1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ycow [4]
3 years ago
9

The force of 20 N acts upon a 5kg block. What is the acceleration of the block?

Chemistry
1 answer:
charle [14.2K]3 years ago
8 0

Answer:

<h2>The answer is 4 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

where

a is the acceleration

f is the force

m is the mass

From the question

f = 20 N

m = 5 kg

We have

a =  \frac{20}{5}  \\

We have the final answer as

<h3>4 m/s²</h3>

Hope this helps you

You might be interested in
an element has atomic number 10 and an atomic mass of 20. how many neutrons are in the atom of this element
Flura [38]
Hey there!

n = A - Z

n =  20 - 10

n = 10 
6 0
3 years ago
Read 2 more answers
What is the density of air at 75 F and latm pressure? Express in lbm/ft3 and kg/m3
ser-zykov [4K]

Answer : The density of air in lbm/ft^3 and kg/m^3 is, 0.0743lbm/ft^3 and 1.19kg/m^3 respectively.

Explanation :

PV=nRT\\\\PV=\frac{m}{M}RT\\\\P=\frac{m}{V}\frac{RT}{M}\\\\P=\rho \frac{RT}{M}\\\\\rho=\frac{PM}{RT}

where,

P = pressure of air = 1 atm

V = volume of air

T = temperature of air = 297 K

The conversion used for the temperature from Fahrenheit to degree Celsius is:

^oC=(^oF-32)\times \frac{5}{9}

^oC=(75-32)\times \frac{5}{9}=24^oC

The conversion used for the temperature from degree Celsius to Kelvin is:

K=273+^oC

K=273+24=297K

n = number of moles

m = mass of air

M = average molar mass of air = 28.97 g/mole

\rho = density of air = ?

R = gas constant = 0.0821 L.atm/mol.K

Now put all the given values in the above formula, we get:

\rho=\frac{PM}{RT}

\rho=\frac{(1atm)\times (28.97g/mole)}{(0.0821L.atm/mol.K)\times (297K)}

\rho=1.19g/L

Now we have to calculate density in lbm/ft^3.

Conversion used :

1g/L=0.0624lbm/ft^3

So,

1.19g/L=\frac{1.19g/L}{1g/L}\times 0.0624lbm/ft^3=0.0743lbm/ft^3

The density of air in lbm/ft^3 is, 0.0743lbm/ft^3

Now we have to calculate density in kg/m^3.

Conversion used :

1g/L=1kg/m^3

So,

1.19g/L=1.19kg/m^3

The density of air in kg/m^3 is, 1.19kg/m^3

8 0
3 years ago
If you have 3.54 g of H2, how many grams of NH3 can be produced?
morpeh [17]
3.54g H2 means you have 3.54 / 2  = 1.77 moles of H2, which means you have 1.77*2 = 3.54 moles of H atom.

Since 1 mole of NH3 has 3 moles of H, so you can produce 3.54 / 3 moles of NH3, which is (3.54/3) * (12+3) = 17.7 grams
5 0
3 years ago
A polyatomic ion is a tightly bound group of atoms that carries its own unique charge.
goldfiish [28.3K]
True would seem to be sufficient
8 0
3 years ago
How to find the number of atoms present in 22g of co2​
Vanyuwa [196]

Answer:

22g of  2

C

O

2

have  3.011×1023

3.011

×

10

23

  2

C

O

2

molecules.

Explanation:

Hope this helps! ^^

3 0
3 years ago
Other questions:
  • It kinda healing it is kinda doing well
    7·1 answer
  • WILL MARK BRAINLIEST
    11·1 answer
  • About how many elements make up everything on Earth?
    11·1 answer
  • Which words from the article help the reader to understand the importance of a special habitat?
    13·2 answers
  • A solution is prepared from 4.5701 g of magnesium chloride and 43.238 g of water. The vapor pressure of water above this solutio
    8·1 answer
  • 1.6x10^23 lead atoms. Find the weight in grams
    9·1 answer
  • Geologic time is a way to _______.
    15·1 answer
  • Highly reactive organic molecules
    14·1 answer
  • State the optimum pH for sucrase activity and describe how sucrase activity changes at more acidic and more alkaline pH values.
    10·1 answer
  • Mixed Practice:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!