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1. What is true of the net force when 3 or more forces are in a state of equilibrium, explain.
2. If a force (F) make an angle (theta) with the x-axis, what are the formulas used to the x and y components of this force?
3. When finding the vector sum (resultant force) of two forces, does the orientation of the x-y axis have and effect on this vector sum? explain. (HInt: would the resultant foce and the direction of this force change if the x-y axis were rotatted one way or the other?)
illuminate the object with the flashlight. One way to produce artificial gravity in a space station is to spin it.
Suppose the Eskimo is pushing the same 50.0-kg sled across level terrain with a force of 50 N. If he does 4 x 10^2J of work on the sled while exerting the force horizontally, through what distance must he have pushed it.
What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20^circ {rm C}? Suppose that the air bubble is always in thermal equilibrium with the surrounding water.
What is the maximum positive potential energy. Write down an expression for U as a function of x, with U in joules and x in meters.
A cylinder with a piston contains 0.250 mol of oxygen at 240000 pascal and 355 kelvin. The oxygen may be treated as an ideal gas. The gas first expands isobarically to twice its its original volume. It is y then compressed isothermally back to its..
A particle starts at rest at point p and moves to point q with uniform acceleration, Find the distance between p and q. Also find the acceleration of the particle
The force on a particle is directed along an x axis and given by F = 0.97(x/4.6 - 0.52) where x is in meters and F is in Newtons. Find out the work done by the force in moving the particle from x = 0 to x = 8.9 m.
A 2.20 sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as heart beats. The reflected sound is after that mixed with the transmitted so..
What is the fractional change in the period of the pendulum.
Classically, the electron cannot pass through the barrier because E
A jeweller working with a heated 44 g gold ring must lower the ring's temperature to make it safe to handle. If the ring is initially at 94 degrees Celsius, what mass of water at 25 degrees Celsius is necessary to lower the ring's temperature to 35 d..
From another measurement, you have found that velocity of the jumper's center of mass has only a y component of v2=2.5 m/s as the jumper's feet leave the floor.
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