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2 years ago

What is the meaning of the word "force"?

Physics

1 answer:

WARRIOR [948]2 years ago

5 0

Answer: Strength or energy as an attribute of physical action or movement.

Explanation:

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Joe is measuring the time it takes for a ball to roll down a ramp. In this experiment Joe takes the measurement 5 times and gets

PolarNik [594]

Step by step solution :

standard deviation is given by :

$\sigma = \sqrt\dfrac{{\sum (x-\bar{x})^2}}{n}$

where, $\sigma$ is standard deviation

$\bar{x}$ is mean of given data

n is number of observations

From the above data, $\bar{x}=24.88$

Now, if $x=24.8$ , then $(x-\bar{x})^2=0.0064$

If $x=23.9$ , then $(x-\bar{x})^2=0.9604$

if $x=26.1$ , then $(x-\bar{x})^2=1.4884$

If $x=25.1$ , then $(x-\bar{x})^2=0.0484$

If $x=24.5$ , then $(x-\bar{x})^2=0.1444$

so, $\sum (x-\bar{x})^2 =\frac{0.0064+0.9604+1.4884+0.0484+0.1444}{5}$

$\sum (x-\bar{x})^2 =2.648$

$\sqrt{\sum \frac{(x-\bar{x})^2}{n}}$

$\sigma =0.7277$

No, Joe's value does not agree with the accepted value of 25.9 seconds. This shows a lots of errors.

6 0

2 years ago

Juan whose weight is 500 N is standing on the ground. The force the ground exerts on

Anna71 [15]

Answer:

more than 500 n i think the answer will

8 0

2 years ago

Read 2 more answers

1. If the strength of the magnetic field at B is 3 units, the strength of the magnetic field at A is _____.

Ymorist [56]

<h3>Answer;</h3>

C. 12 units

<h3>Explanation;</h3>

If the strength of the magnetic field at B is 3 units, the strength of the magnetic field at A is 12 units
Magnetic field strength is one of two ways that the intensity of a magnetic field can be expressed.
The strength of the field is inversely proportional to the square of the distance from the source. This means that If the distance between two points in magnetic filed is doubled the magnetic force between them will fall to a quarter of the initial value.
On the other hand, if the distance between two magnets is halved the magnetic force between them will increase to four times the initial value.

6 0

2 years ago

A solid circular shaft and a tubular shaft, both with the same outer radius of c=co = 0.550 in , are being considered for a part

Norma-Jean [14]

Answer:

The power for circular shaft is 7.315 hp and tubular shaft is 6.667 hp

Explanation:

Polar moment of Inertia

$(I_p)s = \frac{\pi(0.55)4}2$