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Vanyuwa [196]
3 years ago
8

If two measurements are very close to each other, then they are ____.

Physics
2 answers:
dimaraw [331]3 years ago
4 0
I'd say b, precise, here.
If there's an error somewhere in the experiment or project, then it is consistently .... wrong. So, just 'cos you measure something precisely, it doesn't mean that you've measured it accurately. Maybe an example would be a measurement of length. If you used a metal ruler at zero degrees C, you can measure to say half a millimetre. A series of measurements of the same object would give very similar readings. But, if you used same metal ruler at, say 100 celsius (implausible) then you'd probably get a different set of readings. 'cos of the expansion of the metal ruler.
Allisa [31]3 years ago
3 0
D accepted values because that's just how it is
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A mass on a spring oscillates with a period T. Part A If both the mass and the force constant of the spring are doubled, the new
garik1379 [7]

Answer:

The new time period will be T.

Explanation:

The time period in terms of spring constant and mass is given by :

T=2\pi\sqrt{\dfrac{m}{k}}

If mass and force constant is doubled, m' = 2m and k' = 2k

New time period is given by :

T'=2\pi\sqrt{\dfrac{m'}{k'}}

T'=2\pi\sqrt{\dfrac{2m}{2k}}

T'=2\pi\sqrt{\dfrac{m}{k}}

T'=T

So, the new period will remains the same. Hence, the correct option is (C).

4 0
3 years ago
In the qualifying round of the 50-yd freestyle in the sectional swimming championship, Dugan got an early lead by finishing the
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Answer:

v = 0

Explanation:

Given that,

Total distance is 50 yards

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Dugan finished the return leg (25.00 yd distance) in 10.22 seconds.

We need to find Dugan's average velocity for the entire race. As he returns at the initial position. As a result, the net displacement is equal to 0. So,

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6 0
4 years ago
Excess radiation can cause cancer. true or false
RSB [31]
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7 0
4 years ago
If you weigh 150 lbs. on the surface of Earth, how much would you weigh on Venus? On Mars?
Ghella [55]

Answer:

weight on Venus =  604.15 N

weight on Venus = 252.01 N

Explanation:

Given:

Weight on the earth , W = 150 lbs

now,

1 lbs = 4.45 N

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W = 150 × 4.45  = 667.5 N

now, mass on the earth, m = 667.5/9.8 = 68.11 kg

now,

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the acceleration due to   gravity on venus = 8.87 m/s²

thus,

weight on Venus = mass × acceleration due to   gravity on venus

or

weight on Venus = 68.11 × 8.87 = 604.15 N

⇒ weight on mars,

the acceleration due to   gravity on mars = 3.70 m/s²

thus,

weight on Venus = mass × acceleration due to   gravity on venus

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