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Viktor [21]
2 years ago
6

A driver comes to a red light and applies her brakes to decelerate her car to a complete stop. The car’s brakes turned its kinet

ic energy into __________.
Group of answer choices

a. elastic potential energy

b. gravitational potential energy

c. thermal energy

d. electrical energy
Physics
1 answer:
denis23 [38]2 years ago
7 0
C . Thermal energy I think
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Under certain circumstances, potassium ions (K ) in a cell will move across the 8.15 nm thick cell membrane from the inside to t
Verdich [7]

Answer:

1.288\times 10^{-20}\ J

Increase

Explanation:

q = Charge in the potassium ion = 19e-18e

e = Charge of electron = 1.6\times 10^{-19}\ C

V_2-V_1 = Change in potential = 0-(-80.5\times 10^{-3})

Change in electric potential is given by

E=q(V_2-V_1)\\\Rightarrow E=(19e-18e)(0-(-80.5\times 10^{-3})\\\Rightarrow E=1.6\times 10^{-19}\times 80.5\times 10^{-3}\\\Rightarrow E=1.288\times 10^{-20}\ J

The energy is 1.288\times 10^{-20}\ J

The potential energy will increase.

4 0
3 years ago
A car is traveling at 40 m/s for 20 seconds. How far did it travel in this time?
barxatty [35]
<h3>Answer:</h3>

800 meters

<h3>Explanation;</h3>

<u>We are given;</u>

  • Speed as 40 m/s
  • Time as 20 seconds

We are required to determine the distance traveled

  • Speed refers to the rate of change in distance.
  • It is given by;

Speed = Distance ÷ time

Rearranging the formula;

Distance = speed × time

In this case;

Distance = 40 m/s × 20 sec

              = 800 meters

Thus, the distance traveled by the car is 800 m

7 0
3 years ago
Which statement describes how a machine can help make work easier? It can put out more force than the input force by decreasing
Neko [114]

Answer:

it can be

Explanation:

7 0
3 years ago
Sonia was experimenting with electric charges. She tied two inflated balloons together, held them next to each other, and rubbed
lions [1.4K]

Answer: They will repel each other.

Explanation:

Two inflated balloons when rubbed with woolen cloth will lead to repeal each other because of the similar charges on both the balloons.

Rubbing both the balloons together by the woolen cloth will introduce negative charge in the balloons.

As, we know that the same charges repeal each other both of the balloons with be apart from each other.

This is due to the static electricity, the negatively charged particles jump to the positive one. When balloons are rubbed they become negatively charged.

3 0
4 years ago
Read 2 more answers
In the periodic, the elements are in order based on
Helga [31]

Answer: informative array

Explanation:

"The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. The rows are called periods."

https://www.livescience.com/25300-periodic-table.html

5 0
4 years ago
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