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A 20000kg rocket has a rocket motor that generates 3.0×10^5 N of thrust.
What is the rocket's initial upward acceleration?
At an altitude of 5.0km the rocket's acceleration has increased to 6.0m/s^2 . What mass of fuel has it burned?
A grinding wheel of radius 0.340m rotating on a frictionless axle is brought to rest by applying a constant friction force tangential to its rim. The constant torque produced by this force is 64.5 N • m. Find out the magnitude of the friction forc..
A particle of mass 0.450 kg is attached to the 100-cm mark of a meter stick of mass 0.175 kg. Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 50.0-cm mark
A 20 kg loudspeaker is suspended 2.0m below the ceiling by two cables that are 30 degrees from vertical. what is the tension in the cables
A 2kg ball is rolling East (without slipping) down a hill that makes an angle of 30° with the horizontal. find the net acceleration at the instant the ball is kicked
In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles, What is the magnitude of Betty's force
Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 18cm, what's the balloon's new radius
It takes a minimum distance of 48.96 m to stop a car moving at 12.0 m/s by applying the brakes (without locking the wheels). find the minimum stopping distance
A straight horizontal pipe with a diameter of 1.0 cm and a length of 53 m carries oil with a coefficient of viscosity of 0.11 N · s/m2. Find the gauge pressure at the pipe input
two paths lead to the top of a big hill. one is steep and direct while the other is twice as long but less steep. how
q1. what are sunspots and how are they related to the suns magnetic field? is the magnetic field stronger weaker in
What value of capacitance will ensure that an output voltage stays within 3 percent of the rated 22v . find an electric field between them and surface charge density on the plate.
An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. Find the size and the nature of the image
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