PHYSICS HIGH SCHOOL

Can someone explain this please?
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Can someone explain this please? (: - 1

Answers

Answer 1
Answer:

Answer:

a= kinetic energy vs. different masses at same speed, b= kinetic energy vs. same masses at different speeds

Explanation:

graphs are looking at speed so masses don't matter as much. same speed the whole time will equal same kinetic energy the whole time.

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When celery is placed in a glass of pure water the solution inside its cells is _____ compared to the water.?

Answers

The correct answer to the question above is hypertonic. When celery is being placed in a glass of pure water, the solution inside its cells is going to appear as hypertonic compared to the water. This means that the cells inside has a higher concentration than outside.

If a platinum wire has a resistance of 15 Ω and is connected across the terminals of a 3.0 V flashlight battery, how much current is in the wire?

Answers

The voltage is presented by the equation V = IR where V is voltage in V, I is current in amperes ad R is resistance in ohms. If a platinum wire has a resistance of 15 Ω and is connected across the terminals of a 3.0 V flashlight battery, the current can be solved through V= IR, 3.0 V = I (15 Ω), and the current is 0.2 A.

Specific data such as age, income, family size, and occupation, used for marketing purposes, is called A. a secondary market.
B. demographics.
C. survey statistics.
D. the target market.

Answers

Answer;

B. demographics.

Specific data such as age, income, family size, and occupation, used for marketing purposes, is called  demographics.

Explanation;

  • Demographics are features of a particular population. It involves the study of a population based on factors such as age, sex, race, family size and occupation, etc.
  • For marketing purposes firms or companies use specific data such as age, income, family size, religion, race, nationality and occupation. This may be referred to as demographic segmentation, which is used by the companies to get the right population using their products.
B. demographics.

Specific data such as age, income, family size, and occupation, used for marketing purposes, is called demographics.
NOT:
A. a secondary market.
C. survey statistics.
D. the target market.

What energy transformation takes place when you stretch a bungee cord?A.
Kinetic energy transforms into potential energy.

B.
Mechanical energy transforms into sound energy.

C.
Elastic energy transforms into kinetic energy.

D.
Potential energy transforms into elastic energy.

Answers

Answer:

D.

Potential energy transforms into elastic energy.

At a constant pressure and a temperature of 280 K, the gas in a cylinder has a volume of 10.0 liters. If the volume of the gas is increased to 20.0 liters, what is the new temperature? 2800 K 28 K 140 K 560 K

Answers

560K I believe is the answer

Which change increases the electric force between objects? A) Two neutral objects are moved closer together.
B) Electrons are added to two negatively charged objects.
C) Two oppositely charged objects are moved farther apart.
D) The charge on two positively charged objects is reduced.

Answers

By definition we have that the electric force is given by:

Where,

k: proportionality constant

q1: electric charge of object 1

q2: electric charge of object 2

d: distance between both objects

Therefore, to increase the electric power there are two possible cases:

1) Add more load to each object

2) Decrease the distance between objects.

The option that increases the electric force for this case is:

Electrons are added to two negatively charged objects.

This is because the values of q1 and q2 increase.

Answer:

A change that increases the electric force between objects is:

B) Electrons are added to two negatively charged objects.

Answer

B) Electrons are added to two negatively charged objects.

Explanation:

i took the test

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