How do you calculate energy lost due to friction in an experiment?

So once i was 7 i asked my mom what will it take to add velocity to a bike she said force so what is the equation to solve speed with velocity

Covalent compounds Blank conduct electricity well. A. Always B. Usually C. Rarely D. Never

What is the mass of an object traveling at 30. m/s if it has 33,750j of energy

An octet is formed via ionic bonding when one or more valence electrons are transferred from one atom to another. An octet is formed via covalent bonding when valence electrons are shared between atoms. True or false?

An archerfish, peering from just below the water surface, sees a grasshopper standing on a tree branch that's just above the water. The archerfish spits a drop of water at the grasshopper and knocks it into the water.

Part of the solar radiation entering the atmosphere about ___ actually reaches the earth's surface

A 36.5 kg box initially at rest is pushed 4.30 m along a rough, horizontal floor with a constant applied horizontal force of 150 N. If the coefficient of friction between box and floor is 0.300, find the following.

3 In a television tube, an electron starting from rest experiences a force of 4.0 * 10-15 N over a distance of 50 cm. The final speed of the electron is (do not worry about relativistic effects) :

Detail some of the anthropogenic changes to Earth's climate and their potential impact on life.

I have completed 40 minutes of exercise today and will enter a short description in the course Activity Log. True or False