How many galaxies exist?

A graduated cylinder if filled with water to a level of 40.0 mL. when a piece of paper of copper is lowered into the cylinder, the water level rises to 63.4mL. find the volume of the copper sample. if the density of the copper is 8.

What is the average speed of particles of atoms at room temperature?

a race car driver must average 203 km/h over the course of a time trial lasting ten laps. If the first nine laps were done at 199.0 km/h what average speed must be maintained for the last lap?

A cone with a mass of 6 g has a radius measuring 5 cm and a height of 2 cm, making the volume 52.33g/cm3 (3.14*52 (2/3)). What is its density? A - 60 g/cm3 B - 52.33 g/cm3 C - 0.11 g/cm3

You use an inclined plane to move furniture into a truck. You perform 105 kJ of work, but only do 88 kJ of useful work. What is the efficiency of the inclined plane?

Newton's First Law says that an object at rest will stay at rest, and an object in motion will stay in motion unless: Question 1 options: Acted on by a balanced force Acted on by an unbalanced force Acted on by equal forces in opposite direction

Which statement is true for electric field lines? A. Field lines should always be parallel to the equipotential lines. B. Field lines should always be perpendicular to the equipotential lines. C. Field lines should always be parallel to each other.

What distance was an object moved by a force of 40 N if the work was 600 joules

How do I use a metric conversions chart

Do you think Pluto should be considered a planet? Why or why not?