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kakasveta [241]
4 years ago
13

Elements in the same group/familly of the periodic table are similar in what way

Physics
1 answer:
olga nikolaevna [1]4 years ago
6 0
Their chemicals and their reactions, hope I helped
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Tarzan swings on a 36.0 m long vine initially inclined at an angle of 31.0◦ with the vertical. The acceleration of gravity if 9.
aleksandrvk [35]

Answer:

  v = 10 m/s

Explanation:

Given,

Length of the vine, l = 36 m

Angle of inclination = 31.0◦ with the vertical

acceleration due to gravity = 9.81 m/s²

Using Conservation of energy

      KE = PE

 \dfrac{1}{2} mv^2 = m g h

v = \sqrt{2gh}

v = \sqrt{2 g l(1-\cos \theta)

v = \sqrt{2\times 9.81\times 36 \times (1-\cos 31^0)

  v = 10 m/s

Hence, the speed of the swing is equal to 10 m/s

7 0
3 years ago
If 36C ofcharge pass through a write in 4s current is it carrying?​
charle [14.2K]

Answer:

The current flowing through the wire is 9 A.

Explanation:

Given;

quantity of charge passing through the wire, Q = 36 C

duration of the charge flow, t = 4 s

The current flowing through the wire is calculated as;

Q = It

I = Q / t

where;

I is the current flowing in the wire

I = 36/4

I = 9 A

Therefore, the current flowing through the wire is 9 A.

8 0
3 years ago
Which measure of dispersion indicates the extent to which each individual score in a data set varies from the mean of that set?
vichka [17]

Answer:

Option 2 - Standard deviation

Explanation:

To find : Which measure of dispersion indicates the extent to which each individual score in a data set varies from the mean of that set?

Solution :

Standard deviation is defined as,

  • It is a mathematical measure that is used to evaluate the difference between the mean value of a set of number and each value in the group.
  • It is calculated as the square root of variance by determining the variation between each data point relative to the mean.

The measure of dispersion that indicates how much scores in a sample vary around the mean of the sample is the standard deviation.

Therefore, option 2 is correct.

3 0
3 years ago
True or false
Readme [11.4K]

Answer:

true

Explanation:

I believe the answer i chose because the earths atmosphere is mostly made up of different things that causes the earth to interact with human life and also interacts with what's in the atmosphere like energy oxygen carbon dioxide and all the stuff like that i hope its right.

6 0
3 years ago
The total distance from a house to a school to is 9.5 km. A student travels all the way from his house to the school and back to
marysya [2.9K]

Answer:

0

Explanation:

Displacement is a vector from initial to final point. Because initial and final point are the same, so displacement is 0.

6 0
3 years ago
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