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2 years ago

How can you use weights of the filled cell models to determine the rate and direction of diffusion?

Physics

1 answer:

nikklg [1K]2 years ago

7 0

Compare the initial mass to the final mass.

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One would use deductive reasoning to

Ivan

The answer is Prove a hypothesis

5 0

2 years ago

What is the defining feature of isotopes of the same element?

pogonyaev

Answer: Isotopes. An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.

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6 0

1 year ago

Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. The leaf of a corn pla

Gnoma [55]

Answer:

Part a)

$\rho = 52.9 ohm- m$

Part b)

the resistivity of corn plant is grater than the resistivity of muscle tissue in the human

Explanation:

Part a)

As we know the formula of resistance is given as

$R = \rho \frac{L}{A}$

here we know that

$\rho = \frac{RA}{L}$

here we have

$R = 2.3 M ohm$

$L = 20 cm$

$Area = (0.023)(0.20 \times 10^{-3})$

$Area = 4.6 \times 10^{-6} m^2$

now we have

$\rho = \frac{(2.3 \times 10^6)(4.6 \times 10^{-6})}{0.20}$

$\rho = 52.9 ohm- m$

Part b)

Resistivity of mucle tissue of human is is ranging from 15 ohm-m to 50 ohm m so here we can say that

the resistivity of corn plant is grater than the resistivity of muscle tissue in the human

4 0

2 years ago

Which of the following is a true statement about recycling?

Vilka [71]

Answer:

A. recycling allows resources to be reused, instead of dumped in landfills.

Explanation:

6 0

2 years ago

An object is 45.0 cm from a converging lens and the object is 1.90 cm tall. What is the position and height and orientation of t

Digiron [165]

Answer:

Height: 0.62 cm

Orientation: Inverted.

Explanation:

Object distance = -45 cm = u

focal length = 11 cm

$\frac{1}{v}-\frac{1}{u}=\frac{1}{f}\\\Rightarrow \frac{1}{v}=\frac{1}{f}+\frac{1}{u}\\\Rightarrow \frac{1}{v}=\frac{1}{11}+\frac{1}{-45}\\\Rightarrow v=\frac{11\times 45}{45-11}\\\Rightarrow v=14.6\ cm$

$\frac{h_i}{h_o}=\frac{d_i}{d_o}\\\Rightarrow h_i=h_o\times \frac{d_i}{d_o}\\\Rightarrow h_i=1.9\times \frac{14.6}{-45}\\\Rightarrow h_i=-0.62 cm$

Height: 0.62 cm

Orientation: Inverted.

3 0

2 years ago