Two trains start a journey at the same time 120 miles apart, travelling towards each other. The first train is travelling at 60 mph and the second train is travelling at 40 mph. How long does it take for the two trains to meet?

Inbreeding and hybridization are two different types of

Describe the force board experiment

A spherical weather balloon is filled with hydrogen until its radius is 4.00 m. Its total mass including the instruments it carries is 24.0 kg. (a) Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3.

Each pixel on a computer monitor is made up of a triad of colored phosphors. what are the colors

When you balance a redox equation using the half-reaction method, what do you do after you write the oxidation and reduction half-reactions?

Which wave A or B has a higher energy

What does the law of conservation of energy state about energy in a closed system?

James joule carefully measured the difference in temperature of the water at the top and bottom of a waterfall. Why did he expect a difference

To change gross income, someone would need to? save more per month. reduce deductions. earn more money. increase withholdings.

An elevator (mass 4150 kg) is to be designed so that the maximum acceleration is 0.0800g. what is the maximum force the motor should exert on the supporting cable?