Questions in physics

Questions in physics

[Done] What is a meteorologist?

[Done] Why do the track runners start at different positions on the track?

[Done] Why is gravity an example of a scientific law?

[Done] A traveler first drives 18.6 km east, then 30.3 km southeast, and finally 10.7 km south. Find the traveler's total displacement.

[Done] Could a vector ever be shorter than one of its components? Equal in length to one of its components? Explain.

[Done] How would your weight change on the surface of an Earth-sized planet whose mass was greater than Earth's? Why?

[Done] A golf ball is dropped from rest from a height of 9.5 m. It hits the pavement, then bounces back up, rising just 5.7 m before falling back down again. A boy catches the ball on the way down when it is 1.20 m above the pavement. Ignoring air resistance, calculate the total amount of time the ball is in the air, from drop to catch.

[Done] How is the horizontal component of velocity for a projectile affected by the vertical component?

[Done] What is \( E = mc^2 \), the famous theory of Albert Einstein?

[Done] Where are most faults located? What is a fault in scientific terms?