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romanna [79]
3 years ago
12

1. One of my goals is to get 8 hours of sleep a night. If I sleep 7,259,102 second, how many hours of sleep is that (w/ proper s

ig figs)?
2. Did I meet my goal?
3. How many seconds are in 8.0000 hours?
Chemistry
1 answer:
soldier1979 [14.2K]3 years ago
7 0

Answer:

2016.417222 hours

Explanation: you def made your goal

28800 seconds

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Newton's second law of motion is F = ma.
ZanzabumX [31]

<u>Answer:</u> The acceleration of the object is 2m/s^2. If net force increases, acceleration will also increase and if mass increases, the acceleration will decrease.

<u>Explanation:</u>

Force is defined as the product of object's mass and acceleration.

Mathematically,

F = ma     ......(1)

or,

a = F/m      .....(2)

where,

F = Force exerted on an object = 60N

m = mass of an object = 30kg

a = acceleration of the object = ?

Putting values in above equation, we get:

a = 60 kg.m/s^2/30 kg = 2m/s^2

The acceleration of the car is 2m/s^2.

From equation 2, it is visible that acceleration is directly proportional to force. This means that \if force increases, acceleration also increases.

And acceleration is inversely proportional to mass of the object. This means that if mass increases, the acceleration decreases.

Hence, if net force increases, acceleration will also increase and if mass increases, the acceleration will decrease.

7 0
3 years ago
Read 2 more answers
In the modern periodic table when elements are arranged according to their atomic
9966 [12]
In the modern periodic table when elements are arranged according to their atomic number.
3 0
3 years ago
Which element forms an ionic compound when it reacts with lithium?
Dennis_Churaev [7]
D. Br

Hope this helps!
4 0
3 years ago
Show how water can serve as a base by showing the chemical equation of water reacting with hydrochloric acid. g
goldfiish [28.3K]
So, water reacts with hydrochloric acid in the following formula

H2O + HCl —-> H3O+ + Cl-

We can visualize that when the two react, the hydrogen ions is taken on by the water molecule. This satisfies one of the definitions for a base

Bronsted acids = anything that donates a proton (H+ ion)

Bronsted bases = anything that accepts a proton (H+ ion)

So, as we can see, that is exactly what is happening. The Cl- and H+ detach and then the water takes on that extra H+.

H3O+ is what we call a hydronium ion
8 0
3 years ago
What pressure, in atmospheres, is exerted on the body of a diver if he is 38 ft below the surface of the water when atmospheric
Talja [164]

The pressure of diver = atmospheric pressure + water pressure

atmospheric pressure = 750 mmHg (as given) = 750 / 760 atm = 0.987 atm

Water pressure is

P = hρg

where

h = height of water = 38 ft

1 ft = 0.3048

38 ft = 11.58 m

ρ = density  = 1000 Kg / m³

g = gravitational constant  = 9.81 m/s2

P = 11.58 X 1000 X 9.81 = 113599.8 Kg / m s^2 Or N /m^2

1 N / m^2 = 1 pa = 9.869 X 10^-6 atm

P = 113599.8 Pa = 1.12 atm

Total pressure = 1.12 + 0.987 atm = 2.107 atm = 2.1 atm (two significant figures)



5 0
3 years ago
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