The concentration of salt water is found to be 18%. What is the mass of the salt if the mass of the water is 200 g?

A. 18 g

B. 36 g

C. 218 g

D. 182 g

What is the form of energy that is produced in all energy transformations?

Will we ever have a theory of everything?

A thunderstorm is a connection between?

An egg is thrown horizontally off the roof of a school, which is 15.0 m high, with an initial velocity of 6.50 m/s. How long does it take to hit the ground? How far does it go in the x direction?

In liquids, the particles vibrate and change position, but the particles in liquids do not have more motion than the particles in gases. true or false

4. How far does a car travel in 90 seconds if it is traveling at a speed of 55 m/s?

Total energy input is 1400 and my efficiency is 80% so what is the useful energy output in jules?

What is the force of gravity acting on a 2000-kg spacecraft when it orbits two Earth radii from the Earth's center (that is a distance r=6380 km above the Earth's Surface. The mass of the Earth is 5.98 x 1024 kg.

An LC circuit has a 6.00 mH inductor. The current has its maximum value of 0.570 A at t = 0s. A short time later the capacitor reaches its maximum potential difference of 66.0 V. What is the value of the capacitance?

The first law of thermodynamics states that ΔE = Q - W. Is this also a statement of the principle of conservation of energy? Yes, the heat added and the change in internal energy of the gas equal the work done by the piston.