Density of a fluid

A solid cylinder of mass M and radius R starts from rest and rolls down a hill without slipping. The cylinders center of mass drops a total distance h. The cylinder is subject to the downward gravitational force Fg of the Earth.

The drawing shows a skateboarder moving at 6.5 m/s along a horizontal section of a track that is slanted upward by θ = 37° above the horizontal at its end, which is 0.58 m above the ground. When she leaves the track, she follows the

A student sitting on a chair on a circular platform of negligible mass rotates freely on an air table at initial rotational speed 1.7 rad/s . The student’s arms are initially extended with 6.0-kg dumbbells in each hand. As the student pulls her arms in

A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70 kg , and the mass of the bullet is 10 g .

a) What is the potential difference VA − VB between two points A and B situated at 27.0 cm and 54.0 cm respectively from a 4.20 µC point charge

Mary and her younger brother Alex decide to ride the carousel at the State Fair. Mary sits on one of the horses in the outer section at a distance of 2.0 m from the center. Alex decides to play it safe and chooses to sit

A line charge with a variable linear charge density lambda(x) = cx stretches along the x-axis from x=0 to x=L. The total charge is Q.

A sphere of radius R has a radius dependent charge density p = B · r3 in terms of R and B.

Two 2.0-cm-diameter-disks spaced 1.5 mm apart form a parallel-plate capacitor. The electric field between the disks is 5.0×10 5 V/m .