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
Wewaii [24]
3 years ago
14

If you use a horizontal force of 32.0 N to slide a 12.5 kg wooden crate across a floor at a constant velocity, what is the coeff

icient of kinetic friction between the crate and the floor?
Chemistry
1 answer:
sergejj [24]3 years ago
6 0

Answer:

Value of coefficient of kinetic friction is 0.26 .

Explanation:

Given:

Mass of wooden crate, m = 12.5 kg.

Horizontal force to keep the block moving with constant velocity, F = 32.0 N.

Since, the block is moving with constant velocity.

So, net force experience by it is zero.

Therefore, fore of friction is equal to applied force.

Now, force of friction , F=\mu_kN  (  here \mu_k is coefficient of kinetic friction and N is normal force)

Therefore, \mu_kN=\mu_k\times mg=\mu_k\times 12.5 \times 9.8=122.5\times \mu_k

Now, both forces are equal.

122.5\times \mu_k=32\\\mu_k=\dfrac{32}{122.5}=0.26      

The value of coefficient of kinetic friction is 0.26 .

Hence, it is the required solution.

You might be interested in
1. Choose the correct answer from the given alternative. 1. A blood sample analysis showed that a total of 0.0000036g lead. Expr
son4ous [18]

Answer:

3.6 micrograms answers (c)

Explanation:

5 0
2 years ago
A fruit-and-oatmeal bar contains 142 nutritional Calories. Convert this energy to calories
madreJ [45]

Answer:

a fruit and oatmeal bar contains 142000 calories.

A nutritional calorie, or kilocalorie, is equal to 1000 calories.

E = 142 kcal · 1000 cal/kcal.

E = 142 000 cal.

Calorie (cal), or small calorie, is the amount of energy needed to heat one gram of water by one degree Celsius.

One small calorie is approximately 4.2 joules.

A calorie is a unit of energy.

Explanation:

hope it helps  :)

4 0
3 years ago
Identify the element using the Bohr model below.​
Maurinko [17]
Nitrogen I believe . I need 20 characters.
3 0
3 years ago
Do gold and silver have the same extensive properties​
Pepsi [2]

Answer:

They do not

Explanation:

Gold is more advanced

8 0
3 years ago
Read 2 more answers
About how long is 1 meter?
lyudmila [28]
It should be 3 feet... I did something like this one day in school but I’m trying to remember
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which list consists of types of chemical formulas?
    15·1 answer
  • What is the chemical formula for anionic surfactant (science)?
    9·1 answer
  • Which statement describes the valence electrons in ionic bonds?
    8·2 answers
  • X-rays with a wavelength of 8.82 nm. Calculate the frequency of the x rays
    7·1 answer
  • A chemist dissolves 0.9 g of an unknown monoprotic (one acidic H) acid in water. She finds that 14.6 mL of 0.426 M NaOH are requ
    15·1 answer
  • What is the charge of the hydride ion?​
    10·1 answer
  • Dissolving 4.02 g of CaCl2 in enough water to make 349 mL of solution causes the temperature of the solution to increase by 3.91
    8·1 answer
  • Can someone pls explain? :'(
    8·1 answer
  • What elements are most commonly used in wiring?
    15·1 answer
  • What type of reaction is the following reaction?<br> AgNO3+Na→ NaNO3 + Ag
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!