Which of the following statements is true? A. All metals are magnetic. B. All the magnets are made of iron. C. Earth is a giant magnet.

You place a beaker of water on a hot plate and heat it up eventually it starts to boil and you see bubbles for me you also seemed steam rising from the water surface is it physical or chemical change

An 800 kg car is moving at 32 m/s when it hits the afterburner. The after burner applies a 180,000 N force for 25 seconds. What is the rockets final speed?

How to solve wavelength

A heat engine receives heat from a source at 1100 K at a rate of 400 kJ/s, and it rejects the waste heat to a medium at 320 K. The measured power output of the heat engine is 120 kW, and the environment temperature is 25∘C.

The hypotenuse of the right triangle ABC is 12.0 centimeters. The angle θ is 41.0 degrees. What is the length of the side opposite to angle θ?

A force acts on a 5kg object at rest. How fast will the object accelerate on a frictionless surface? A.) 4 m/s^2 B.) 15 m/s^2 C.) 25 m/s^2 D.) 100 m/s^2

Four wrestlers step on a scale for a tournament. Wrestler A weighs in at 170 pounds; wrestler B weighs in at 168 pounds; wrestler C weighs in at 171 pounds; and wrestler D weighs in at 169 pounds.

What is a change in velocity per time

Recall specific heat of water is 4186 j/kg/C. Find the specific heat of sample. Water. Sample Mass 109 192 Internal temperature. 21. 67 Final temperature. 30.1. 30.1

During which period did the first large herbivores and carnivores appear?