A(1.25+a) kg bowling ball is hung on a (2.50+b) m long rope. it is then pulled back until the rope makes an angle of (12.0+c)o with the vertical and released. find the tension in the rope when the ball is at the lowest point. give your answer in n and with 3 significant figures.

In science and physics what is the standard unit of measure for speed?

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?