If one firecracker produces a sound intensity of 90db, what would be the intensity of a sound produced by 1000 firecrackers, all going off at once?

What is the weight (in newtons) of a bowling ball that has a mass of 3 kilograms?

Does the moon make its own light?

The acceleration of gravity is 9.8 m/s 2. After impact, the block slides 9.15 m before coming to rest. 84 g 10.4 g vbullet 94.4 g 9.15 m µ = 0.251 If the coefficient of friction between block and surface is 0.

If a liquid is sealed in a container and kept at a constant temperature

How would a 50 percent increase in earth's albedo impact average surface temperatures?

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.