Find the resistance of a 0.03 m long copper wire with a radius of. 005 m (Area of a circle: π r²).

What are to examples of radiation?

Why are large astronomical bodies round

Why is venus often referred to as earth's sister planet?

Differentiate between a scientific theory and a scientific law.

The kinetic energy of an object can be found if the object's _ and _ are known.

Which method is used to counteract the effects of erosion caused by water

Which law explains a soccer player who kicks a ball with his foot and his toes are left stinging?

While a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 88.0 N toolbox, causing it to start sliding downward, starting from rest. If it starts 4.

Suppose that the centripetal force acting on an object in circular motion were doubled to a new value, and the object remained in a circular path with the same radius. How would the motion be affected?

2. Air at a temperature of 20 ºC passes through a pipe with a constant velocity of 40 m/s. The pipe goes through a heat exchanger in which hot gases outside the pipe heat up the air to 820 ºC.