A weightlifter lifts a 1400 N barbell 2.5 meters. Calculate the work done during the lift

Higher amounts of water vapor are found near the Gulf of Mexico because a. the Gulf's high water temperature promotes evaporation. b. the Gulf's high water temperature promotes condensation. c. the Gulf's low water temperature promotes condensation.

What kind of energy does a baseball use when travels thru the air?

A 50-g ball rolls across the table at 2 m/s. A 100-g ball rolls across the same table at 1 m/s. Which ball has more momentum?

Calculate how much force is required to give a 0.15-kg baseball an acceleration of 12m/s2

Which sentence describe the energy conversions in a car's engine? Mechanical to thermal to chemical D Kinetic to potential to mechanical Thermal to mechanical to chemical Chemical to thermal to mechanical

Which of the following is an example of applied research?

A Cadillac Escalade has a mass of 2,569.6 kg, if it accelerates at 4.65 m/s^2 what is the net force on the car?

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