Are all these a chemical change

Burn

Dissolve

Rust

Explode

a boat traveling at a speed of 1.63 m / s has a kinetic energy of 52000 J what is the mass of the boat

What does fitness mean to you?

An electric heater rated at 4,800 watts is operated on 120 volts. If another heater is connected in parallel with the first one and both operate at 120 volts, the current in the first heater will A Instantly become zero B. Pemain the same C.

How much energy in calories does it take to melt 10 grams of ice?

If you try to touch your toes while standing flat against a wall, you probably will fall over. The reason this happens is that a. your center of gravity is not located directly above your support area. b.

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.

How can we calculate the density of a sustance that has irregular volume