All categories

3 years ago

1. Get a flashlight and switch it on.

Biology

1 answer:

Anna [14]3 years ago

8 0

Answer:

Explanation:

1. The beam emitted travels along a straight path and it is divergent in nature. It has its radius increasing progressively as the distance away from the source of light increases.

2. It would be observed that the region where the bulb is positioned has denser light beam. This gets fainter towards the edges of the beam and away from the bulb.

You might be interested in

What is the use of vitamin c

Inessa05 [86]

It is a dietary supplement that helps generare collagen which repair tissues (oranges are pretty good for your skin basically) protect against heart disease, decreases bad cholesterol and prevents specific diseases.

6 0

3 years ago

Group the terms according to the subatomic particle they describe.

LiRa [457]

Answer:

This question is incomplete

Explanation:

This question is incomplete but the completed question can be seen in the document attached.

There are three main subatomic particles namely electrons, protons and neutrons. However, the question only discusses two of them; electrons (negatively charged) and protons (positively charged).

A. Found in all matter

Answer: They are both found in all matter since all matter are made up of atoms and all atoms have both protons and electrons (and even neutrons).

B. Negative charge

Answer: The subatomic particle with negative charge (as discovered by R.A Millikan) is the electron

C. Exists in the nucleus

The subatomic particles found in the nucleus are the protons and neutrons.

D. Attract opposite charges

They both (protons and electrons) attract opposite charges because they are of opposite charges and generally unlike charges attract.

E. Moves at extreme speed

Of the two subatomic particles mentioned, electrons move faster than protons because of there lighter mass when compared to the protons. However, the fastest subatomic particle is the neutrino.

F. Bound by strong force

The protons are bound by strong nuclear force which binds them to the nucleus of the atom.

Download docx

3 0

2 years ago

In a laboratory, an albino mouse was treated with a chemical, resulting in a somatic mutation that induced a skin tumor. The mou

Len [333]

Answer G. The progeny would be normal because the mutation was somatic, occuring in body cells, not sex cells.

3 0

3 years ago

In chickens, comb shape is determined by alleles at two loci (R, r and P, p). A walnut comb is produced when at least one domina

frutty [35]

Answer:

a) All Walnut , Genotype - RrPp

b) Walnut : Rose: Single

1:1:2

Explanation:

Phenotype and their Genotype -

Walnut comb - R_ P_

Rose Comb - R_ pp

Pea Comb - rr P_

Single Comb - rr pp

a) RR PP * rr pp

All progenies will have genotype RrPp (Walnut Comb)

b) Rr Pp * rr pp

RrPp (4), Rrpp (4), rrpp (8)

Walnut : Rose: Single

1:1:2

4 0

3 years ago

Most organisms contain the same codons. true or false

iragen [17]

True the only exception to organisms with different genetic codes are identical twins. Otherwise all organisms have differences in their genetic sequences that make them to at least a small degree unique

4 0

4 years ago

Read 2 more answers