Physics Answers

A Uniform chain with mass per unit length L is lifted upwards with a constant speed by a force F. Find out the force in terms of time

Two arrows are shot from opposite sides of a 4.0m deep canyon. The arrows land in the same spot on the floor of the canyon at the same time. One is shot at an 80 degree angle, the other is shot at a 20 degree angle. The total time it takes the arrow shot at 80 degrees to land is 14 seconds. How do you determine the initial velocity of either of the arrows

Calculate entropy change if 2 kg of water at 331 K is heated to 333 K at 1 bar pressure. The specific heat capacity of water is 4200J/kg.K.

In a Michelson’s Interferometer 200 fringes cross the field of view when the movable mirror is displaced through 0.0589 mm. Calculate the wavelength of monochromatic light used.

While mammals keep their body temperature close to the 37oC, some animals, such as crustaceans, are exposed to a much wider range of temperatures. For example, antarctic crustaceans live at a temperature of around 2oC. Assuming no other changes how might the Nerst potential for an ion change when warming from 2oC to 37oC?

A monkey jumps from a branch that is 5 meters above the ground. Ignoring air resistance how long does it take to reach the ground?

A pendulum has a mass of 25 kg and is swinging on a rope that is 4 meters long How much gravitational potential energy does the pendulum have when the rope is completely horizontal? How much gravitational potential energy does the pendulum have when the rope is completely vertical?

A 50 kg object accelerates uniformly from rest to a speed of 10.0 m/s in 0.5 seconds. The object's acceleration is ___.

Calculate the accelerating force needed to change the speed of 20lb object from 18ft/s to 50ft/s in a distance of 40ft

A point object on by force 4N 5N and 6N if 6N force removed what will be resultant force