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frez [133]
3 years ago
11

What is 541.2 mg in grams

Physics
2 answers:
Greeley [361]3 years ago
7 0

Answer:

0.5412

Explanation:

PIT_PIT [208]3 years ago
5 0

Answer:

0.5142 grams.

Explanation:

I think

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As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself.There is no one ar
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Answer: magnitude of applied force is FA = mg + F

Where F is the resultant force downward that the rope moves with

Explanation:

Force downwards F is,

F = FA - T

T is the upwards tension force on the rope

FA is the actual applied force in pulling the rope down.

Therefore, T = FA - F .....equ. (1)

For the box to move up with force ma ( it's mass times its acceleration upwards) upwards tension on the roap must exceed its own weight mg ( it's mass times acceleration due to gravity 9.8m/s^2)

Therefore, ma = T - mg

T = ma + mg ..... equ. (2)

Equating equ. 1 and 2

T = FA - F = ma + mg

Therefore FA = ma + mg + F

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Explanation:

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2 years ago
What is the average power output pf a weight lifter who can lift 250 kg 2.0 m in 2.0 s
liq [111]

Answer:

Power = 2.45Kw or 2450 Watts.

Explanation:

<u>Given the following data;</u>

Mass, m = 250kg

Height, h = 2m

Time, t = 2secs

We know that acceleration due to gravity, g is equal to 9.8m/s²

Power can be defined as the energy required to do work per unit time.

Mathematically, it is given by the formula;

Power = \frac {Energy}{time}

But Energy = mgh

Substituting into the equation, we have

Power = \frac {mgh}{time}

Power = \frac {250*9.8*2}{2}

Power = \frac {4900}{2}

Power = 2450 Watts

To convert to kilowatt (Kw), we would divide by 1000

Power = 2450/1000

Power = 2.45Kw.

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8 0
3 years ago
A car speedometer has a 6% uncertainty. What is the range of possible speeds when it reads 100 km/h?
MAVERICK [17]

<span>Range = 88.5 Km/h - 94.5 Km/h</span><span>
</span>

3 0
2 years ago
Can someone please help me out?
maria [59]

Explanation:

If you want to get speed, u have to divided distance over time

The lowest speed will lose

8 0
3 years ago
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