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A 0.40 kg ball, attached to the end of a horizontal cord, isrotated in a circle of radius 1.3 m ona frictionless horizontal surface. If the cord will break when thetension in it exceeds 63 N, what is the maximum speed the ball can have?
m/s
A leather ball of circumference 75.1 cm and mass 583 g is forced to the bottom of a swimming pool and then released. Calculate the buoyant force on the ball
A tractor tows a plane from its airport gate, doing 8.9MJ of work. How far does the tractor move the plane
question1a 93 kg lumberjack stands at one end of a 379 kg floating log. both the log and the lumberjack are at rest
A point mass of 1kg collides elastically with a stationary point mass of 5 kg. calculate total momentum of system and kinetic energy of centre of mass
A concave mirror has a focal length of 60.7 cm. (a) What is its radius of curvature? cm (b) Locate the image when the object distance is 100 cm. (Indicate the side of the mirror with the sign of your answer.) cm (c) Locate the image when the object d..
a cement block accidentally falls from rest from the ledge of a 74.3 -m-high building. when the block is 10.6 m above
A 11.1-kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 10.3 m/s, determine the following. (a) the translational kinetic energy of its center of gravity ____J (b) the rotational kinetic en..
A commuter train blows its horn as it passes a passengerplatform at a constant speed of 40.0m/s. What is the frequency observed by a person on the platform as the train approaches
Two lightbulbs have cylindrical filaments much greater in length than in diameter. The evacuated bulbs are identical except that one operates at a filament temperature of 2 195°C and the other operates at 2 085°C. Find the ratio of the power emitt..
your friends 13.5 g graduation tassel hangs on a string from his rearview mirror. when he accelerates from a stoplight
How much current is contained within the width of a thin ring concentric with the wire if the ring has the radial width of 12.0 µm and is at a radial distance of 1.2 mm.
Two small charges with a mass of 1.0 g each are connected by 2.0-cm-long insulating rod of negligible mass. What is the dipole moment of the rod?
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