What organisms disappeared duing Precambrian

What is the ratio of the sun's gravitational force on you to the earth's gravitational force on you? fsunfearth = ?

Which correctly identifies the parts of a transverse wave? A: crest B: amplitude C: wavelength D: trough A: trough B: amplitude C: crest D: wavelength A: trough B: amplitude C: wavelength D: crest A: crest B: amplitude C: trough D: wavelength

Which of the following represents the brightness of a celestial object measured from Earth? Absolute brightness Apparent magnitude Luminosity Proto-star

A beam of red and blue light in air is incident at 30º on a glass surface. Which is true? a. The blue light is bent toward the normal more than the red light. b. The blue light is bent toward the normal less than the red light. c.

Sugar has a density of 1.59 gm/cm cubed. what mass fits into a 140 cm cubed bowl?

Most of the Earth's volcanoes occuWhen fossils or minerals form, certain unstable elements are sometimes locked into them.

a man is standing on the edge of a 20.0m high cliff. he throws a rock vertically with an initial velocity of 10.0m/s. how high does the rock go?

The slope of a velocity time graph over any interval of time gives the during that interval

if light travels in a vacuum at 3.00 x 10^8m/s and its frequency is 7.44 x 10^7 what is its wavelength

the half-life of carbon - 14 is 5730 years. What fraction of carbon-14 would remain after 11,460 years?