A worker drops a wrench from the top of a tower 80m tall. What is the velocity when the

wrench strikes the ground?

Solutions with a low pH have which of these properties? - have an - OH value -feels slippery -tastes sour -turns litmus paper blue

2. What is a transformer? Explain how a transformer works including specific details on step up and step down transformers.

Sugar molecules can be oxidized in the cell of animals. This oxidation releases energy for the animal to use. From what soured do the cells get these molecules.

What is the equation for acceleration?

You are driving down the highway late one night at 20 m/s when a deer steps onto the road 35m in front of you. Your reaction time before stepping on the brakes is 0.50s, and the maximum deceleration of your car is 10m/s^2.

What do tire treads, rubber mats, automobile breaks, and tennis shoes have in common. -They reduce friction -they are lubricants -they increase friction -the reduce static electricity

When blue light of wavelength 450 nm falls on a single slit, the first dark bands on either side of center are separated by 45.0

An object is moving east, and its velocity changes from 65 m/s to 25 m/s in 10 seconds. Which describes the acceleration? 4 m/s2 in negative acceleration 4 m/s2 in positive acceleration 9 m/s2 in positive acceleration 9 m/s2 in negative acceleration

Two students walk in the same direction along a straight path at a constant speed-one at 0.90 m/s and the other at 1.90 m/s. •How far would the students have to walk so that the faster student arrives 5.50 min before the slower student? A.) 460s B.

During the process of accretion, each planet-in-the-making, or proto-planet, grew in size and mass. The amount of gravity for the proto-planets is best represented by which graph?