Which is not an era of the Phanerozoic eon

Convert 2 m to yards

What are two reasons why the terrestrial planets formed closer to the Sun after the supernova event that initiated the formation of the solar system?

Find the resultant in the x-direction, Rx and y-direction, Ry for F1 = 2.5n in the positive x-direction f2 = 1n in the negative x-direction f3 = 2n in the positive y-direction F4=3n in the negative y-direction

Which statement is true? 1. The law of equal areas suggests that the imaginary line connecting the Sun to a planet sweeps out equal areas in equal amounts of time. 2.

Which factors affect the magnitude of the Lorentz force? The charge of the moving particle The direction of the magnetic field The direction of the electric field The velocity of the moving particle The strength of the magnetic field The strength of

Which of these is not a source of the shock waves that lead to protostars?

Which kind of information is known about a person if that person's DNA is in a database? A. how old the person is B. where the person was probably born C. some diseases the person might have D. whether the person is likely to commit a crime

A science teacher ran a marathon. After the race she showed her students the silver blanket she was given to keep her warm. A group of students investigated how the colour of the blanket affected how much infrared radiation is absorbed

Students asked to measure the temperature of a reaction beaker recorded the following temperatures. 103.7°C, 108.4°C, 105.8°C, 104.6°C The actual temperature is 105.1°C. Which measurement is the most precise

Two atoms that are isotopes of one another must have a different number of what? electrons neutrons protons all particles