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777dan777 [17]
3 years ago
5

When cells get ready to divide, they need to grow several different structures. What do all cells need in order to grow these st

ructures?
Physics
1 answer:
rodikova [14]3 years ago
3 0

Answer:

To survive, every cell must have a constant supply of vital substances such as sugar, minerals, and oxygen, and dispose of waste products, all carried back and forth by the blood cells. Without these substances, cells would die in a very short period of time.

Explanation:

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A lightbulb is connected to a battery by two two copper wires of equal lengths but different thicknesses. A thick wire connects
patriot [66]

Answer:

Explanation:

a ) Current remains the same throughout the whole of a closed circuit if all the resistances are in series. So current will remain the same in both these conductors as they are in series.

b ) If the two wires are switched or exchanged mutually , there will not be any change in the current are they will still remain in series and total resistance remains the same . so current will remain the same . Hence the current through the bulb will remain unchanged . The brightness too will remain the same.

5 1
4 years ago
Which method of testing substances is a sure way to identify a chemical reaction?
Nataly [62]
Change in color, increase of temperature, formulation in bubbles
8 0
4 years ago
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Two people with a combined mass of 140 kg hop into an old car with worn-out shock absorbers. This causes the springs to compress
Crank

Answe

given,

combined mass of two people = 140 Kg

compression of spring = 8.70 cm

time period = 1.66 s

we know,

F = k x

where k is spring constant

and also

F = mg

equating both the force equation

k x  = mg

k = \dfrac{mg}{x}

k = \dfrac{140 \times 9.8}{0.087}

k = 15770 N/m

total mass = 140 + m_c

period of oscillation

T = 2 \pi \sqrt{\dfrac{total\ mass}{k}}

1.66 = 2 \pi \sqrt{\dfrac{140 + m_c}{15770}}

140 + m_c = 1100

m_c = 960 Kg

a) total load supported by the car

  P  = 1100 Kg

b) mass of car = 960 Kg

6 0
3 years ago
Help plz i dont know what to do
Vadim26 [7]

Answer:

Rock tied to a string is called bob.

The end from which the string is held is known as Point of suspension(S).

The distance between the point of suspension to the center of the gravity of the rock is the length of the pendulum(L).

<u>Note</u>: See picture attached.

8 0
3 years ago
What is the differences between standing wave and interference wave?
Nataly_w [17]

Answer: One is just a wave and the other is an interference.

Explanation:

Logic.

3 0
3 years ago
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