if it takes a tennis ball falls straight down for 4 seconds from the top of a roof, how high above the ground is the roof?

Matter is lost when a candle is burned. True or False?

Explain how overgrazing can lead to dessert-like conditions and correctly? give examples of 3 ways ranchers can use rangelands sustainably

Two pendulum bobs have equal masses and lengths (8.100 m). bob a is initially held horizontally while bob b hangs vertically at rest. bob a is released and collides elastically with bob b. how fast is bob b moving immediately after the collision?

What Fitness Gram test is assessing your cardiovascular endurance?

How much heat is absorbed by a 32g iron skillet when its temperature rises from 12oc to 117oc?

Which of the following statements concerning Howard Gardner's multiple intelligences is not correct? A. Gardner is not interested in assessing levels of intelligence. B. Gardner has based his theory on research in various areas of psychology. C.

The force of attraction between two oppositely charged pith balls is 5.3 * 10-6 newtons. If the charge on the two objects is 6.7 * 10-9 coulombs, what is the distance between the two charges? (k = 9.0 * 109 newton·meter2/coulombs2)

To describe velocity you need to know?

Mohammed made a chart to list examples and nonexamples of projectile motion. Which best completes the chart? a - a football thrown in the airb - a kite flying on a stringc - a golf ball rolling off a table d - water spraying from a fountain

Halley's Comet appears around the sun about once every 76 years. It passes through the part of its orbit nearest the sun in just a few months but then moves out to great distances and takes more than half a century for the rest of its orbit.