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A spacecraft drifts through space at a constant velocity. Itthen turns on a jet that provides a constant force in the direction perpendicular to the direction of its initial velocity. What is the shape of the trajectory that the space craft follows after the jet turns on?
A sled weighs 10.0 kg. It is held in place on a frictionless 20.0-degree slope by a rope attached to a stake at the top of the slope. Find the tension in the rope if it is parallel to the slope
The automobile afterwards undergoes a uniform acceleration of -4 m/s2 because of a red light and comes to rest. It remains at rest for 54.6s and next accelerates back to a speed of 25.6m/s at a rate of 2.85m/s2.
A football punter accelerates a football from rest to a speed of 8 m/s during the time in which his toe is in contact with the ball (about 0.26 s). what average force does the punter exert on the ball
A web page designer creates an animation in which a dot on a computer screen has a position R=[4.0cm + (2.4cm/s^2)t^2(i)] + (5.5cm/s)t(j), Find the average velocity of the dot between t=0 and t=2
A particular string of length 3.2 m resonates in four loops at a frequency 360 Hz. What is the distance between two adjacent nodes? What is the frequency of the standing wave that will produce 5 loops?
A 5.000-kg mass starts from rest and slides down an incline that is tilted 5 degrees above the horizontal. What is the acceleration of the mass down the plane
How far from a concave mirror of radius 0.25 m must an object be place for a real image to be formed 1 m from the mirror? What is the magnification of that image
Consider a model of a hydrogen atom in which an electron is in a circular orbit of radius = 5.79×10?11 around a stationary proton. What is the speed of the electron in its orbit?
A u-tube manometer is used to measure the pressure of a vessel under vacuum. Assume the manometer is open to atmospheric pressure (101.325 kPa) and the density of the fluid in the manometer is 12.0 g/cm3. When the vessel is under 11.5 psi of vacuu..
Three solid spheres of lead, each of mass 9.8 kg, are located at three corners of a square with side lengths of 50 cm. determine the magnitude and direction of the acceleration of the smaller object when it is released
You observe that the hammer hangs at rest with respect to the bus when the angle between the rope and the ceiling of the bus is 79. Illustrate what is the acceleration of the bus?
The escape velocity of a bullet from the surface of planet Y is 1823 m/s. Calculate the escape velocity from the surface of the planet X if the mass of planet X is 1.47 times that of Y,
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