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Periodic waves spread out of the surface of a lake where two women, Jenny and Melissa, are fishing in separate boats 38 meters apart. Each woman's boat bobs up and down 19/min. At a time when Jenny's boat is at a crest, Melissa's boat is at its lowest point, and there are 6 additional crests between them.
a) Calculate the wavelength of these water waves.
b) And what is the speed of these water waves?
Assuming the phase constant to be zero, write out the wave function of the wave. Find the transverse speed of a point on the string at x = 2.0 m at time t - 4s.
An airplane with a speed of 76 m/s is climbing upward at an angleof 44° with respect to the horizontal. When the plane's altitude is 500 m, the pilot releases apackage.
A rubber ball has a diameter of 29.7 centimeter and a mass of 0.6000. Determine what force is required to hold the ball
A single convex lens projects a focused image of an object onto a screen. If the lens is 15 cm from the object and and 36 cm from the screen, what is the focal length of the lens
a gymnast is performing a floor routine. In a tumbling run she spins through the air, How much time does this maneuver take
A 9.0-g piece of Styrofoam carries a net charge of -.65, What is the charge per unit area on the plastic sheet
Carolyn rides her bike? = 38.1° south of west for d = 4.60 miles as illustrated in the figure below. What is the distance she would have to ride due south and due west to reach the same location?
What is the magnitude of the normal force exerted by the car.
A boy exerts a force of 225 N on a lever to raise a 1.25 x 10 3-N rock a distance of 13 cm. If the efficiency of the lever is 88.7%, how far did the boy move his end of the lever?
A Dynamics cart with its plunger depressed is placed at a certainheight on a inclined plane at a known angle how can the coefficientof kinetic energy be calculated if the mass, the height, the angleand spring constant are known?
If a curve with a radius of 80 meter is perfectly banked for a vehicle traveling 69 km/h, find what must be the coefficient of static friction for a vehicle not to skid when traveling at 87 km/h
1. Which one of the following is required for electric potential?
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