What is the difference in sodium and chlorine

A spring has a spring constant of 53N/m. How much elastic potential energy is stored in the spring in the spring when it is compressed by p. 21 m?

What is a unique form of matter in which can't exist

What technology is used in gathering coal?

The length of a block was measured to be 11.23 cm ± 0.03 cm the vernier caliper used to measure the block has an uncertainty of 0.01 cm. Determine the total uncertainty in the measurement. A) 0.04 cm B) 0.032 cm C) 0.001 cm D) 0.2 cm

Does a ball dropped out of the window of a moving car take longer to reach the ground then one dropped at the same height for my car at rest?

Which term defines the energy of motion? a. chemical energy b. electrical energy c. gravitational energy d. kinetic energy user: what is electromagnetic energy that travels in transverse waves? a. nuclear energy b. potential energy c.

The mass of a lift is 600kg. the maximum tensile force that the cable supporting the lift can withstand is 7kN. Calculate:maximum upwards acceleration allowed?

In an experiment if doubling the manipulated variable results in doubling of the responding variable the relationship between the variable is a (n) ?

What color does Indigo turn things?

Why is temperature a good criterion for searching for earth like exoplanets