Answer:
A. Electric currents produce magnetic fields.
Explanation:
Answer:
A. Electric currents produce magnetic fields.
Explanation:
Hans Christian Ørsted discovered that electric currents had a property of producing magnetic fields. This finding was the first established relationship found between electricity and magnetism.
He noticed that a compass deflected when current was switched on and off and this marked the first established relationship between electricity and magnetism.
Answer: light and heat
Explanation:Our sun is the source of all life on Earth, and solar energy is useful to us in many different ways. The sun creates two main types of energy - light and heat - that we can harness for many activities ranging from photosynthesis in plants to creating electricity with photovoltaic (PV) cells to heating water and food.
Answer: The pressure of a gas will increase when there is a decrease in the volume of the gas.
Explanation: according to Boyle's law, the volume of a gas will decrease when the pressure is increased at constant temperature and vice versa.
Answer:
the answer should be six months
Answer:
7.5 g of hydrogen gas reacts with 50.0 g oxygen gas to form 57.5 g of water.
Explanation:
Here we have the check if the mass of the reactants is equal to the mass of the products.
Reactants
Products
The data is consistent with the law of conservation of matter.
Reactants
Products
The data is not consistent with the law of conservation of matter.
Reactant
Products
The data is not consistent with the law of conservation of matter.
Only the first data is consistent with the law of conservation of matter.
