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A tuning fork vibrating at an unknown frequency is held over the open end of a tube partially filled with water. If the fundamental resonant mode is heard when the water level is 30cm below the open end, what is the frequency of the tuning fork?
Two parallel rods are each 0.50 m in length. They are attached at their centers to either end of the spring (spring constant = 150 N/m) that is initially neither stretched nor compressed.
Calculate : a) the pressure at this depth b) the change in volume of the sphere do to the pressure GIVEN : density of copper = 8.9*10^3 kg/m^3 youngs modulus = 11*10^10 N/m^2
A large asteroid of mass 71700 kg is at rest far away from any planets or stars. What is the speed of the second asteroid
A 0.140-kg baseball is dropped and reaches a speed of 1.20 m/s just before it hits the ground and bounces. What is the change of the ball's momentum during the bounce
A 2500 kg truck moving at 10 m/s strikes a car waiting at a traffic light, hooking bumpers. What was the mass of the struck car
q1. diffraction also occurs with sound waves. consider 1900-hz sound waves diffracted by a door that is 87 cm wide.
How does the frequency of harmonic motion change if we take a spring of seven times the modulus, increases or decreases by a factor of how much
3 point charges are placed on the x-y plane: a +50.0 nC charge at the origin, a -50.0 nC charge on the x-axis at 10.0 cm, Find the total electric force on the +150 nC charge due to the other two
A coil is connected in series with a 10.0k? resistor. A 50.0 V battery is applied across the two devices, How much energy is stored in the coil at the same moment
Which container has more gas molecules?
You attach a meter stick to an oak tree, such that the top of the meter stick is 2.67 meters above the ground. how high above the ground was the acorn before it fell
A submarine is stranded on the bottom of the ocean with its hatch 38 m below the surface. Calculate the force needed to open the hatch from the inside
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