A positive charge on an object is caused by:

an excess of protons

an excess of electrons

a deficiency of protons

a deficiency of electrons

The density of water is 1 g/cc. Ice floats on water with 90% of its volume inside the water. What will be the mass of a cube of ice of side 3 cm?

What average power is generated by the muscles of a 70.0-kg mountain climber who climbs a summit of height 325 m in 95.0 min?

What is the absolute magnitude of the sun?

Describe how the water cycle is driven by the energy of the sun

What causes something to speed up as it rolls down a hill

What is the difference between analog and digital sound transmission?

A 20 kilogram ball rolls down a 10 meter ramp at the rate of 15 meters per second.

Why does the falling speed of a ball keeps increasing every second when it is dropped from a building?

In your own words describe an interaction between the chromosphere and the hydrosphere

Ming drives across Arizona in the middle of July. She drives for two hours in the hot, desert sun before stopping for some snacks. Which statement describes the condition of the tires on Ming's car when she stops? A.