Why do radio waves diffract around buildings, while light waves do not?

A plane flies along a straight line path after taking off, and it ends up 90.0 km farther east and 200.0 km farther north, relative to where it started.

Which of the following is the correct order that the planets and stars followed when they formed? Big Bang - - > Planet is formed - - > Star is formed Big Bang - - > Clouds and planets form - - > Star is formed Big Bang - - > Clouds of Dust - - >

As a skydiver jumps out of a plane, which of the following best describes the type and amount of energy the skydiver possesses: A) All Kinetic B) All Potential C) Some Kinetic And Some Potential D) No Energy, All Work Is Being Done By Gravity

A recent home energy bill indicates that a household used 475475 kWh (kilowatt‑hour) of electrical energy and 135135 therms for gas heating and cooking in a period of 1 month. Given that 1.00 therm is equal to 29.329.

Describe what happens to pressure as the force exerted on a given area increases.

How does friction affect all moving objects?

A force of 5N compresses a spring by 4cm. Find the force constant of the spring.

Which of the following equations are balanced correctly? A: Cu + H2O → CuO + H2 B: Zn + HCl → ZnCl2 + H2 C: 2C4H10 + 13O2 → 8CO2 + 10H2O D: 2Ag2O → 4Ag + O2

Two identical objects are moving directly toward one another at the same speed v. ~v - ~v m m What is the total kinetic energy of the system of the two objects?

Why would a long series of gradual ramps be better than one short, steep ramp for moving heavy blocks of stone?