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1. Your friend's mass is 65kg. If she jumps off a 110-cm high table, how far does the Earth move toward her as she falls?
2. A 2.4kg object is moving along the x-axis at 1.55m/s. As it passes the origin, two forces F1 and F2 are applied, both in the y direction (plus or minus).
The forces are applied for 2.85s, after which the onject is at x=4.42m, y=11.0m. If F1=18JN, What's F2?
A force acts on a block weighing 45N. The block is initially at rest on a plane inclined at angle θ = 18.0° to the horizontal. The positive direction of x axis is up the plane.
An astronaut travels to an alternate universe that contains infinite charged plane and no other charged objects. The astronaut observes that the electric field in this universe has a magnitude of 1.20 N/C everywhere and points directly away from the ..
What are the first, second, and third frequencies audible from a 20cm long organ pipe when (1) only one end is open and when (2) both ends are open. The speed of sound through the air inside the organ pipe is 343 m/s. (Hint: if a harmonic does not..
How would you determine the density of an irregularly shaped rock, Is buoyant force a conservative force
An RLC circuit is used in a radio to tune into an FM station broadcasting at f = 99.7 MHz. The resistance in the circuit is R = 12.4 ?, What capacitance should be used
A small piece of Styrofoam packing material is dropped from a height of 1.50 m above the ground. Until it reaches terminal speed, magnitude of its acceleration is given by a = g - bv. After falling 0.40 m, the styrofoam effectively reaches its ter..
Calculate the moment of inertia and the rotational kinetic energy for the following objects spinning about a central axis
An ambulance with a siren emitting a whine at 1200 Hz overtakes and passes a cyclist pedaling a bike at 2.44 m/s, How fast is the ambulance moving
A heat engine does 376.88 J of work per cycle while exhausting 648.92 J of heat to the cold reservior. what is the cold reservior temperature in degrees Celsius
A house has a floor area of 115 m2 and an outside wall that has an area of 24 m2. The earth's magnetic field here has a horizontal component of 2.50 e 10-5 T that points due north and a vertical component of 4.30 e 10-5 T that points straight down..
A 4.00kg block slides down a frictionless inclined plane with an acceleration 3.00,/s^2. What is the angle of the incline above the horizontal
What is the gauge pressure of the water at the pump? Suppose steady, laminar flow of water, no viscosity, and no air drag on the water jet. The acceleration of gravity is 9.81 m/s2.
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