Escape velocity is a measure of how fast an object must be moving to escape the gravitational pull of a planet or moon with no further thrust. The escape velocity for the
d
moon is given approximately by the equation v = 5,600
where v is the
1,000
escape velocity in miles per hour and d is the distance from the center of the moon (in
miles). If a lunar lander thrusts upwards until it reaches a distance of 16,000 miles from the
center of the moon, about how fast must it be going to escape the moon's gravity?
The object has to be moving
miles per hour to escape the moon's gravity.

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3