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In 1994, Susan Williams of California blew a bubble-gum bubble with a diameter of 58.4 cm. If this bubble were rigid and the centripetal acceleration of the equatorial points of the bubble were 8.5E-2 m/s2, what would the tangential speed of those points be?
a 1.99 kg block slides on a rough, horizonatl surface. The block hits a spring with a speed 2.16 m/s, what is the force constant of the spring
A hockey puck is sliding across a frozen pond with an initial speed of 9.7 ms. It comes to rest after sliding a distance of 44.0 m. What is the coefficient of kinetic friction between puck and ice.
A spring is compressed by 0.0527 m and is used to launch an object horizontally with a speed of 2.19 m/s. at what angular frequency (in rad/s) would it oscillate
A bicycle racer sprints at the end of a race to clinch a victory. The racer has an initial velocity of 13.0 m/s, What is his final velocity
A tiny 0.0250 -microgram oil drop containing 15 excess electrons is suspended between to horizontally closely-spaced metal plates, Which plate must be positive, the upper one or the lower one
A Federation starship ( 2.20×10^6kg ) uses its tractor beam to pull a shuttlecraft ( 2.20×10^4kg ) aboard from a distance of 12.0km away. The tractor beam exerts a constant force of 4.0×104N on the shuttlecraft. Both spacecraft are initially at..
A 50 kg bag of sand ar 25 degree C falls 10 m onto the pavement and comes to an abrupt stop. What is the dissapative work done on the sand
A person of mass 80 kg stands at the center of a rotating merry-go-round platform of radius 2.7 m, find the angular velocity when the person reaches the edge
An automobile has a total mass of 1700 kg. It accelerates from rest to 40 km/h in 10 s. Assume each wheel is a uniform 32 kg disk. find the total kinetic energy of each wheel
water travels through a 9.6 cm diameter fire hose with a speed of 1.3 m/s. At the end of the hose, find the speed of the water coming out of the nozzle
What is the height of the hill . Find the coefficient of kinetic friction between flight bag and floor.
For a temperature increase of ?T1, a certain amount of an ideal gas requires 30 J when heated at constant volume, How much work is done by the gas in the second situation
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