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1) large helium filled balloons are used to lift scientific equipment to high altitudes. What is the pressure inside such a balloon if it starts out at sea level with a temperature of 8.0 and rises to an altitude where its volume is twenty times the original volume and its temperature is -49. (Temperatures are in Celsius)
a. What is the gauge pressure? (Assume atmospheric pressure is constant.)
2) In the deep space between galaxies, the density of atoms is as low as 1X10^6 atoms/m^3, and the temperature is a frigid 270 K. What is the pressure?
a. What volume (in m^3) is occupied by 1.0 mol of gas?
b. If this volume is a cube, what is the length of its sides in kilometers?
The log has a mass of m = 919 kg; the truck has a mass of M = 8550 kg. According to the truck manufacturer, Calculate the minimum coefficient of static friction
Some cell walls in the human body have a layer of negative charge on the inside surface and a layer of positive charge of equal magnitude on the outside surface, Estimate the total electric-field energy stored in the wall of a cell of this size
A golfer takes two putts to get his ball into the hole once he is on green. The first putt displaces the ball into the ball 6.7 m east, and the second 2.16 m south. What displacement would have been needed to get the ball into the hole on first putt.
A car is driven 175km west and then 55km southwest. What is the displacement of the car from the point of origin (magnitude and direction).
The magnitude of the electrostatic force between two identical ions of mass 1.224×10-25 kg that are separated by a distance of 6.50 nm is 1.770×10-9 N. Calculate the electric field at the site of each ion
If the tension in each chain at the lowest point is 408 N, find the child's speed at the lowest point.
A particle with mass 2.30 g and charge +10.0 uC enters through a small hole in a metal plate with a speed of 8.50 m/s, How far will the particle travel, delta x, before it hits the plate
Imagine two 5.0 g bags of protons, one at the earth's north pole and the other at the south pole. Calculate the gravitational attraction that each bag exerts on the other
A viewing window in the Atlanta aquarium is 50 inches wide and 50 inches high. what is the outward force on the window
A 20 liter tank of helium is at a pressure of 172kPa at a temperature of 0 C. What is the speed of the helium atoms in the tank at this new volume
The intensity level of 33.56 harmonicas in a harmonica band is 87.84 dB. Compute the intensity level generated by one harmonica
How many energy is consumed by a 1.10kW hair dryer used for 11.0min and a 10.0W night light left on for 11.0hr
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