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3 years ago

A tissue is a group of similar cells that perform a specific function in an organism true or false

Physics

2 answers:

bogdanovich [222]3 years ago

8 0

Answer:

This is true

lawyer [7]3 years ago

7 0

Answer:

true

Explanation:

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A child blows a leaf from rest straight up in the air. The leaf has a constant upward acceleration of magnitude 1.0\,\dfrac{\tex

Novosadov [1.4K]

Answer:

Explanation:

Given

Acceleration a = 1.0m/s²

Displacement S = 1.0m

Required

Time t taken by the leaf to displace

Using the equation of motion

S = ut+1/2at²

Substitute

1.0 = 0+1/2(1)t²

1 = t²/2

Cross multiply

t² = 2

t = ±√2

t = 1.41secs

It takes the leaf to 1.41s to displace by 1m upward

6 0

3 years ago

All the colors of the rainbow are hiding where?

Charra [1.4K]

They're not hiding anywhere. They're all right there in the light that's shining into the mist.

It's just that when ALL the colors shine into your eye at the same time, your brain says "white".

I have a question: By any chance, do you have a sister Shifra ?

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3 years ago

A substance sample has a Mass of 45.0 g, and the Data Safety

marishachu [46]

The volume of the sample is 48.39 cm³.

<h3 /><h3>What is volume?</h3>

The term volume refers to the amount of three-dimensional space taken up by an item or a closed surface

To calculate the volume of the sample, we use the formula below

Formula:

D = m/v
v = m/D................ Equation 1

Where:

m = Mass of the smaple
D = Density of the sample
v = Volume of the sample.

From the question,

Given:

m = 45 g
D = 0.93 g/cm³

Substitute these values into equation 1

v = 45/0.93
v = 48.39 cm³

Hence, the volume of the sample is 48.39 cm³.

Learn more about volume here:brainly.com/question/27710307

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2 years ago

Two small plastic spheres are given positive electrical charges. When they are a distance of 14.8cm apart, the repulsive force b

sdas [7]

Answer:

Explanation:

Case I: They have same charge.

Charge on each sphere = q

Distance between them, d = 14.8 cm = 0.148 m

Repulsive force, F = 0.235 N

Use Coulomb's law in electrostatics

$F=\frac{Kq_{1}q_{2}}{d^{2}}$

By substituting the values

$0.235=\frac{9\times10^{9}q^{2}}{0.148^{2}}$

$q=7.56\times10^{-7}C$

Thus, the charge on each sphere is $q=7.56\times10^{-7}C$ .

Case II:

Charge on first sphere = 4q

Charge on second sphere = q

distance between them, d = 0.148 m

Force between them, F = 0.235 N

Use Coulomb's law in electrostatics

$F=\frac{Kq_{1}q_{2}}{d^{2}}$

By substituting the values

$0.235=\frac{9\times 10^{9}\times 4q^{2}}{0.148^{2}}$

$q=3.78\times10^{-7}C$

Thus, the charge on second sphere is $q=3.78\times10^{-7}C$ and the charge on first sphere is $4q = 4\times 3.78\times 10^{-7}=1.51 \times 10^{-6} C$ .

6 0

3 years ago

Which of the following properties did Rutherford use in his experiment?

Ronch [10]

<u>Answer</u>:

(C) The positive charge of the alpha particles and the negative charge of the electrons are the properties Rutherford used in his experiment

<u>Explanation</u>:

In his scattering experiment, scientist Ernest Rutherford used the property of positively charged alpha particles and negatively charge electrons. He performed this experiment by passing some of the alpha particles through a gold foil. The result was that the some alpha particles scattered while some passed through the gold foil without collision.

He concluded that the alpha particles are centrally positively charged and needed a large amount repelling force. This experiment of Rutherford is also known as Rutherford model of atom. This experiment helped him in doing so many other discoveries.

3 0

4 years ago