What is the temperature, in degrees Celsius, of a substance with a temperature of 49K?

A train covered the distance of 400 km between A and B at a certain speed. On the way back it covered 2 5 of the distance at that same speed and then it decreased its speed by 20 km/hour.

List 2 uses/applications of geothermal energy.

Olphins communicate using compression waves (longitudinal waves). Some of the sounds dolphins make are outside the range of human hearing. Upon spotting a hungry shark, dolphin A sends a message to dolphin B.

The lenght of rod is 35.5 cm, what will be this length in meters?

Which of the following correctly compares UV rays and infrared waves? A. Infrared waves have higher energy than UV rays. B. Infrared waves have the same wavelength as UV rays. C. Infrared waves have lower frequency than UV rays. D.

Which statement about gravity is true? (A) gravity only takes place between planets (B) gravity causes objects to push away from each other (C) the moon dosen't have any gravity (D) gravity causes objects to pull towards one another

What healing action is taking place when a wound becomes inflamed?

A material that provides resistance to the flow of electric current is called a (n)

if a car has a speed of 20 m/s, how long will it take to go 155 m? A. 3100 s B. 135 s C. 2.1 s D. 7.8 s

What is the impulse of a 4kg object accelerating from 10m/s to 12m/s?