Physics, 10.07.2019 21:20 bethzabezarahi
You and your younger brother are designing an air rifle that will shoot a lead pellet with mass m 1.00 g and cross-sectional area a = 0.0250 cm2. the rifle works by allowing high-pressure air to expand, propelling the pellet down the rifle barrel. because this process happens very quickly, no appreciable thermal conduction occurs and the expansion is essentially adiabatic. your design is such that, once the pressure begins pushing on the pellet, it moves a distance of l = 45.0 cm before leaving the open end of the rifle at your desired speed of v 110 m/s your design also includes a chamber of volume v = 13.0 cm3 in which the high-pressure air is stored until it is released. your brother reminds you that you need to purchase a pump to pressurize the chamber. to determine what kind of pump to buy, you need to find what the pressure of the air must be in the chamber (in pa) to achieve your desired muzzle speed. ignore the effects of the air in front of the bullet and friction with the inside walls of the barrel. (assume that air is diatomic.)
Answers: 2
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What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics
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Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass
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Physics, 22.06.2019 17:20, treaustin6978
Could we see a galaxy that is 20 billion light-years away?
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You and your younger brother are designing an air rifle that will shoot a lead pellet with mass m 1....
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