Assume that block a which has a mass of 30kg is being pushed to the left with a force of 75n along a frctionless surface. what is the friction for of block a on block b if thw block b has a mass of 24 kg and is accelerating at 0.50m/s2 to the right relaitve to the block a?
weight
normal force of the ground, weight
friction of the road, the normal force of the ground, force of the ground against the wheels pushing the car forward, weight

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom

The weights of bags filled by a machine are normally distributed with a standard deviation of 0.05 kilograms and a mean that can be set by the operator. at what level should the mean weight be set if it required that only 1% of the bags weigh less than 9.5 kilograms? round the answer to 2 decimal places.