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A weather balloon filled with helium gas has a volume of 306 m3 and pressure 1.4 105 Pa at the Earth's surface (where the temperature is 293 K). The balloon is then released and moves to a high altitude, where the pressure in the balloon is 26500 Pa and the temperature is 253 K (?20°C). What is the new volume of the balloon?
A laser beam is incident on two slits with a separation of 0.190 mm, and a screen is placed 5.30 m from the slits. what is the wavelength of the laser light
A cubic box of volume = 0.34300m^3 is filled with air at atmospheric pressure at 20.000*C. What is the net force on one side of the box
Standard mathematical constants and symbols (e.g. pi), you may only use the symbols shown in the figure and question description - Which of the following plots correctly represents the electric field intensit
If this system is used with a detector with an intrinsic pulse height resolution of 4%, what will be the expected overall pulse height resolution
A uniform charged disk of radius 30.0cm carries charge with a density of 8.00x10^-4 C/m^2. Calculate the electric field on the axis of the disk at
A 1890 kg truck traveling north at 45 km/h turns east and accelerates to 51 km/h. What is the change in the truck's kinetic energy
at the surface of the earth what is the force on the rocket due to gravity when the rocket has reached an altitude of 1.2 x 104 km
Find out the speed of a 56.7 kg thrill seeker at the bottom of the slide, assume no friction. If the thrill seeker has a speed of 24.1 m/s at the bottom, find out the change in mechanical energy due to friction.
A 66 {rm kg} skier speeds down a trail, as shown in the figure . The surface is smooth and inclined at the angle of 22 ^circ with the horizontal. Find the magnitude of the net force acting on the skier.
Force F = (1.0 N) + (-1.0 N) acts on a pebble with position vector r = (2.70 m) + (-2.1 m) , relative to the origin. What is the resulting torque acting on the pebble about the origin
An electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate, What is the kinetic energy of the electron just as it reaches the positive plate
Blocks of mass 20, 80, and 240 kg are lined up from left to right in that order on a frictionless surface so each block is touching the next one. What is the magnitude of the force that the left block exerts on the middle one
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