All categories

3 years ago

This branching tree diagram is most likely used to represent the theory that suggests

Biology

1 answer:

Ede4ka [16]3 years ago

5 0

All species share a common ancestor and that change occurs over time

You might be interested in

Which describes the changes in visible light moving from red to violet?

Aliun [14]

Answer: Moving from red light to violet light, the energy increases. From equation 1 and 2, we say that energy is directly proportional to frequency and inversely proportional to wavelength.

8 0

3 years ago

Dingram 1 (a) Explain why it floats on the surface of the water Jelaskan mengapa sampan terapung di atas permukaan ain

andrew11 [14]

jane meri jane man bachan

8 0

3 years ago

The fluctuation of the water level in the small arm of the water seal with respirations is called:_________

mr Goodwill [35]

Answer: Tidaling

Explanation:

It is rise and fall of water in water-seal chamber, used to determine the degree of re expansion of the lungs. It reduction shows the lungs reexpands.

However, with respiratory efforts it is normal.

4 0

4 years ago

Hooke and van leeuwenhoek helped to create the basis of the cell theory by ______.

Anika [276]

Both Hook and vanLeeuwenhoek helped to create the basis of cell theory by determining that all living things are made of cells.

5 0

3 years ago

How far away can a proton and an electron be from each other, such that they still exert an electric force on each other of magn

pogonyaev

Answer:

$\sqrt{ \frac{2.3 *10^{-28} }{F} }$

Explanation:

Total force = Force due to gravity + Force due to charges

Total force = $\frac{GMm}{r^{2} } + \frac{kQq}{r^{2} }$

r is the separation between particles.

Charge of a proton(Q) = - (charge of an electron(q) ) = 1.6 * 10^-19 coulombs

Mass of a proton (M)= 1.67×10^-27 kilograms

Mass of an electron (m) =9.11 × 10^-31 kilograms

G=6.67 ×10^−11 N⋅m^2/kg^2

k=8.99 * 10 ^9 N.m^2 / C^2

Plugging in values:

Force due to gravity= (6.67 *10^−11)(1.67 * 10^-27)*(9.11 * 10^-31) /r^2 =1.01 * 10^-67 / r^2

Force due to charges : (8.99 * 10 ^9)*(1.6 * 10^-19)*(1.6 * 10^-19) / r^2 = 2.3 *10^-28 / r^2

We can observe that force due to charges is too large as compared with force due to charge. The ratio of Fc to Fm is 2.3* 10^39. It means that we can ignore force due to gravity.

Total force = Force due to charges.

F = 2.3 *10^-28 / r^2

r = $\sqrt{ \frac{2.3 *10^{-28} }{F} }$

3 0

3 years ago