #1 moving in the same direction at 35 m/s. Behind James is another car, Car 2, What is the beat frequency he hears
One object is at rest, and another is moving. The two collide in a one-dimensional, completely inelastic collision. Determine the final speed of the two-object system