Why there is a difference between 'actual' mechanical advantage and 'ideal' mechanical advantage.

A cart is rolling across the floor at a constant velocity of 2 m/s to the right. The cart is pushed again to the right, and it starts to accelerate. How are the force of the push and acceleration of the cart related?

14) the formula k2s indicates that a) the potassium ion is twice the size of the sulfide ion b) sulfur and potassium form a covalent bond c) there are two potassium ions for each ion of sulfur d) there are two sulfur ions for each ion of potassium

What is meant by the term conservation of mass

What happens to a light wave traveling through diamond that strikes a boundary with water at a 45 degree angle? (APEX) a. it refracts in the water, toward the boundary b. it reflects back into the diamond in the direction it was traveling from c.

What's the most poisonous out of oven cleaner (sodium hydroxide), concrete cleaner (muriatic acid), and Clorox

When a sailboat overtakes a powerboat, which vessel is the stand-on vessel?

Both matter and energy can eneter and exit which of the following systems? A. open only B. both open and closed C. isolated only D. both closed and isolated

1. Find the charge if the number of electrons is 4 x 10-18

Which of the following describes resistance force?

Ursa Minor contains the pole star, Polaris, and the asterism known as the Little Dipper. From most locations in the Northern Hemisphere, all of the stars in Ursa Minor are circumpolar.