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Jobisdone [24]
3 years ago
12

A teenager throws a 7.26 kg rock into a lake, trying to make a big splash. If the rock is travelling at a speed of 7.5 m/s, how

much kinetic energy does the rock have?
Biology
1 answer:
kherson [118]3 years ago
5 0

Explanation:

K.E = 1/2mv²

1/2 x 7.26 x 7.5²= 204.19j

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You are looking through a microscope at a cell in a phase of cell division. you see a double row of chromosomes lined up at the
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3 years ago
For every action or force<br> in nature, there is an equal<br> and opposite reaction.
tatyana61 [14]

Answer:

Newton's Third Law of Motion

Explanation:

Newton's third law of motion states that any object that has a force applied to will react in the opposite direction

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4 0
3 years ago
Which comparisons of Trial A (no immunity) and
VashaNatasha [74]

Answer:

1.

3.

4.

Explanation:

In trial A, people have no immunity so there are more chances of infection and in trial C, only 50% of people have immunity so chances of infection are less, so infection will spread faster in trial A than trial C.

If compared, trial C will have less infected people than trial A because people in trial A has no immunity and people in trial C have 50% of immunity, so only fewer people will get infected even after six point of contact.

As percentage of immune people (trial C) is 50, so there are equal chances of immunity and non-immunity. there are three reasons of infection that include source, susceptible person and transmission. source and susceptible person can be the reason of infection in some non-immune people but the transmission reason can vary. s<em>o, there is probability that three nonimmune people lie under transmission reason and are not coming in contact with infected  people, medical equipment or environment, that causes infection and those three people are not getting infected.</em>

<em>Hence, the correct options are 1, 3 and 4.</em>

5 0
3 years ago
Item 5 What is the role of a generator in producing electricity? The generator stores electrical energy for later use in homes a
Anni [7]

Answer:

The generator transforms the mechanical energy of the turbine into electrical energy

Explanation:

Electricity generator is a device that is used in generating power supply which can be used in industries, homes and for commercial and private purposes.

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The capacity of each generator determines the amount of energy it can supply to a given place.

4 0
3 years ago
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slavikrds [6]

Answer:

one way of the planet heating up is the fumes of are vehicles it pollutes the ozone layer there for making it slowly go away the ozone layer keeps some of the suns heat out and when its going  away its making more heat come through      i am  not shore if its right but hope it helps and i am also in 11th grade so i know a little

Explanation:

7 0
3 years ago
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