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3 years ago

Select the correct answer.

Physics

2 answers:

Bas_tet [7]3 years ago

5 0

C light energy

The solar energy from the sun converts to chemical potential energy

Ilya [14]3 years ago

5 0

Answer:

Explanation:

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Cat walks 100 m East, then turns around and walks 25 m west. What is the cats displacement?

kvasek [131]

Answer:

Explanation:

If a cat walk 100m East, this means that it is walking in the positive x direction, the distance will therefore be +100m

If it turns around and walks 25 m west, the direction of movement is in the negative x direction i.e -25m

Taking the sum;

Displacement = +100m - 25m

Displacement of the cat = 75m

hence the cats displacement is 75m

8 0

3 years ago

Magnetic field lines are more concentrated at the poles of the magnet<br> True<br> False

yKpoI14uk [10]

Answer:

True! UwU

Explanation:

the magnetic field is strongest near to the poles of the magnet were the lines of flux are more closely spaced.

8 0

3 years ago

The valu

natulia [17]

Answer:

$\% Error = 2.6\%$

Explanation:

Given

$x: 1.54, 1.53, 1.44, 1.54, 1.56, 1.45$

Required

Determine the percentage error

First, we calculate the mean

$\bar x = \frac{\sum x}{n}$

This gives:

$\bar x = \frac{1.54+ 1.53+ 1.44+ 1.54+ 1.56+ 1.45}{6}$

$\bar x = \frac{9.06}{6}$

$\bar x = 1.51$

Next, calculate the mean absolute error (E)

$|E| = \sqrt{\frac{1}{6}\sum(x - \bar x)^2}$

This gives:

$|E| = \sqrt{\frac{1}{6}*[(1.54 - 1.51)^2 +(1.53- 1.51)^2 +.... +(1.45- 1.51)^2]}$

$|E| = \sqrt{\frac{1}{6}*0.0132}$

$|E| = \sqrt{0.0022}$

$|E| = 0.04$

Next, calculate the relative error (R)

$R = \frac{|E|}{\bar x}$

$R = \frac{0.04}{1.51}$

$R = 0.026$

Lastly, the percentage error is calculated as:

$\% Error = R * 100\%$

$\% Error = 0.026 * 100\%$

$\% Error = 2.6\%$

4 0

3 years ago

after five days both sets of cheese that i touched are moldy both set of cheese that i left alone have no mold

musickatia [10]

The bacteria from your hands was spread to the cheese that you touched, effectively creating a culture because the bacteria had a food supply enough to build a colony.

4 0

3 years ago

Average human body temperature is 98.6F. What is the equivalent in degrees Celsius?

nikdorinn [45]

Answer:

37 degrees Celsius

Explanation:

From the question

F =98.6F

C = 5/9 x (F-32)

C = 5/9 x (98.6 - 32)

= 5/9 x 66.6

= 333/9

= 37 degrees Celsius

4 0

3 years ago