All categories

3 years ago

Is a Frisbee flying through the air mechanical energy

Chemistry

1 answer:

victus00 [196]3 years ago

4 0

Yes because mechanical energy is the motion of an object. hope that helped!

You might be interested in

A hydrobromic acid (HBr) solution has a molar concentration of 0.055 M, Calculate the and pH of the solution. (Remember that Kw=

seraphim [82]

Answer: Im not sure but i think its B

Explanation: Its hard to explain so im

not gonna do it

5 0

3 years ago

The molarity of a solution containing 7.1 g of sodium sulfate in 100 mL of an aqueous solution is

Sergio [31]

Answer:

0.5 M

Explanation:

First we have to start with the molarity equation:

$M=\frac{mol}{L}$

We need to know the amount of moles and the litters.

If we have 100 mL we can convert this value to “L”, so:

$100~mL\frac{1~L}{1000~mL}$

$0.1~ L$

Now we can continue with the moles, for this we have to know the formula of sodium sulfate $Na_2SO_4$ , with this formula we can calculate the molar mass if we know the atomic mass of each atom on the formula (Na: 23 g/mol, S: 32 g/mol, O: 16 g/mol). We have to multiply each atomic mass by the amount of atoms in the formula, so:

$molar~ mass~=~ (23*2)+(32*1)+(16*4)= ~ 142~ g/mol$

In other words:

$1~mol~ Na_2SO_4=~142~g~ of~Na_2SO_4$

Now we can calculate the moles:

$7.1~g~ of~Na_2SO_4\frac{1~mol~ Na_2SO_4}{142~g~ of~Na_2SO_4}$

$0.05~mol~ Na_2SO_4$

Finally, we can calculate the molarity:

$M=\frac{0.05~mol~ Na_2SO_4 }{0.1~ L}$

$M=0.5$

I hope it helps!

4 0

3 years ago

Read 2 more answers

Which of the following methods for increasing the rate of chemical reaction increases the effectiveness of the interactions betw

denpristay [2]

Answer:

Increasing the surface area of the reactants

Explanation:

An increase in surface area of the reactant will always cause an increase in the rate of reaction. This is so because, an increase in the surface area of the reactant will cause the reactant particles to collide effectively thereby bringing about an increase in the reaction rate.

Collision theory suggests that for a reaction to occur, the reactant particles must collide with the right orientation. As the surface area of the reactants are increased, the reactants particles collide more with the right orientation bringing about definite increase in the rate of reaction.

3 0

3 years ago

5. What are Opioids?

Alex_Xolod [135]

The answer to your question is the first one!

6 0

3 years ago

Which of the following statements about elements is not true?

guapka [62]

Answer:

Option A is not true

Explanation:

Could you please follow me and mark me as the brainliest answer

6 0

3 years ago