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Just as you are about to step into a nice hot bath, a small earthquake rattles your bathroom. Immediately afterward, you notice that the water in the tub is oscillating. The water in the center seems to be motionless while the water at the two ends alternately rises and falls, like a seesaw. There are no other points where the water seems to be motionless. You happen to know that your bathtub is 1.3 long, and you count 10 complete oscillations of the water in 22 .
A) What is the wavelength of this standing wave?
B) What is the speed of the waves that are reflecting back and forth inside the tub to create the standing wave?
A set of crash tests consists of running a test car moving at a speed of 11.8 m/s (26.4 mi/hr) into a solid wall. Calculate the size of the average force which acts on the dummy during that time
A small piece of dust of mass m = 1.0 µg travels through an electric air cleaner in which the electric field is 500 N/C, What is the charge on the dust particle
What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on projectile when it is going down as it did when it was going up.
Three forces act on a moving object. One force has a magnitude of 82.8 N and is directed due north. What must be the direction of the third force
Four charges of equal magnitude Q = 65 nC are placed on the corners of a rectangle of sides D1 = 25 cm and D2 = 10 cm. calculate the numeric value for the horizontal force in N
A 55.0kg archer, standing on frictionless ice, shoots a 90.0g arrow at a speed of 50m/s. What is the recoil speed of the archer
What is the voltage output of a transformer used for rechargeable flashlight batteries, if its primary has 515 turns, its secondary 8 turns, and the input voltage is 124 V, What is the power input
A woman at an airport is towing her 14.0-kg suitcase at constant speed by pulling on a strap at an angle, What is the magnitude of the normal force that the ground exerts on the suitcase
q1. a sanding disk with rotational inertia 2.4 10-3 kgbullm2 is attached to an electric drill whose motor delivers a
A 2000-kg car accelerates uniformly from rest to 120 km/hr in 10 seconds, then maintains constant speed. What is the linear acceleration of the car
A simple magnifying glass can focus sunlight enough to heat up paper or dry grass and start a fire. what is the intensity of the image of the Sun
Write down an energy transformation equation
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