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The displacement of a wave traveling in the positive y direction id D(y,t) = 52 cm sin(5.5^-1y-72s^-1t).
What is the velocity?
What is the wavelength?
What is the amplitude?
What is the frequency?
An infinitely long line of charge has a linear charge density of 4.50×10?12C/m. How close does the proton get to the line of charge
A coil of wire containing N turns is in an external magnetic field that is perpendicular to the plane of the coil and it steadily changing, what will be the induced emf in the coil
Two cars, A and B, travel in a straight line. The distance of A from the starting point is given as a function of time by XA (t)=at+Bt^2, Which car is ahead just after they leave the starting point
A ballerina spins initially at 1.06 revs/second when her arms are extended. She then draws in her arms to the body, find the work involved in increasing her angular speed
if the tension in the string is increased by 1.4%, what will be the new fundamental frequency, if the original was 245 Hz?, and the length of the string is .76m
What is the coefficient of rolling friction μr for the tire under low pressure?
A gas is compressed at a constant pressure of 0.800 atm from9.00 L to 2.00 L. In the process,400 J of energy leaves the gas by heat. What would be the change in its internal energy
A 15kg crate is moved along a horizontal floor by pulling on it with a rope that makes a 30 degree angle with the horizontal, How much work is done by the normal force and frictional force, What is the net work
A uniform 1.80m ladder of mass 6.30kg is leaning against a vertical wall while making an angle of 53.0%u2218 with the floor. How much work did this person do against gravity
A 2.00 cm high object is placed 3.0 cm in front of a concave mirror. If the image is 6.0 cm high and virtual, what is the focal length of the mirror
An electron remains in an excited state of an atom for typically 10-8 s. What is the minimum uncertainty in the energy of the state
A point source of light is submerged 2.3 m below the surface of a lake and emits raysin all directions. What is the maximum radius that this circle could have
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