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
STatiana [176]
3 years ago
6

How much force in needed to accelerate 66 kg skier at 2 m/sec?

Chemistry
2 answers:
Rom4ik [11]3 years ago
4 0

Answer:

F

=

(

66

k

g

)

(

2

m

s

−

2

)

F

=

132

N

Explanation:

inysia [295]3 years ago
3 0

Answer:

132 Newtons

Explanation:

Force is mass times acceleration, so just multiply the numbers together. With the specified units for mass and acceleration the force will be in Newtons.

Hope this helps :)

You might be interested in
What mass of NH3 can be made from 35.0g of N2?
egoroff_w [7]
Formation of ammonia by nitrogen and hydrogen is habers process wher 28g N2 results in formation of 34g NH3
so 35g N2 will form 34*35/28=42.5g NH3 where it given that reaction takes place in excess of H2
N2+3H2 gives 2NH3
4 0
3 years ago
Read 2 more answers
The anticodon is the three-base code on the tRNA molecule that binds to the codon on mRNA. What is the associated codon for the
neonofarm [45]
It is AAU
A-U
U-A
C-G
G-C
5 0
3 years ago
Read 2 more answers
A sample of octane (c8h18 that has a mass of 0.750 g is burned in a bomb calorimeter. as a result, the temperature of the calori
timurjin [86]
In a closed system, heat should be conserved which means that the heat produced in the calorimeter is equal to the heat released by the combustion reaction. We calculate as follows:

Heat of the combustion reaction = mC(T2-T1)
                                                          = 1 (1.50) (41-21)
                                                          = 30 kJ
7 0
3 years ago
Read 2 more answers
Which model is based on Bohr's quantum model?
Kaylis [27]

Answer:

Model D

Explanation:

Bohr's Model has a planetary look. Where the electrons are in an orbit.

8 0
3 years ago
Read 2 more answers
Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation f
dmitriy555 [2]

<u>Answer:</u> The mass of cryolite produced is 51.48 kg

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}      .....(1)

  • <u>For aluminium oxide:</u>

Given mass of aluminium oxide = 12.5 kg = 12500 g    (Conversion factor:  1 kg = 1000 g)

Molar mass of aluminium oxide = 101.96 g/mol

Putting values in equation 1, we get:

\text{Moles of aluminium oxide}=\frac{12500g}{101.96g/mol}=122.6mol

  • <u>For NaOH:</u>

Given mass of NaOH = 55.4 kg = 55400 g

Molar mass of NaOH = 40 g/mol

Putting values in equation 1, we get:

\text{Moles of NaOH}=\frac{55400g}{40g/mol}=1389mol

  • <u>For HF:</u>

Given mass of HF = 55.4 kg = 55400 g

Molar mass of HF = 20 g/mol

Putting values in equation 1, we get:

\text{Moles of HF}=\frac{55400g}{20g/mol}=2770mol

For the given chemical reaction:

Al_2O_3(s)+6NaOH(l)+12HF(g)\rightarrow 2Na_3AlF_6+9H_2O(g)

By Stoichiometry of the reaction:

1 mole of aluminium oxide reacts with 6 moles of sodium hydroxide and 12 moles of HF.

So, 122.6 moles of aluminium oxide will react with (6\times 122.6)=735.6mol of sodium hydroxide and (12\times 122.6)=1471.2mol of HF

As, given amount of NaOH and HF is more than the required amount. So, they are considered as an excess reagent.

Thus, aluminium oxide is considered as a limiting reagent because it limits the formation of product.

By Stoichiometry of the reaction:

1 mole of aluminium oxide produces 2 moles of cryolite

So, 122.6 moles of aluminium oxide will produce = \frac{2}{1}\times 122.6=245.2mol of cryolite

Now, calculating the mass of cryolite by using equation 1:

Molar mass of cryolite = 209.94 g/mol

Moles of cryolite = 245.2 mol

Putting values in equation 1, we get:

245.2mol=\frac{\text{Mass of cryolite}}{209.94g/mol}\\\\\text{Mass of cryolite}=(245.2mol\times 209.94g/mol)=51477.3g

Converting this into kilograms, we use the conversion factor:

1 kg = 1000 g

So, 51477.3 g\times (\frac{1kg}{1000g})=51.48kg

Hence, the mass of cryolite produced is 51.48 kg

7 0
3 years ago
Other questions:
  • A "coffee-cup" calorimetry experiment is run for the dissolution of 2.5 g of lithium nitrate placed into 97.2 mL of water. The t
    10·1 answer
  • A chlorine atom in its ground state has a total of seven electrons in orbitals related to the atoms third energy level. how many
    11·1 answer
  • 6. Calculate the pH of the 0.20 M NH3/0.20 M NH4Cl buffer. What is the pH of the buffer after the addition of 10.0 mL of 0.10 M
    14·2 answers
  • How many hydrogen atoms are in 4H2SO4
    5·2 answers
  • The group that has a single factor changed in an experiment is called:
    9·1 answer
  • Can y’all help me with this question How many atoms are found in the chemical formula below Al2( SiO3)2
    11·1 answer
  • How many moles of ethane gas, C2H6(g), will occupy 15.0 L at 30 degrees Celsius and 5.0 atm?
    10·1 answer
  • when an inflated Balloon in rubbed against the wall ,it sticks to the wall for a while why give reason ​
    10·1 answer
  • Classification of organisms allow the identification of shared characteristics, which reveals how organisms interact with the co
    7·2 answers
  • The molar mass of copper(II) chloride (CuCl2) is 134. 45 g/mol. How many formula units of CuCl2 are present in 17. 6 g of CuCl2?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!