Answer:
photoelectric effect, phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation. The effect is often defined as the ejection of electrons from a metal plate when light falls on it.
<span>The radioactive uranium decays into its daughter product, lead. It would do this in magma as well, as nuclear decay depends on forces within the atom, not on the phase of the material in which the atom is a part.</span>
Answer : The number of silver atoms produced will be
Explanation : Given,
Number of atoms of copper =
The given balanced chemical reaction,
From the balanced chemical reaction we conclude that,
As, number of copper atoms react to give number of silver atoms.
So, number of copper atoms react to give number of silver atoms.
Therefore, the number of silver atoms produced will be
Answer;
D.
infrared, visible, ultraviolet
Explanation;
Electromagnetic waves are types of waves that do not require a material medium for transmission. An electromagnetic spectrum arranges these electromagnetic waves in the order of increasing frequency and decreasing wavelength.
The spectrum consists of , Radio waves, microwaves, infrared, visible light, UV light, X-rays and Gamma rays; arranged in order of decreasing wavelength and increasing frequency.
Radio waves have the longest wavelength but the lowest frequency, while gamma rays have the lowest wavelength but the largest frequency.
Answer:
Explanation:
To identify the different variables from this experiment, we must first understand what the different types of variables depicts.
Independent variables are those variables that do not rely on the conditions of the experiment. They are what causes the experiment to proceed the way we want.
Dependent variables are the variables that relies on the effect of the independent variables. They are what we are actually testing for.
Controlled variable are the variables that are constant in an experiment and their outcomes are used to checkmate an experiment.
In the experiment by Justin:
Independent variable: water, coffee, milk
dependent variable: garden growth
controlled variabe: fertilizer