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djyliett [7]
3 years ago
12

In a given chemical reaction the energy of the products is less than the energy of the reactants. Which statement is true for th

is chemical
reaction2
A
Energy is absorbed in the reaction
Energy is released in the reaction.
B
C
There is no transfer of energy in the reaction.
D.
Energy is lost in the reaction
Physics
1 answer:
Westkost [7]3 years ago
7 0

Answer:

B. Energy is released in the reaction.

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A 1800 kg car is accelerated at 2.6m/s^2 what force was needed to produce this acceleration
nataly862011 [7]

Answer:

4680 N

Explanation:

Force =mass x acceleration

Mass =1800kg

Acceleration =2.6m/s ^2

Hence Force = 1800kg x 2.6m/s

= 4680N

7 0
3 years ago
PLEASE HURRY Take 40 points.please just look at the picture.​
Fynjy0 [20]

Answer:

It you get a sushi for work, for a party, then it leads to people being happy, as an independant variable

It is changing the molecular structure of a protein

Explanation:

7 0
3 years ago
Explain why it is dangerous to jump from a fast moving train
Sergeu [11.5K]

Answer:

When you jump off a train, you jump off a certain height and your downwards (vertical) velocity is zero. But your forward (horizontal) velocity is not. You will hit the ground on split second with your horizontal velocity practically the same as the train.

Explanation:

you be in serious injury.

7 0
3 years ago
The Hall effect can be used to determine the density of mobile electrons in a conductor. A thin strip of the material being inve
solmaris [256]

Answer:

the density of mobile electrons in the material is 3.4716 × 10²⁵ m⁻³

Explanation:

Given the data in the question;

we make use of the following expression;

hall Voltage VH = IB / ned

where I = 2.25 A

B = 0.685 T

d =  0.107 mm =  0.107 × 10⁻³ m

e = 1.602×10⁻¹⁹ C

VH = 2.59 mV = 2.59 × 10⁻³ volt

n is the electron density

so from the form; VH = IB / ned

VHned = IB

n = IB / VHed

so we substitute

n = (2.25 × 0.685) / ( 2.59 × 10⁻³ × 1.602×10⁻¹⁹ × 0.107 × 10⁻³ )

n = 1.54125 /  4.4396226 × 10⁻²⁶

n = 3.4716 × 10²⁵ m⁻³

Therefore, the density of mobile electrons in the material is 3.4716 × 10²⁵ m⁻³

5 0
3 years ago
Hans Selye’s general adaptation syndrome theory proposes that adaptation to stress occurs in how many stages?
ANTONII [103]

<u>Answer:</u>

Adaption to stress occurs in three stages: alarm, fight or flight, exhaustion.

<u>Explanation:</u>

According to the general adaptation syndrome theory proposed by Hans Selye, the adaption to stress occurs in three stages which are:

1. alarm

2. fight or flight

3. exhaustion

This is a process which comprises of three stages that describes the physiological changes which a body undergoes when in stress (an emotional, mental and physical human response to a specific stimulus).

4 0
3 years ago
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