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1. If there was water in a U-Tube (full with water), with one sideclosed with a stopper, would the pressure at a point touching thestopper be greater than, less than, or equal to atmosphericpressure? Explain a little.2. Would the pressure begin to increase as you go from the openpart of the U-Tube to the closed side? Or no?3. If the water level was lowered (so the top of the water level ishalfway through one side of the U) would the pressure of differentpoints along the tube from the first question be lowered? or staythe same? Explain a little.
The generator at a power plant produces AC at 24000 V. A transformer steps this up to 345,000 V for transmission over power lines. how many turns must there be in the output coil
two billiard balls of equal mass undergo a perfectly elastic head-on collision. if one balls initial speed was 2.50 ms
A square room has 3 mirrored walls of length L with one side missing. A laser is fired from the center of the open side of the room with an angle of incidence, I, what must the angle of incidence be
a crowbar 2m long is used to lift a rock 800n. if the fulcrum is 0.25m from where the crowbar touches the rock, how much effort must be applied to move the rock
The longest recorded pass in an NFL game traveled 83 yards in theair from the quarterback to the receiver. Assuming that thepass was thrown at the optimal 45 degree angle, what was the speedat which the ball left the quarterbacks hand?
the four tires of an h3 are inflated to absolute pressure of 2.5x 105 pa each tire has area of .05 m2 in contact with
In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016kg and a radius of 9.90km, What is the escape speed from the asteroid
A 5.00--long ladder has mass 12.5 kg and is leaning against a frictionless wall, making a 64 degree angle with the horizontal. If the coefficient of friction between the ladder and ground is 0.42, what is the mass of the heaviest person who can safel..
Assuming that average separation between two protons in 12C is equal to the nuclear diameter, compute the coulomb force of repulsion and gravitational force of attraction between the protons. If the nuclear potential seen by the protons is 50 MeV for..
if you decrease the hanging mass by a factor of four( 0.55 kg/4) but keep the linear mass density the same, by what factor does the fundamental frequency change
Jack and a friend skiing in the colorado mountain. they first see an avalanche on mountain side 1.5 miles away from them. what is the power the avalanche is producing the sound
An electron microscope operates with electrons of kinetic energy 40keV. What is the wavelength of these electrons? (h= 6.626 x 10^-34 J/s, 1eV= 1.6 x 10^-19 J, and me= 9.1 x 10^-31kg)
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