Answer:
Light rays that come from a source such as the sun reflect off items and enter our eye. ... While black objects absorb the energy from all colors and become hot, the objects gradually release some of that energy back into the air around it
Explanation:
Hi Army Pls Mark brainliest
Explanation:
Many people are under the impression the phases originate from the shadow cast on the Moon by Earth. Some think the Moon is changing shape because of clouds. Alternatively, the movement of the Moon based only on its position in relation to Earth and the Sun. The Moon doesn't really create its own light, it actually reflects the light of the Sun, as all the planets do.
Answer:
Since the car comes uniformly to a stop, the force that acts on the vehicle is the net force whose magnitude is equal to 1320 N.
Explanation:
The force acting on the vehicle is given:
Where:
m: is the mass = 1100 kg
a: is the acceleration = -1.2 m/s²
We can find the magnitude of the net force:
Since the car comes uniformly to a stop, the force that acts on the vehicle is the net force calculated above.
I hope it helps you!
Duracell batteries are an example of an electrochemical cell that is powered between the reaction of Magnesium and Zinc, occurring in basic conditions (alkaline battery). This type of reaction has a precise output of 1.5 volts, and looks like this:
Zn + 2MnO2 ➡️ ZnO + Mn2O3
It’s not rechargeable.
Golf Cart Batteries are an example of an electrochemical cell that is powered by the reaction between Lead and Sulfuric Acid (Lead-Acid battery). This type of reaction occurs on larger scales than an alkaline battery, and thus can generate a variety of powers depending on how many instruments are present within the battery. The reaction looks like this:
PbO2 + Pb + 2H2SO4 ➡️ 2PbSO4 + H2O
This is a rechargeable cell, but is rather prone to discharging by the environment and surroundings of the battery.
<h3><u>Answer;</u></h3>
<em>4. Only some metals are attracted by magnets; these metals are called ferromagnetic.</em>
<h3><u>Explanation;</u></h3>
- <u><em>Magnets are those materials that have the ability of producing magnetic field.</em></u> Magnets attracts materials called magnetic materials and have no effect on non magnetic materials such as wood.
- <em><u>Magnetic materials are materials that are attracted by a magnet, these includes some metal such as iron and steel.</u></em> However some metals are non-magnetic materials, these include, gold, silver, and copper among others,
- Therefore,<em><u> it would be appropriate to say that only some metals are attracted by magnets; these metals are called ferromagnetic.</u></em>