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A parallel beam of light containing red (660 nm) and violet (410 nm) wavelengths goes from diamond to water, striking the surface between them at a 19° incident angle. What is the angle between the two colors in water?
when it falls back it hits the ground with speed v1=50m/s. The mass of the ball is m=20g. Illustrate what is the total work done by the drag force while the ball is in the air?
If the boy is traveling at 1 m/s relative to the ground, explain how fast does the boy appear to be moving relative to the woman? show your work.
What is the electric flux through the circle when its face is perpendicular to the field lines?
At a certain time a model car's speed was 24 m/s in the positive x direction, What was the average acceleration of the car during this 8.0 s interval
A 55kg pole vaulter running at 10m/s vaults over the bar. If the vaulter's horizontal component of velocity over the bar is 1.10m/s and air resistance is disregarded, how high was jump.
Two bicycle tires are set rolling with the equivalent initial speed of 5.0 m/s along a long, straight road, and distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 {rm psi} and goes the dist..
An object moves up and down y-axis with an acceleration given as a function of time t by the expression a = A sin ω t, where A and ω are constants. What is the period of this motion.
A gas is compressed at a constant pressure of 0.800 atm from 12.00 L to 3.00 L. In the process, 380 J of energy leaves the gas by heat. (a) What is the work done on the gas? J (b) What is the change in its internal energy?
A capacitor with air between its plates is charged to 70 V and then disconnected from the battery. When a piece of glass is placed between the plates, the voltage across the capacitor drops to 50 V. What is the dielectric constant of this glass?
what is the equivalent resistance between points A and B?
A bird stands on a dc electric transmission line carrying 3300A (Figure 1) . The line has 2.7×10?5? resistance per meter, and the bird's feet are 3.5cm apart
A butterfly at eye level is 26 cm in front of a plane mirror. You are behind the butterfly, 48 cm from the mirror. What is the distance between your eye and the image of butterfly in the mirror.
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