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Delvig [45]
3 years ago
8

Why is it impossible to "defy gravity“?

Physics
1 answer:
Kamila [148]3 years ago
6 0

Answer:

i belive its d

Explanation:

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A 30 kg dog runs at a speed of 15<br> What is the dog's kinetic energy?
sattari [20]
Ke= 1/2 mv ^ 2
15x 15 = 225
225 x 30 = 6750
6750/2 = 3375 J
Ke = 3375 J
3 0
2 years ago
Products must equal which in a chemical reaction?
Evgesh-ka [11]

I think it is reactants

3 0
3 years ago
Grinding quartz crystals down to produce sand is an example of a a. change of state. c. chemical reaction. b. chemical change. d
seraphim [82]
D. A physical change

The makeup of it is still the same it's just ground up
5 0
3 years ago
A mixed cost contains Select one:
-Dominant- [34]

A mixed cost contains a variable element and a fixed element.

Option a

<u>Explanation:</u>

Mixed costs are those costs that has both variable and fixed component. Example: operating cost of a machinery includes fixed costs that cannot be changed with other variable costs like fuel, insurance, depreciation, etc.

It is also named as semi-variable costs. And the formula to calculate mixed cost is as follows,

y=a+b x

where,

  • y is the "total cost "
  • a is the "fixed cost per period"
  • b is the "variable rate per unit of activity"
  • x is the "number of units of activity"
3 0
3 years ago
Define bond length using your own words​
Brut [27]

Answer:

the free encyclopedia. In molecular geometry, bond length or bond distance is defined as the average distance between nuclei of two bonded atoms in a molecule. It is a transferable property of a bond between atoms of fixed types, relatively independent of the rest of the molecule.

Explanation:

6 0
3 years ago
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