A football player runs 20 meters North of a football field, and then 15 meters East. The total motion lasted 15 seconds. What was his average speed

Suppose that 0.95 g of water condenses on a 75.0 g block of iron that is initially at 22 °c. if the heat released during condensation is used only to warm the iron block, what is the final temperature (in °c) of the iron block?

In a well thought out and coherent paragraph, explain how stars are categorized in an HR Diagram

What does a "tail" do for the kite. Is it always necessary? ... why or why not.

A force of 30n is applied to a screwdriver to pry the lid off of a can of paint. The screwdriver applies 75n of force to the lid. What is the mechanical advantage of the screwdriver

What is the metric unit for weight?

In a research facility, a person lies on a horizontal platform which floats on a film of air. When the person's heart beats, it pushes a mass m of blood into the aorta with speed v, and the body and platform move in the opposite direction with speed

What are some ways the oceanic crust and the continental crust are alike?

Why is gangue sometimes reprocessed.

4.7 cm. The tube is sealed at one end and loaded with lead shot to give it a total mass of M = 130 g. The tube floats in water (of density 1 g/cm3) in vertical position, loaded end down.

Why is it incorrect to say that vascular tissue, gametophytes, and fronds are all found mosses