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A balsa wood block of mass 55 gram floats on a lake, bobbing up and down at a frequency of 2.9 Hz.
Part A Find what is the value of the effective spring constant of the water? Express your answer to two significant figures and include the appropriate units.
Part B A partially filled water bottle of mass 0.29 kilogram and almost the same size and shape of the balsa block is tossed into the water. Find at what frequency would you expect the bottle to bob up and down?
a 100 kg cannon at rest contains a 10 kg connon ball. When fired, the cannon ball exits the cannon with a speed of 90m/s. What is the recoil speed of the cannon
an antelope moving with constant acceleration covers thedistance between two points 70.0m apart in 7.00s. its speed as itpasses the second point is 15m/s. what is its speed at the frist point
A ball is thrown straight up with an initial speed of 30m/s. How high does it go, and how long is it in the air(neglecting air resistance)? What are the formulas to calculate the answers to these questions?
An empty parallel plate capacitor is connected between the terminals of a 9.44-V battery and charges up. what is the new voltage between the plates of the capacitor
An object is placed to the left of the converging lens, and the final image produced by the two-lens combination lies 21.2 cm to the left of the diverging lens. How far is the object from the converging lens
the football has a mass of .40kg and the quarterback that threw the ball accelerated it from rest to 25 m/s in a distance of .60m. what force did the player's hand exert on the ball
Charge q1 = 8.5 nC is located at the coordinate system origin, while charge q2 = 3.7 nC is located at (a, 0), In Joules, what is the total potential energy U of the final configuration of three charges
Liquid flows into a tank at 10 m^2/s and flows out of the tank at 3m^2/s. Find at what rate (m^3/s) does volume accumulate in the tank, calculate what is the volume of the tank
A satellite moves around the Earth in a circular orbit of radius r. (utilize G for the universal gravitation constant, M for the mass of the Earth, and r, as appropriate, when answering parts (a), (b), and (c) below.)
an aluminum wing on a plane is 34.8 m long when the temperature is 20 oc. at what temperature would the wing be 0.06 m
Two different simple harmonic oscillators have the same natural frequency (f=7.10 Hz) when they are on the surface of the Earth. Calculate the new frequency of the pendulum
A torque of 12 N * m is applied to a solid, uniform disk of radius 0.50 m. I f the disk accelerates at 5.6 rad/s^2, what is the mass of the disk
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