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Question: The pressure at the top of the water in a city's gravity-fed reservoir is 1.0 x 105N/m2.
Part A: Determine the pressure at the faucet of a home 39 m below the reservoir.
Express your answer to two significant figures and include the appropriate units.
Conservation of Energy A roller-coaster car with a mass of m moves along a smooth track as diagrammed in the graph below. The car leaves point A with no initial velocity and travels to other points along the track. The zero energy level is taken a..
A scientist changes the frequency of an incident X-ray to 4.50e19 Hz and measures the deflected X-ray frequency of 4.32e19 Hz. What was the angle of deflection
The speed of light in a material A is 1.4 times as large as it is in material B. What is the ratio of the refractive indices, nA/nB, of these materials
a proton is sent into a region of constant magnetic field oriented perpendicular to the protons path. there the proton
The 10-cm-wide, zero-resistance slide wire shown in (Figure 1) is pushed toward the 1.5 Ω resistor at a steady speed of 0.40 m/s . The magnetic field strength is 0.30 T, What is the magnitude of the pushing force?
A 1.15 m long ramp is inclined at 19 degrees to the horizontal. A solid ball is released from rest at the top of the ramp. Find the ball's speed at the bottom of the ramp
Two boats are initially separated by distance d and head directly toward one another. The skippers of the boats want to arrive at the same time at the point that is halfway between their starting points.
A 5 kg and a 3 kg box rest side by side on a smooth, level floor. What is the magnitude of the contact force between the blocks
An engine with an output of 267.0 W has an efficiency of 39.0 %. It works at 9.00 cycles/s. How much heat is rejected each cycle
A 65 kg man in a 5.9 kg chair tilts back so that all his weight is balanced on two legs of the chair. Assume that each leg makes contact with the floor over a circular area of radius 0.9 cm.
A 20 kg crate rests on a level surface. the surface has a coefficient of kinetic friction of 0.15 and a coefficient of static friction of 0.3. what is the minimum force necessary to begin sliding the crate across the floor? Please show all work an..
q1. a 78.9 kg man steps off a platform 4.57 m above the ground. he keeps his legs straight as he falls but at the
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