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Mama L [17]
4 years ago
12

Kinetic and potential energies of a roller coaster I'm doing a portfolio

Physics
1 answer:
Brut [27]4 years ago
4 0
On a roller coaster<span>, </span>energy<span> changes from </span>potential<span>to </span>kinetic energy<span> and back again many times over the course of a ride. </span>Kinetic energy<span> is </span>energy<span> that an object has as a result of its motion. All moving objects possess </span>kinetic energy, which is determined by the mass and speed of the object.

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What is the % error in using g = 10.0 m/s^2? (Take the value ofg as 9.8 m/s^2)
Alenkasestr [34]

Answer:

So percentage error will be 2 %

Explanation:

We have given initial value of acceleration due to gravity g=10m/sec^2

And final value of acceleration due to gravity g=9.8m/sec^2

We have to find the percentage error

We know that percentage error is given by percentage\ error=\frac{initial\ value-final\ value}{initial\ value}\times 100

So percentage\ error=\frac{10-9.8}{10}\times 100=2 %

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3 years ago
The heaviest weight ever lifted by a human ear is 51.7kg. how many pounds is this?
nataly862011 [7]

Answer:

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Your answer will be EXACTLY 113.97899 Pounds

Explanation:

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6 0
3 years ago
What is the maximum powr of a module in Watts to the nearest whole Watt?​
KonstantinChe [14]

Complete question is;

You are looking at a module specification

sheet that has the table of information

below. What is the maximum power of this

module in Watts to the nearest whole Watt?

Value

Polycrystalline si

Characteristic

Cell Type

Cell

Configuration

Voc

160 in series

137.2 V

V_imp: 29.3 V

Ilsc: 8.60 A

I_Imp: 8.02 A

Dimensions (mm/in): 1000 x 1600 x 50 mm / 39.4" x 63" x 2"

Weight: 10 kg / 22 lbs​

Answer:

P ≈ 235 Watts

Explanation:

Formula for power is;

P = IV

Now, for maximum power, we will make use of I_imp and V_imp given

Thus, P = I_imp × V_imp

We are given;

V_imp: 29.3 V

I_Imp: 8.02 A

Thus: P = 8.02 × 29.3 = 234.986 Watts

We are to approximate to the nearest whole watt.

Thus: P ≈ 235 Watts

6 0
3 years ago
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