A train travels 90 kilometers in 4 hours, and then 82 kilometers in 1 hours. What is its average speed?

Find the momentum of a 25 kg object traveling at a speed of 4 m/s

If it takes 20n to move a box, how much power will be needed to move the box a diatance

Suchita is going to make an energy transfer diagram to represent the energy transformations associated with the flame of a gas stove.

How do police use the principle of the Doppler effect? To transmit fingerprints from one precinct to the next To measure how much pollution is coming from your car To measure the speed of cars on the highway Police don't use this, only the weather

In a chemical reaction does matter increase, decrease, or disappear.

Witch types of electromagnetic waves have wavelengths that are longer than those of visible light but shorter than those of microwave?

Temperature is the transfer of thermal energy from one object to another.

Describe how handball players move the ball

What is measuring the age of fossils in years called

A wire 0.80m long carrying a current of 3.2A is perpendicular to a 0.15T magnetic field (B field). What is the force on the wire? (Use F=BIL to solve!) Input answer with 3 decimal places (for example: 555) and do NOT include the units! E