A train travels 84 kilometers in 1 hours, and then 85 kilometers in 3 hours. What is its average speed?

Cracking an egg is what type of energy

A cheetah, which is the fastest land mammal, can accelerate at 9 m/s from rest to in 31 m/s. How long does this take?

Flasher units are being discussed. Technician A says that only a DOT-approved flasher unit should be used for turn signals.

How has psychology developed from its prescientific roots in early understandings of mind and body to the beginnings of modern science?

A monkey throws a coconut straight down from the top of a tree. At the same time, the branch he is standing on breaks. The monkey and the branch fall straight down. Which of the following is true? A. The coconut will reach the ground first B.

What is the hottest layer in the Sun's atmosphere?

Which do you need to calculate the speed of a wave? A. distance and frequency B. distance and time C. time and frequency

What is one of the benefits that scientists have discovered from organisms' daily exposure to radioisotopes? 1. being able to Carbon date fossils 2. X-ray Imaging capability 3. radiation treatment for cancer 4. invention of microwave cooking

Despite valid research, in the late 1900s, women and minorities were thought to have a higher level of intelligence than white males

Radio communications were severely Distributed last week And the local newspaper says that solar activity is to blame. Which type of solar activity could the newspaper be talking about?