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What is the pressure of the air in her compressed lungs, assuming that the temperature of the air remains constant?
A 15.0 tank contains 0.209 of helium at 23.0. The molar mass of helium is 4.00 .How many moles of helium are in the tank? What is the pressure in the tank, in pascals? What is the pressure in the t
Use components to find the magnitude of the resultant displacement of this professor.
In what direction should the crew fly to go directly to the field? Use components to solve this problem.
A football kicker can give the ball an initial speed of 34 m/s. What are the (a) least and (b) greatest elevation angles at which he can kick the ball to score a field goal from a point 45 m in fro
When you quickly move the nozzle away from the vertical, you heard the water striking the ground next to you for another 2.0s. What is the water speed as it leaves the nozzle?
A helicopter is ascending vertically with a speed of 13.6 m/s. At a height of 125 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the groun
A world-class sprinter can burst out of the blocks to essentially top speed (of about 11.5 m/s) in the first 15.0m of the race. What is the average acceleration of this sprinter, and how long does
If the seal will pop off when the force on it exceeds 7.92 N, what total height of water in the long arm will put the seal on the verge of popping?
A charge is spread uniformly along the y-axis from y = 0 to y = +1. The charge density on the y-axis is . Find the electric force on a point charge q placed on the x axis at x = x0
The spheres are brought into contact and then separated to a distance of 3.38 cm. Determine the magnitude of the force that each sphere now experiences.
White light (400 - 700) is incident on a 620 diffraction grating. What is the width of the first-order rainbow on a screen 2.2 behind the grating?
A charge (uniform linear density = 9.4 nC/m) lies on a string that is stretched along an x axis from x = 0 to x = 3.0 m. Determine the magnitude of the electric field at x = 5.0 m on the x axis.
Two point charges lie on the x axis. A charge of +7.5 µC is at the origin, and a charge of -5.5 µC is at x = 10.0 cm. (a) What is the net electric field at x = -2.0 cm? (b) What is the
The car starts from rest, moves in a straight line, and has a speed of 23.0m/s when it reaches the end of the ramp, which has length 124m. What is the acceleration of the car?
A) What is the wavelength of the fundamental harmonic for standing waves in this shower? ( in meters)
Explain the following paradox: The potential for the hydrogen atom is spherically symmetric, but the p states are not. Your explanation should invoe measurable quantities.
A non-uniform electric field is given by the expression E = ay i + bz j + cx k where a, b, and c are positive constants.
An antelope moving with constant acceleration covers the distance 66.0m between two points in time 6.80s. Its speed as it passes the second point is 15.6m/s.
Explain why eigenstates for a particle in a box cannot represent free particles, even if the dimensions are allowed to tend to infinity.
Using the analysis model of a particle in simple harmonic motion, calculate the following. (Give your answer to the thousandths place.) (a) What is the maximum speed of the bob
An electron is released from rest in a uniform electric field. If the electric field is 1.25 kN/C, at the end of 20 ns the electron's velocity will be approximately ------- m/s
A hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake. The sphere has a volume of 0.700 m^3 and the tension in the cord is 900 N . Part
A spherical water drop, 1.60 ?m in diameter, is suspended in calm air owing to a downward-directed atmospheric electric field E = 412 N/C. What is the weight of the drop? How many excess electrons