Which of the following is the closest estimate of the number of galaxies present in the universe?

One hundred

Ten thousand

Ten million

One hundred billion

Tony made 14 liters of lemonade for a party. His guests drank 9500 mL of the lemonade. After the party Tony had mL of lemonade left over.

A conducting rod (length = 80 cm) rotates at a constant angular rate of 15 revolutions per second about a pivot at one end. A uniform field (B = 60 mT) is directed perpendicularly to the plane of rotation.

Dimensional analysis worksheet Convert 3.42 g into kilograms

A suspect is leading the police on a car chase. The officer reports that the suspect is traveling north at 100 miles per hour. The officer has reported the suspect's instantaneous speed. acceleration. average speed. velocity.

Does sound move faster in a warm or cold room

I am looking for this answer : Which shows a correct order of steps in the scientific method? develop a hypothesis, analyze data, make observations, draw conclusions make observations, draw conclusions, develop a hypothesis, analyze data.

A gas in a piston is compressed doing - 439 j of work, and its internal energy increases by 318 j. how much heat flows? (be careful with + and -. + w = expansion. + q = added, + u = temp goes up) (unit = j)

A loop of wire is placed in a uniform magnetic field. (a) For what orientation of the loop is the magnetic flux a maximum? The plane of the loop is perpendicular to the magnetic field. The plane of the loop is parallel to the magnetic field.

Dr. Arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode.

Stephen buys a new mop he travels 3 km south and the. 4 km east and then 3km north how far does he need to go to get back. To where he started