Much of the pollution in our oceans comes from: organic pesticides fumes and smog car exhaust sewage and industrial waste

The bodies of birds are streamlined. Why. When we strike a matchstick with a rough surface it catches fire. why Grooves are made in tyres. why Discuss how friction plays a vital role in daily life.

The blank of a wave is the density of the medium's particles at the compression of the wave.

In which of the following cases is work being done on an object? Question 2 options: Pushing against a locked door Carrying a box down a corridor Pulling a trailer up a hill Suspending a heavy weight with a strong chain?

Which statement is part of Bohr's atomic model? A. Electrons absorb or emit light when they change energy levels. B. Electrons with the highest energy are found with orbits of the smallest radius. C.

How much force would be required to accelerate a 2kg object at a rate of 15m / sec? A. 7.5 newtons B. 13 newtons C. 17 newtons D. 30 newtons

Evaluate the force of a skateboard exerts on you if your mass is 60kg and you push on the skateboard with a force of 60N

Select all the expressions below which represent a 20% discount off the price of an item that originally costs d dollars. A. 0.8d B. d-0.2 C. d-0.2d D. 1-0.2d

Life cycle of a medium mass star

Use the periodic table to complete this equation that represents the process of nuclear fusion. Superscript 14 Subscript 7 Baseline N + Superscript 1 Subscript 1 Baseline H yields Superscript A Subscript B Baseline C

Josh rolled a bowling ball down a lane in 2.5 seconds. The ball travelled at a constant acceleration of 1.8 m/s/s down the lane and was traveling at a speed of 7.6 m/s by the time it reached the pins at the end of the lane.