CHEMISTRY MIDDLE SCHOOL

An 80 kg long jumper in flight accelerates at a rate of 10 m/s^2. What is the force of the long jumper

Answers

Answer 1
Answer:

Answer:

F = 800 N

Explanation:

Given data:

Mass = 80 Kg

Acceleration = 10 m/s²

Force = ?

Solution:

Formula:

F = m × a

F = force

m = mass

a = acceleration

Now we will put the values in formula:

F = m × a

F = 80 kg × 10 m/s²

F = 800 kg.m/s²

kg.m/s² = N

F = 800 N

Related Questions

A lab technician needs to create 570.0 milliliters of a 2.00 M solution of magnesium chloride (MgCl2). To make this solution, how many grams of magnesium chloride does the technician need?Refer to the periodic table for help. Express your answer to three significant figures.The required mass is grams.
A ph less than 7 is an ___, with ____ numbers indicating stronger acids.
Gold melts at 1064 c. Melting point is a ___.A)chemical change B)chemical propertyC)physical change D)physical property
A substance that has a uniform composition and is able to be separated by physical means
Describe three similarities and one difference in the reactions of lithium and potassium with water.

What is the shortest half life

Answers

Answer:

Hey!

Your answer is element A

Explanation:

Using the graph, the element A's emission of radioactive particles ends approximately after 6 years...

A HALF-LIFE IS "HALF" OF THAT TIME PERIOD!

So if the radiation goes for 6 years the half-life is 6 divided by two which gives you 3 years!

The rest however have a longer half-life...

Because they all end at 14 yrs so their half-life in 7 years!

HOPE THIS HELPS!!

What happens to sound waves then the source of a sound is moving toward you?

Answers

If you are facing the opposite direction of the way the wave is moving, then it will be higher. But, if you are moving the same direction as the wave, it will be lower, because the frequency should go down. Hope this helps! :)

How many atoms are there in 5.7 mol of Li?

Answers

Answer:Answer:

5.8

×

N

A

, where  

N

A

=

Avogadro's Number,  

6.022

×

10

23

⋅

m

o

l

−

1

Explanation:

And  

5.8

⋅

m

o

l

×

6.022

×

10

23

⋅

m

o

l

−

1

=

?

?

 

What is the mass of this quantity of lithium atoms? Hint, 1 mole has a mass of  

6.94

⋅

g

.

Explanation:

i hope this helps

Complete the following chemical equations BaCl2.2H2O

Answers

Answer:

BaCl_2.2H_2 O > BaCl_2  + 2H_2 O

Explanation:

Balancing is making the number of atoms of each element same on both the sides  (reactant and product side).

To find the number of atoms of each element we multiply coefficient * subscript  

For example 5 Ca_1 Cl_2 contains  

5 × 1 = 5 ,Ca atoms and

5 × 2 = 10, Cl atoms  

If there is a bracket in the chemical formula  

For example 3Ca_3 (P_1 O_4 )_2 we multiply coefficient × subscript × number outside the bracket to find the number of atoms  

(Please note: 3 is the coefficient, and if there is no number given then 1 will be the coefficient )

So

3 × 3 = 9 , Ca atoms  

3 × 1 × 2 = 6, P atoms  

3 × 4 × 2 = 24, O atoms are present.

So

Let us balance the equation given

BaCl_2.2H_2 O > BaCl_2  + 2H_2 O

(balanced  equation)

Reactant side              Elements               Product side

1                                         Ba                                1

2                                         Cl                                 2

4                                          H                                 4

2                                          O                                 2

Balanced!!!

In a periodic table, dots around an elements symbol indicate the number of valence electrons in an atom ? True Or False

Answers

True,I think.(so don't really count on my answer sorry :D)

A tank has 30 gallons of gasoline how many liters of gasoline are there in the tank

Answers

Answer:

113.55 l

Explanation:

1 gallon equals 3,785 liters.

How many liters are in 30 gallons?

We apply a simple rule of three to solve it

1 gallon \longrightarrow 3.785 l\n 30 gallons \longrightarrow x \n x=((30 gallons)(3.785l))/(1 gallon)= 113.55 l.

Answer: I think it is: 113.5624 Liters of gas

Explanation:
Other Questions
during the formation of an ionic bond, electrons are transferred from one atom to another true or false
Which quantity represents the number of protons in an atom?(a) atomic number(b) oxidation number(c) number of neutrons(d) number of valence electrons
Which is the solubility product expression for Na3PO4(s)?A. [Na] +3(PO4)3-B. [Na +3] / [PO43-]C. [Na +] }[PO43-)D. [Na] +3/[PO4) 3 -
. Which type of energy is involved in the operation of simple machines?