The dimensions of a block that weighs 30 N are 0.23 mx 0.12 mx 0.075 m.

What pressure does the brick exert on the ground if it is resting on its largest

face?

In double-blind studies neither the test subject or the researcher knows who was given the drug and who was given the control.

The atomic number is similar to a finger print because? A. they can both have positive charge B. all elements share the same number C. No two elements have the same number

Suppose that two pith balls, each with a charge of 1 Coulomb, are hanging in the lab room, seperated by a distance of 1 meter, and applying a force on eachother. What will be the magnitude of the electrostatic force between them?

If a person weighs 90 N on Earth, and the gravitational acceleration due to the Moon's gravity is 1.62 m/s2, how much would the person weigh on the Moon?

Choose all the answers that apply. Which of the following are chemical changes? rusting souring melting boiling freezing

you can produce a sound by plucking a string or by blowing in a pipe. how are these two ways different?

There are four springs stretched by the same mass. Spring A: 25 cm Spring B: 10 cm Spring C: 100 cm Spring D: 1 cm Which spring is the strongest? A B C D

Consider a rough asphalt roadway with 17 cm curbs and one 3.75 m lane in each direction and a 1.45 m shoulder on each side. The road has a longitudinal slope of 0.75% and is crowned in the center with a transverse slope of 2.25%.

An example of an opinion would be which of the following? bob s burgers is the best show on television. cake is appropriate for many occasions. earth is 238,900 miles from the moon. none of these

Which is a concern about mining for uranium? -Heated water could be released into the environment. -Dust released in the air could be radioactive. -Supplies could become low during a drought.