A man takes 20 seconds to climb 5 m up a ladder. He weighs 720 N. Calculate the power he must deliver to do this.

Orion the hunter is known for two navigational stars. which pair of stars are they?

Why is the indus river so important to the people of pakistan?

Based on what you know about the location of the earth in relation to the sun, why is this called the goldilocks zone in other galaxies? a. it's a region that exhibits a weak gravitational pull, thus maintaining a safe distance from the sun. b. it's an area that doesn't experience any major weather events that could cause mass extinctions. c. it's an area that's an optimal distance from the sun for potentially supporting life. d. it's a region that's unaffected by asteroid or meteor impacts.