Which of the following is a benefit of physical activity?

Answer:

220N

Explanation:

Given that the first time has 4 girls

each girl pull at 250N, therefore the total force

250X4= 1000N

For the second team, the three girls out of the four pulls at 260N each,

let the fourth girl pulls at xN

the total force is 3X260+x

=780+x

we know that the total force on the west must equal the total force on the east

so

1000=780+x

solving for x we have

x=1000-780

x=220N

Therefore the fourth girl on the second team pulls at 220N

Answer:

A battery in a pair of headphons

Explanation:

Answer: A

Explanation:

Answer:

Air resistance is always in play so it always has air resitance no matter what.

Answer:

453.25 MJ

Explanation:

The formula to find kinetic energy is :

[tex]E_{k} = \frac{1}{2} X m X v^{2}[/tex]

E.k = ?

m = 0.56kg

v = 25mi./s which needs to be converted into metres per second

1mi./s= 1609.34m/s

25 mi./s = 40233.6 m/s.

E.k. = 0.5 × 0.56 × 40233.6²

e.k = 453247919.3J

E.k.= 453.25 MJ

Answer:

The answer is A if it was right give it the brainiest

Answer:

Explanation:

The x component of electric field Ex = k Q / R²

= 9 x 10⁹ x 5 x 10⁻⁹ / .5²

= 180 N .

The y component of electric field Ey = k Q / R²

The y component of electric field Ey

= 9 x 10⁹ x 5 x 10⁻⁹ / 1.5²

= 20 N

Total field = [tex]\sqrt{180^2+20^2}[/tex]

= 181.1 N .

Angle with x axis = Tanθ = Ey / Ex = 20 / 180 = .111

= 6.33⁰

Answer:if i know ill tell u

Explanation:

Answer:

Informed Consent- The study didn't conform this ethical standard.

Debriefing- The study conforms this ethical standard.

Confidentiality- The study conforms this ethical standard.

Protection from harm- The study conforms this ethical standard.

Explanation:

Informed consent is described as a procedure whereby researchers tend to provide details about specific research they are going to conduct, the risk & benefits involved in the study, different alternatives involved in the procedure, etc.

Debriefing is described as a process that is being conducted in any of the different psychological research encompassing human participants after specific research is completed. The researcher tends to describe the details of the research to the participants.

Confidentiality is described as one of the different code of ethics followed by health workers or psychologists. While practicing confidentiality, a psychologist tends to promise his or her participants that he or she will keep everything a secret whatever is being discussed or shared between both of them.

Protection from harm determines that the psychologists conducting research follows the ethics in which he or she has to protect all the participants from any kind of harm.

Answer:

I think its A

Explanation:

Answer:

waves change based on what they are traveling through

Explanation:

Answer:

20.1797 u

Explanation:

Answer:

Hey!

Your answer is that the ATOMIC MASS of Neon is 20.18 to 2 decimal places!

Explanation:

The other way is to round it to the next whole number, which is 20...

You can pick between the two as they are both correctly rounded!

The EXACT number is 20.1797.

Answer:

1.3s

Explanation:

Answer:

d

Explanation:

force of friction.

Answer:

0.0124 AU

Explanation:

Ganymede takes 7.15 Earth days to orbit Jupiter. Ganymede is measured to be 7.1 X 10⁻³ AU from Jupiter’s center.

We need to find how far away is Callisto from the center of Jupiter if a second moon of Jupiter, Callisto, takes 16.69 Earth days to orbit Jupiter. Let it is r₂. Using third law of Kepler.

[tex]T^2\propto r^3[/tex]

i.e.

[tex](\dfrac{T_1}{T_2})^2=(\dfrac{r_1}{r_2})^3\\\\\dfrac{r_1}{r_2}=(\dfrac{T_1}{T_2})^{2/3}\\\\r_2=\dfrac{r_1}{(\dfrac{T_1}{T_2})^{2/3}}\\\\r_2=\dfrac{7.1\times 10^{-3}}{(\dfrac{7.15}{16.69})^{2/3}}\\\\r_2=0.0124\ \text{AU}[/tex]

So, Callisto is 0.0124 AU from the center of the Jupiter.

Answer:

Explanation:

What???

Answer:

tension

Explanation:

its a feeling

Explanation:

sample of gold has a mass of 96.5 g and a volume of 5.00 cm3. The density of gold is a. 0518 g/cm3.

Taking into account the definition of density,  the density of gold is 19.3 [tex]\frac{g}{cm^{3} }[/tex]

But first you must know the definition of density. Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words,  density is the relationship between the weight (mass) of a substance and the volume that the same substance occupies.

The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

[tex]density=\frac{mass}{volume}[/tex]

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

In this case, you know that:

Replacing in the definition of density:

[tex]density=\frac{96.5 g}{5 cm^{3} }[/tex]

Solving:

density= 19.3 [tex]\frac{g}{cm^{3} }[/tex]

In summary, the density of gold is 19.3 [tex]\frac{g}{cm^{3} }[/tex]

Learn more about density:

Answer:

2,500 watts

Explanation:

I got this answer right on a test. I hope it works for you to.

Answer:

2500 wats

Explanation:

The two options would increase the electric force between two charged

particles is

E. decrease the distance between particles.

B. Increase the charge of one of the particles.

The attractive or repulsive interaction that lies between any two charged objects should be called as the electric force.

When the distance between the particles is decreased and the charge of one particles should be increased so it increased the electric force.

hence, option b and option e are correct.

Learn more about electric force here: https://brainly.com/question/17562167

Answer:

Scientific theories are explanations of some aspect of the natural world based on repeated observations.

Hope this helps!!!!

Answer:

The way that scientists use the word 'theory' is a little different than how it is commonly used in the lay public," said Jaime Tanner, a professor of biology at Marlboro College. "Most people use the word 'theory' to mean an idea or hunch that someone has, but in science the word 'theory' refers to the way that we interpret facts.

Explanation:

Answer:

Explanation:

Kinetic

Answer:

Dynamic Stretching

Explanation:

Dynamic Stretching: Dynamic stretches are controlled movements that prepare your muscles, ligaments and other soft tissues for performance and safety.

Answer:

No, they will not change.

Explanation:

Answer:

...

Explanation:

....

Answer:

2.26s

Explanation:

The time it takes for the egg to hit the ground can be calculated using the formula:

S = ut + 1/2at²

Where; S = distance of handball from ground (m)

t = time (s)

a = acceleration due to gravity (9.8m/s²)

u = initial velocity = 0m/s

Inserting our values into the formula, we have:

25 = (0 × t) + 1/2 (9.8 × t²)

25 = 0 + 9.8t²/2

25 = 9.8t²/2

25 × 2 = 9.8t²

50 = 9.8t²

t² = 50/9.8

t² = 5.102

t = √5.102

t = 2.258

t = 2.26s

Answer:

the correct answer is false

Answer:

6318 N

Explanation:

From the question given above, the following data were obtained:

Acceleration due to gravity of the moon (gₘ) = 1.62 m/s²

Mass (m) of container = 650 kg

Weight (W) of container on the earth =.?

Next, we shall determine the acceleration due to gravity of the earth. This can be obtained as follow:

Acceleration due to gravity of the moon (gₘ) = 1.62 m/s²

Acceleration due to gravity of the earth (gₑ) =.?

gₘ = 1/6 × gₑ

1.62 = 1/6 × gₑ

1.62 = gₑ /6

Cross multiply

gₑ = 1.62 × 6

gₑ = 9.72 m/s²

Finally, we shall determine the weight of the container on the earth as follow:

Mass (m) of container = 650 kg

Acceleration due to gravity of the earth (gₑ) = 9.72 m/s²

Weight (W) of container on the earth =.?

W = m × gₑ

W = 650 × 9.72

W = 6318 N

Therefore, the weight of the container on earth is 6318 N

Answer: Silicon is better

Hope it helps!!