Physics, 07.01.2021 02:30 dustinquiz255
Use a ballistic cart to shoot a small ball into the air. Push the cart along a track, allowing it
to release the ball. What explains why the cart always catches the ball, and the ball doesn't
fall behind the moving cart?
Answers: 2
Physics, 22.06.2019 00:10
The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?
Answers: 3
Physics, 22.06.2019 03:00
The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f
Answers: 2
Physics, 22.06.2019 04:10
Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l
Answers: 2
Physics, 22.06.2019 09:00
Sobre transformações cÃclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cÃclica é nula; ii – o trabalho, em uma transformação cÃclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cÃclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
Answers: 1
Use a ballistic cart to shoot a small ball into the air. Push the cart along a track, allowing it...
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