Determining the velocity of the rocket
A 4.00-kg model rocket is launched, expelling 60.0 g of burned fuel from its exhaust at a speed of 670 m/s. What is the velocity of the rocket after the fuel has burned?
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What is the acceleration of two falling sky divers (mass 106.0 kg including parachute) when the upward force of air resistance is equal to one-fourth of their weight?
If the river velocity is 40 cm/sec and the longitudinal dispersion coefficient is0.1 m2/ sec, what is the maximum concentration expected at the plant.
a 244 g particle is released from rest at point A inside a smooth hemispherical bowl of radius 35.2 cm, calculate the gravitational potential energy at relative to B
A 61.9 kg person jumps from rest off a 2.86 m-high tower straight down into the water. Neglect air resistance during the descent. She comes to rest 1.13 m under the surface of the water. Determine the magnitude of the average force that the water
a sample of of myoglobin with mass 1.00g is dissolvd in 100ml of aqeous solution. Theosmotic pressure of the solution is 11.0 torr at 25.00degree celcius . find the molar mass of myoglobin ?
The stone is moving around the path at a constant frequency of 2.20 rev/sec. At the moment the stone is overhead, the stone is released. The magnitude and direction of the velocity of the stone when it leaves the circular path is ??
It takes 480. J of energy to raise the temperature of 103.1 g mercury from 20.0°C to 53.5°C. Calculate the specific heat capacity and the molar heat capacity of mercury.
A large box whose mass is 20 kg rests on a frinctionless floor. A mover pushes on the box with a force of 250 N at an angle of 35 degrees below the horizontal. What is the acceleration of the box across the floor?
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