A florescent light tube usually contains what?

A a vacuum

B oxygen

C. Mercury vapor

D. Light emitting diodes

Why a tractor's big tyres stop it sinking too far into soft soil?

A bowling ball and a bag of potato chips are dropped at the same time from a tall tower on Earth. What happens?

Two deer run toward each other. One deer has a mass of 20 kg and runs west with a speed of 5 m/s, while the other has a mass of 30 kg and runs east with a speed of 4 m/s. What is the total momentum of the system made up of the two deer?

Explain objects in space motion. How do they move? What affects their motion?

How much do you know about the water cycle and the impact that humans have on the water cycle?

What is the period of a 1.00 m long pendulum?

Kaylie is describing the physical properties of an orange and a lemon. which two physical properties can she determine without using any measurement instruments

What is an example of a third class lever and why use it? A) pulley; changes direction B) baseball bat; increases velocity Eliminate C) car jack; increases the weight it can lift D) wheel barrow; makes it easier to move a load

1. The horizontal and vertical components of a projectile's velocity are a. directly proportional C. independent of each other b. inversely proportional d. equal

Which features involve compression? Select the three correct answers. A. Reverse faults B. Anticlines C. Folded mountains D. Normal faults E. Monoclines