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A container with a one-liter capacity at 27°C is filled with helium to a pressure of 2 atm. (1 atm = 1.0x10^5 N/m^2.) How many moles of helium does it hold?
In uniform circular motion, a particle undergoes motion in a circular path with a constant speed. Which of the following statement is false and why?
A 5g lead bullet travelling at 370-m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet whilst the other half is transmitted to the tree, what is the increase in t..
A 63kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.9m/s, How fast is he going as he lands on the trampoline, 2.0 m below
A small plane departs from point A heading for an airport 500 km due south at point B, Determine the proper heading for the plane and the time of flight
a sodium atom emits a photon with wavelength 818 nm shortly after being struck by an electron
During a front-end car collision from 46.5 km/h and with air bags inflated, the acceleration limit for the chest is 60g as the car comes to rest. What force in newtons does the air bag exert on the chest of a 75.5 kg person
An immersible heater coil is to be designed to heat an insulated container with 4 liters of distilled water from 20 degrees to 50 degrees C in less than 30 minutes. what is the resistance of the heating coil
A ski lift carries 900 skiers per hour up a slope with a constant incline of 15 degrees and a vertical drop, How much power is required to run the lift
a ball is thrown upward from the roof of a building, passes the roof going down three seconds later, and hits the ground one second after that. how tall is the building? how fast did the ball strike the ground?
A molecule consists of two atoms. How far from the first atom is the center of mass of the molecule
Two students are on a balcony a distance h above the street. One student throws a ball vertically downward at a speed vi; at the same time, the other student throws a ball vertically upward at the same speed. Answer the following symbolically in t..
When four people with a combined mass of 290 kg sit down in a car, they find that the car drops 0.50 cm lower on its springs. What is the frequency of the car's vibration
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