An object is attached to a spring and oscillates in SHM. Given the time taken for object to reach maximum height from the equilibrium position is 0.25s. (a) Write an expression of x in terms of t.

I’ve already find the amplitude, but to write the expression I need to find angular velocity and i’m a little bit confuse as it the figure didn’t give m and k. How can I find the tension, T by using the time given?

Contrast the force of gravity between these pairs of objects a 1 kg mass and a 2 kg mass that are 1 m apart and two 2 kg masses that are 1 m apart

Na food processing facility, a spherical container of inner radius r1 5 40 cm, outer radius r2 5 41 cm, and ther- mal conductivity k 5 1.5 w/m · k is used to store hot water and to keep it at 100°c at all times. to accomplish this, the outer surface of the container is wrapped with a 800-w electric strip heater and then insulated. the temperature of the inner surface of the container is observed to be nearly 120°c at all times. as- suming 10 percent of the heat generated in the heater is lost through the insulation, (a) express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the container, (b) obtain a relation for the variation of temperature in the container material by solving the differential equation, and (c) evaluate the outer surface tempera- ture of the container. also determine how much water at 100°c this tank can supply steadily if the cold water enters at 20°c.

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.