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A closed cylindrical can of fixed volume V has radius r.
(a) Find the surface area, S, as a function of r.
(b) What happens to the value of S as r → ∞?
(c) Sketch a graph of S against r, if V = 10 cm3.
Two spherical asteroids have the same radius R. Asteroid one has mass M and asteroid two has mass 2M. Find the speed of asteroid just before they collide
A diffraction grating 13.5 mm wide has 5270. Rulings. Compute the distance d between adjacent rulings.
Two point charges of 120 nC and 800 nC are separated by a distance of 40 cm. How much energy must be expended to reduce the separation to 30 cm?
The coefficient of static friction between the tires of a car and a horizontal road is 0.450. What is the minimum distance in which the car can stop
A 1442 kg car is traveling south, and a 2028 kg van is traveling west. what is the speed of each vehicle
On a banked race track, the smallest circular path on which cars can move has a radius of 120 m, while the largest has a radius 155 m, Find the smallest speed at which cars can move on this track without relying on friction
A 60 kg block slides along the top of a 100 kg block. The lighter block has an acceleration of 3.8 m/s2 when a horizontal force F= 390 N is applied. Find the acceleration of the 100 kg block during the time the 60 kg block remains in contact
explain the following paradox the potential for the hydrogen atom is spherically symmetric but the p states are not.
A student drops two metallic objects into a 120 g steel container holding 150 g of water at 25°C. What is the mass of the aluminum chunk
A 57 kg tightrope walker stands in the middle of a rope. Her weight makes the rope sag, evaluate the rope tension
Two heavy pendula of mass m are suspended from strings of length l inside a railroad car of mass M that can roll freely on horizontal tracks (ignore the moment of inertia of the wheels).
two identical square conducting plates of side length 4 cm are located at z 0 and z d 1 cm. the plates are aligned
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