Select all that apply. Which of the following pure elements exist as liquids at normal Earth temperatures? bromine nitrogen mercury gold oxygen

As scientists learn more what happens to scientific ideas?

A spring with a force constant of 120 N/m is used to push a 0.27-kg block of wood against a wall (a) Find the minimum compression of the spring needed to keep the block from falling, given that the coefficient of static friction between the block

Find the steady-state temperature distribution for the semi-infinite plate problem if the temperature of the bottom edge is T = f (x) = x (in degrees;

What are the possible values of n and ml for an electron in a 3d orbital?

A 181-kg bookcase is at rest in the front office. A custodian pushes horizontally on the bookcase to try to move it.

If you are trying to balance a seesaw and you have a higher mass on the left, should the mass on the right be placed at a greater distance or lower distance to balance it? Why?

A car travels 300 km in the first 3 hours of a trip. Then it hits traffic and travels only 60 km during the last hour. What is the average speed of the car? a.) 180 km/h b.) 100 km/h c.) 90 km/h d.) 120 km/h

What is the purpose of using a wedge? A. separates objects B. keeps objects together C. allows you to exert force over a distance

Echolocation is an acoustic principle in which some wildlife use resonance to find food at night. Question 25 options: True False

Use the drop-down menus to identify the variables for the second hypothesis. Hypothesis #2: As you build circuits, you will alter resistance, which is the y variable.