Which of the following would decrease the mechanical advantage

A) a fulcrum

B) a fixed pulley

C) friction

D) heat

According to Coulomb's law, the force between two charges acts along the straight line joining the charges.

In the two-slit experiment, for the condition of bright fringes, the value of m = + 2 corresponds to a path difference of λ. True or False?

If gold gets hot enough, it will melt. What type of change is this? A. physical only B. chemical only C. physical and chemical

What is the kinetic energy of the rock just before it hits the ground What is the equation?

E. A racing car has a mass of 710kg. It starts from rest and travels 120m in 3.0s. The car undergoes uniform acceleration during the entire 3.0s. What is the unbalanced force applied to the car?

A camera of weight 8.9 newtons is dropped from a drone at a height of 18.6 meters and enters free fall. Assuming no air resistance, what is the final velocity of the camera a moment before it shatters on the ground?

Which scientist first proposed physical laws to mathematically describe the effect of forces on the motions of bodies?

Anyone want to get a conversation going again? lol

What is a characteristic of nuclear fusion but not nuclear fission?

Starting at its rightmost position, it takes 2 seconds for the pendulum of a grandfather clock to swing a horizontal distance of 18 inches from right to left and 2 seconds for the pendulum to swing back from left to right.