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mojhsa [17]
3 years ago
10

How does heat transfer? (Think temperature)​

Physics
1 answer:
yulyashka [42]3 years ago
5 0

Answer:

The rate at which temperature changes is proportional to the rate at which heat is transferred.

Explanation:

The temperature of a sample changes more rapidly if heat is transferred at a high rate and less rapidly if heat is transferred at a low rate

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Match the labeled parts of the cell to their functions. Packages and transports materials out of the cell: Breaks down sugar to
Licemer1 [7]

The parts of the cell are mitochondria, lysosomes, ribosomes etc. Their functions are as follows :

(1) Vesicle is a one of the large structure within the cell. Its function is to transfer materials out of the cell.

(2) Mitochondria is also called the power house of the cell. Its function is to break down sugar to supply energy for the cell.

(3) Lysosomes are the suicidal bag of the cell. It breaks down waste and other materials of the cell.

(4) Endoplasmic reticulum helps to produce, process and transport proteins in vesicles to the Golgi apparatus.

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3 years ago
What is a virgin i dk
anastassius [24]

Answer:

BYE- a person who has never had sexual intercourse.

Explanation:

3 0
4 years ago
Jack and Jill exercise in a 25.0 m long swimming pool. Jack swims 9 lengths of the pool in 156.9 s ( 2 min and 36.9 s ) , wherea
Leya [2.2K]

Answer:

Jill average velocity is  0

Jack  average velocity is 0.159337

Jill average speed = 1.593372

Jack average speed = 1.434034

Explanation:

given data

long swimming pool = 25.0 m

9 lengths of the pool = 156.9 s ( 2 min and 36.9 s )

10 lengths = same time interval

to find out

average velocity and average speed

solution

we know that average velocity that is express as

average velocity = \frac{displacement}{time}    .....................1

Jill come back where she start

so here velocity will be = 0

and

Jack ends up on the other end of pool

so average velocity =  \frac{25}{156.9}

average velocity = 0.159337

now we get here average speed that is express as

average speed = \frac{distance}{time}      .............2

jack speed = 9 × \frac{25}{156.9}

jack speed = 1.434034

and

Jill speed = 10 × \frac{25}{156.9}

Jill speed = 1.593372

5 0
4 years ago
A resistor, inductor, and capacitor are connected in series, each with effective (rms) voltage of 65 V, 140 V, and 80 V respecti
Morgarella [4.7K]

Answer:

The value of the effective (rms) voltage of the applied source in the circuit is 132 V

Explanation:

Given;

effective (rms) voltage of the resistor, V_R = 65 V

effective (rms) voltage of the inductor, V_L = 140 V

effective (rms) voltage of the capacitor, V_C = 80 V

Determine the value of the effective (rms) voltage of the applied source in the circuit;

V= \sqrt{V_R^2 + (V_L^2-V_C^2} )\\\\V= \sqrt{65^2 + (140^2-80^2} )\\\\V = \sqrt{4225+ 13200} \\\\V = \sqrt{17425} \\\\V = 132 \ V

Therefore, the value of the effective (rms) voltage of the applied source in the circuit is 132 V.

6 0
3 years ago
In a hydroelectric dam, water falls 35.0 m and then spins a turbine to generate electricity. Suppose the dam is 80% efficient at
anyanavicka [17]

Answer:

Height through the water falls h = 33 m

Efficiency of the of the unit

η

=

80

%

Power of the production unit

P

=

45

×

10

6

W

Acceleration due to gravity

g

=

9.8

m

/

s

Potential energy of one kg of water

Δ

U

=

m

∗

g

∗

h

=

1

∗

9.8

∗

33

=

323.4

J

Eighty percentage of the above energy is converted into electrical energy.

So eighty percentage of the potential energy of one kg of water

Δ

U

1

=

258.72

J

So mass of water required to flow per second to produce 45 MW of electricity in kilograms

M

=

P

Δ

U

1

=

45

∗

10

6

258.72

=

173933.2096

k

g

/

s

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Hydroelectric Energy: Definition, Uses, Advantages & Disadvantages

from Earth Science 101: Earth Science

Chapter 23 / Lesson 9

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