14 % 1 Question 8 of 42 An aeroplane's engines provide a force of 30,000N as it accelerates down the runway. The mass of the aeroplane is 4000kg. Work out the acceleration of this aeroplane.

Which of the following is true for balancing equations? A. There must be an equal number of atoms of each element on both sides of the equation. B. The number of products should be equal to the number of reactants. C.

What is weight measured in

The measure of the force of gravity acting on an object is called

A 10kg sphere hits a stationary 8kg sphere. After the collision the 8kg sphere moves off in the positive direction at 4m/s. If the 10kg sphere was originally moving at 10m/s, what is its velocity after the collision?

During beta decay what then theoretical particle was proposed to account for the discrepancy in mass/energy conservation? A neutrino B. electron C. positron D. proton E. neutron

Why oil does not dissolve in water?

Which element has the highest number of protons? a. Calcium b. Argon c. Xenon d. Radon

Which are the most common producers in aquatic ecosystems? a - bacteria b - algae c - fish d - plants

You push a piano 5 meters across the floor with a force of 400 n. how much work have you done?

Monochromatic electromagnetic radiation illuminates an area of a surface. The electric and magnetic fields of the waves are then doubled in magnitude.