Which of the following are thought to be rapidly rotating neutron stars with intense magnetic fields? Choose one answer.

a. pulsars

b. white dwarfs

c. black holes

d. flare stars

e. accretion disks

3 characteristics of chemical change

How fast should a 250g mouse run so that it can have the same momentum as a 3ton (1metric ton = 1000kg 1g=0.001kg) can a mouse realistically attain this speed yes or no?

Why does a tail appear when a comet nears the sun?

How would you define matter? A M atter is anything that has mass and atoms, B. Matter is anything that has mass and weight. C. Matter is anything that has mass and volume. D. Matter is anything that has weight and volume.

Detail some of the anthropogenic changes to Earth's climate and their potential impact on life.

A child is sliding down a slide at the playground. Is the mechanical energy conserved? Why or why not? The mechanical energy is conserved. There is as much KE at the end as there was PE at the beginning. The mechanical energy isn't conserved.

Which term refers to the rate at which the velocity of a moving object changes? A. acceleration B. displacement C. resonance D. turbulance

This is a number, as of years, days, minutes, or seconds representing such an interval. The SI standard unit of this is the second.

What is the name of the person who created kinematics?

If the mass of a material is 114 grams and the volume of the material is 16 cm squared 3, what would the density of the material be?