Which machine changes the direction of force needed to do a task without changing the size of the force needed?

How does climate change lead to an increase in algal blooms? a. Decreased temperatures lead to an increase in phytoplankton growth. b. Increased levels of carbon dioxide, a greenhouse gas, leads to increased phytoplankton growth. c.

What effect does observing a substance's physical properties have on the substance

A ball is released from a tower at a height of 100 meters toward the roof of another tower that is 25 meters high. The horizontal distance between the two towers is 20 meters.

Why isn't the wave nature of light (visible electromagnetic radiation) obvious to us?

If you put two identical cars on opposite sides of a large magnet, what happens

Which season does the Southern Hemisphere experience when it is tilted toward the sun? A. winter B. summer C. spring D. autumn

For an ideal fluid flowing through a horizontal pipe, Bernoulli's principle and the continuity equation state that the pressure within the pipe does which of the following? (Assume measurements are taken along the pipe in the direction of fluid flow.

A bowling ball has a mass of 40kg and is kicked with a force of 10 N. What is it's acceleration

Sciencium-380 has a half-life of 3 days. If you started with a 100 gram sample, how much Sciencium-380 will remain after 9 days?

What happens to the resistance of a wire as it gets wet