Match the vocabulary terms to their definitions.

1 .
meter
standard metric unit of length
2 .
hypothesis
a proposed explanation for a scientific problem
3 .
mass
standard unit of volume
4 .
liter
the curved top surface of a liquid column
5 .
control
a quantity in an experiment that remains unchanged or constant
6 .
meniscus
amount of matter in an object

The questions 1, 2, and 5 are already matched in correct order.

Step-by-step explanation:

1. Meter            - standard metric unit of length.

2. hypothesis  - a proposed explanation for a scientific problem.

3. mass            - amount of matter in an object.

4. liter               - standard unit of volume.

5. control         - a quantity in an experiment that remains unchanged  or constant.

6. meniscus     - the curved top surface of a liquid column.

intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

step-by-step explanation:

required vector is consists of the two componentsvx= 2+4=6 units   and vy= 1 unit and vx ⊥ vywe will use pythagorian theorem to find intensity of the vector vv∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 unitsthe angle ∡α between vector and east direction we wil find with tanαtanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

hope this

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

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