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jeyben [28]
3 years ago
5

What is a prokaryotic cell

Physics
2 answers:
Norma-Jean [14]3 years ago
8 0
Group of cells that lack nucleus
lara31 [8.8K]3 years ago
3 0

Answer:

They are cells that do not have a nucleus or membrane bound organelles.

Explanation:

The difference between prokaryotic and eukaryotic cells is simply that one has a nucleus and the other does not.

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Simon puts new batteries in his radio-controlled car and its controller. He activates the controller, which sends a radio signal
Kaylis [27]
Chemical potential energy to kinetic energy
3 0
4 years ago
A light spring of constant 163 N/m rests vertically on the bottom of a large beaker of water.
LUCKY_DIMON [66]

Answer:

24.71cm

Explanation:

We approach this problem base don Hooke's law which states the elongation produced in an elastic material is proportional to the applied load or force provided that its elastic limit is not exceeded. This is expressed mathematically as follows;

F=ke................(1)

where F is the applied force, k is the force constant and e is the elongation or extension of the material.

In this problem, the applied force F is the weight of the wood which is calculated as follows,

F=mg.............(2)

m = 4.11kg

g=9.8m/s^2

Hence,

F=4.11*9.8\\F=40.278N

Given that k = 163N/m, we make appropriate substitutions into equation (1) to obtain the following;

40.278=163*e\\e=\frac{40.78}{163}\\e=0.2471m

Since it is required in cm, we perform the conversion as follows, knowing that 100cm = 1m

0.2471m=0.2471*100cm=24.71cm

NB: We do not necessarily need the the density of the wood to perform our calculations since other parameters were given from which we were able to obtain its weight.

7 0
4 years ago
The Sun has a mass of 1.99x10^30 kg and a radius of 6.96x10^8 m. Calculate the acceleration due to gravity, in meters per second
just olya [345]

Answer:

g=274\ m/s^2

Explanation:

Mass of the Sun, M=1.99\times 10^{30}\ kg

The radius of the Sun, r=6.96\times 10^8\ m

We need to find the acceleration due to gravity on the surface of the Sun. It is given by the formula as follows :

g=\dfrac{GM}{r^2}\\\\g=\dfrac{6.67\times 10^{-11}\times 1.99\times 10^{30}}{(6.96\times 10^8)^2}\\\\g=274\ m/s^2

So, the value of acceleration due to gravity on the Sun is 274\ m/s^2.

8 0
3 years ago
A wrench is placed at 30 cm in front of a diverging lens with a focal length of magnitude 10 cm. What is the magnification of th
WARRIOR [948]

Answer:

0.25

Explanation:

Magnification = image distance/object distance

mag = v/u.................. Equation 1

Given: f = -10 cm ( diverging lens) u = 30 cm.

Where can calculate for the value of v using

1/f = 1/u+1/v

make v the subject of the equation

v = fv/(u-f)..................... Equation 2

Substitute into equation 2

v = -30(10)/(30+10)

v = -300/40

v = -7.5 cm.

substituting into equation 1,

mag = 7.5/30

mag = 0.25

hence the magnification of the wretch = 0.25

4 0
3 years ago
A simple ideal Brayton cycle uses argon as the working fluid. At the beginning of the compression, P1 = 15 psia and T1 = 70°F, t
Shtirlitz [24]

B I thing hope this helps

7 0
4 years ago
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