Determine the velocity of the rocket after fuel has burned
A 4.00-kg model rocket is launched, expelling 54.0 g of burned fuel from its exhaust at a speed of 690 m/s. What is the velocity of the rocket after the fuel has burned? Hint: Ignore the external forces of gravity and air resistance.
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During a violent thunderstorm, hail the size of marbles (diameter = 1.6 cm) falls at a speed of 36 m/s. There are estimated to be 50 hailstones per cubic meter of air. Assume that, as for ice, 1 cm3 of hail has a mass of 0.92 g. What is the mass o
When we say that something gives us "energy," what does that mean? What is a biological definition of energy?
Steams enter an adiabatic turbine at 300? and 4ookPa. It exists as a saturated vapor at 30kPa. Determine the change in enthalpy and internal energy.
What makes Hermocrates Athens's most potent (and strangely familiar) enemy? It should be no more than 2 pages double spaced there isn't really a word limit though?
Write a paragraph about the result of the test of carbohydrates and lipids for benedict's test, lugol's test, uncoated paper test, sudan IV test, and Biuret test
A -5.00nC point charge is on the axis at x= 1.20 m . A second point charge Q is on the x axis at -0.600m. What must be the sign and magnitude of Q for the resultant electric field at the origin to be 45.0 N/C in the +x direction?
How effective is this? How effective is this?
An electric force of 4.0 N exists between two objects separated from each other by a distance of r. If the distance is decreased to 0.50r, calculate the magnitude of the force between the two objects.
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