The chemical symbol for the element calcium is Ca. What would be the symbol representing calcium atoms that have lost two electrons?

What type of front usually brings thunder clouds and storms

If a salmon swims straight upward in the water as fast enough to break through the surface at a speed of 5 meters per second, how high can it jump about the water?

Why is "Creation-Science" not considered true science?

A rock at rest falls off a tall cliff. what is the rock's velocity as the rock hits the ground 3.5s later

What makes science different from other fields of knowledge like art or philosophy?

An astronaut weighs 104 newtons on the moon, where the strength of gravity is 1.6 newtons per kilogram. What would she weigh on Mars?

A chemical bond formed when Adams share three pairs of electrons is A. an ionic bond B. a single bond C. a double bond D. a Triple bond

A 1100 kg car rounds a circular turn of radius 24.6 m. Of the road is flat and the coefficient of static friction between the tires and the road is 0.59, how fast can the car go without skidding

What is the momentum of a 15 kg tire rolling down a hill at 3 m/s? 5 kg • m/s 18 kg • m/s 45 kg • m/s 60 kg • m/s

Which of Newton's laws, when combined algebraically with his law of universal gravitation, can be used to calculate Earth's mass? A) first B) second C) third