What two minerals would be most useful as grains on sandpaper

A baseball player is running to second base at 5.03 m/s. when he is 4.80 m from the plate he goes into a slide. the coefficient of kinetic friction between the player and the ground is 0.180, and the coefficient of static friction is 3.14.

Question 1 0/1 pts Africtionless cart is at rest on a tabletop and has a mass of 2.3 kg. It is tied by a massless string resting on a massless and frictionless pulley to a mass of 1.

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A pond changes into a field through the process of

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What is the number one and most important rule to remember in soccer?

Why are convection currents; why are they hotter and colder parts of earth