If a ray of light is incident on plane mirror at an angle of 300 its angle of reflection is.

A scientist studies how the temperature of a baseball affects how far it goes when hit by a bat. What will make this experiment more repeatable? O A. Using the exact same kind of baseball each time O B.

What landforms are formed when oceanic plates sink beneath continental plates?

A 1.5m wire carries a 8 A current when a potential difference of 78 V is applied. What is the resistance of the wire? Your Answer: Question 17 options: Answer: units:

Find the volume of a sphere which has 4 cm diameter

A box experiences a force of 10N to the left and a force of 10N to the right. What is the net force on the box?

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.

What is the thermometer

In which natural cycle must an important gas in Earth's atmosphere be fixed before plants can use it? a. sulfur cycle b. carbon cycle c. nitrogen cycle d. oxygen cycle