Please answer these questions, its for a physics assignment

Answer:

If you look at the night sky different times of the year you see different constellations. This change is due to the motion of the Earth in its orbit around the Sun. Each day a few stars are visible in the east that were not visible the night before.

Answer:

east to west

Explanation:

Answer:

One atom will give electrons to another atom to fill its shell, this is an ionic bond. The atom giving away electrons becomes positive and the one recieving electrons becomes negative.

Explanation:

Answer: One atom will give electrons to another atom to fill its shell, this is an ionic bond. The atom giving away electrons becomes positive, and the one receiving electron becomes negative.

Explanation:

I did the Gizmo.

Answer:

C

Explanation:

add them all up

SIX           C

TWELVE  H

SIX            O

total = 24

Answer:

The angular velocity of the propeller is 2.22 rad/s.

Explanation:

The angular velocity (ω) of the propeller is:  

[tex] \omega = \frac{\Delta \theta}{\Delta t} [/tex]                              

Where:

θ: is the angular displacement = 10.6 revolutions

t: is the time = 30 s

[tex] \omega = \frac{\Delta \theta}{\Delta t} = \frac{10.6 rev*\frac{2\pi rad}{1 rev}}{30 s} = 2.22 rad/s [/tex]

Therefore, the angular velocity of the propeller is 2.22 rad/s.

I hope it helps you!

Given:

Angular displacement,

Diameter,

Time,

Now,

The angular velocity will be:

→ [tex]\omega = \frac{\Delta \Theta}{\Delta t}[/tex]

By putting the values, we get

       [tex]= \frac{10.6\times \frac{2 \pi rad}{1 \ rev} }{30 \ s}[/tex]

       [tex]= 2.22 \ rad/s[/tex]

Thus the response above is right.

Learn more about velocity here:

https://brainly.com/question/14370151

Answer:

Q

Explanation:

To know which symbol defines the wavelength, we must know the definition of wavelength.

Wavelength can be defined as the distance between two successive crests (i.e the highest part) or troughs (the lowest part) of a wave.

Considering the diagram given above, Q shows the distance between two successive crests (i.e the highest part) of the wave. Therefore, Q is the wavelength of the wave given in the diagram above.

Answer: The executive board of the International Olympic Committee voted yesterday to allow professional tennis, ice hockey and soccer players under the age of 23 to compete in the 1988 Winter and Summer Games.

Answer:

[tex]part \: \to a \: \\ \boxed{\gamma = 1.17 { \times 10}^{ - 6} \: m}

\\ \\ part \to\: b \\ \boxed{the \: ans = 355,102,030.67 \: or \: 3.55 { \times 10}^{8} \: times}[/tex]

Explanation:

[tex]\boxed{part \: a.} \\ let \: the \: radio \: wave \: length \: be \to \gamma _{r} \: \\ given \to \: v = f \gamma _{r} \: \\ the \: wave \: length \: \boxed{\gamma _{r} } \: is \to \: \frac{v}{f} \\ \gamma _{r} = \frac{v}{f} = \frac{350}{3 { \times 10}^{8} } = 1.1666667 { \times 10}^{ - 6} \\ \boxed{\gamma _{r} = 1.17 { \times 10}^{ - 6} \: m} \\ \\ \boxed{part \: b.}\\ let \: the \: water \: wave \: length \: be \to \gamma _{w} \: \\ to \: answer \: the \: second \: question : \\ first \: we \: find \: the\: frequency \: of \: the \\ \: water \: wave \to \\ \: if \: \to \: v = f\gamma _{w} \\ f = \frac{v}{ \gamma _{w}} \\ but \:\gamma _{w} \: is \: 1\% \: of \: \gamma _{r} \\ \gamma _{w} = \frac{1}{100} \times 1.1666667 { \times 10}^{ - 6} \\ \gamma _{w} = \underline{ 1.1666667 { \times 10}^{ - 8}}m \\ hence \to \\ f_{w} = \frac{v}{ \gamma _{r}} = \frac{1450}{1.1666667 { \times 10}^{ - 8}} \\ = \boxed{part \: a.} \\ let \: the \: radio \: wave \: length \: be \to \gamma _{r} \: \\ given \to \: v = f \gamma _{r} \: \\ the \: wave \: length \: \boxed{\gamma _{r} } \: is \to \: \frac{v}{f} \\ \gamma _{r} = \frac{v}{f} = \frac{350}{3 { \times 10}^{8} } = 1.1666667 { \times 10}^{ - 6} \\ \boxed{\gamma _{r} = 1.17 { \times 10}^{ - 6} \: m} \\ \\ \boxed{part \: b.}\\ let \: the \: water \: wave \: length \: be \to \gamma _{w} \: \\ to \: answer \: the \: second \: question : \\ first \: we \: find \: the\: frequency \: of \: the \\ \: water \: wave \to \\ \: if \: \to \: v = f\gamma _{w} \\ f = \frac{v}{ \gamma _{w}} \\ but \:\gamma _{w} \: is \: 1\% \: of \: \gamma _{r} \\ \gamma _{w} = \frac{1}{100} \times 1.1666667 { \times 10}^{ - 6} \\ \gamma _{w} = \underline{ 1.1666667 { \times 10}^{ - 8}}m \\ hence \to \\ f_{w} = \frac{v}{ \gamma _{r}} = \frac{1450}{1.1666667 { \times 10}^{ - 8}} \\ \boxed{f_{w} = 124,285,710,735} \\now \: thier \: frequency \: ratio \: is \to \\ \frac{f_{w}}{f_{r}} = \frac{124,285,710,735}{350} = 355,102,030.67 \\ \boxed{the \: ans = 355,102,030.67 \: or \: 3.55 { \times 10}^{8} \: times}[/tex]

Your answer would be Device A.

Answer:

Device A because it would use more voltage :D

Explanation:

Answer:

biosphere

Explanation:

pretty sure bc it is ground

Answer:

0.14 kg

Explanation:

m=F/a = (1.4N/9.8 m/s/s) =0.14 kg

Answer:

1080 m

Explanation:

Divide 5400 over 5.0

Answer:

C. Do bubbles form when the element is mixed with an acid?

Explanation:

all the other options are incorrect because they are

"Does a magnet attract the element?" is the question that can be used to identify a physical property of an element, because the magnetic behavior of any material is purely a physical property of that material.

Therefore, the correct answer is option A.

A magnetic field could be understood as an area around a magnet, magnetic material, or an electric charge in which magnetic force is exerted.

Since the magnetic behavior of any substance is solely a physical feature of that material, the question "Does a magnet attract the element?" can be used to determine a physical attribute of an element.

Thus, the correct answer is option A.

Learn more about the magnetic fields from here, refer to the link;

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I'm going to assume that this gripping drama takes place on planet Earth, where the acceleration of gravity is 9.8 m/s².  The solutions would be completely different if the same scenario were to play out in other places.

A ball is thrown upward with a speed of 40 m/s.  Gravity decreases its upward speed (increases its downward speed) by 9.8 m/s every second.

So, the ball reaches its highest point after (40 m/s)/(9.8 m/s²) = 4.08 seconds. At that point, it runs out of upward gas, and begins falling.

Just like so many other aspects of life, the downward fall is an exact "mirror image" of the upward trip.  After another 4.08 seconds, the ball has returned to the height of the hand which flung it.  In total, the ball is in the air for 8.16 seconds up and down.

Answer:

0.678m

Explanation:

Find: Δx

Δx = ½ (v + v₀) t

Δx = ½ (4.127 m/s + 2.179 m/s) (0.215 s)

Δx = 0.678 m

Answer:

maximum height reach by rockect =970.2metre

Explanation:

Answer:

I think it's 10 minutes per km

Answer:

1.4 meters per second (5.0 km/h, 3.1 mph, 4.6ft/s

Answer:

Newton's First Law of Motion applies here.

Explanation:

Before crashing into the fence, Amy was moving at a certain speed on her bike. As, she crashed her bike into the fence, the collision stopped the bike suddenly. But, Amy had the same speed due to inertia of her body. Due tot  his speed Amy did not stop and she was thrown over the fence onto the lawn. So, the force of inertia of Amy's body caused her to be overthrown in this case. We study about inertia in Newton's First Law of Motion, which is also known as Law of Inertia.

Newton's First Law of Motion applies here.

Answer:

I believe its rectus femoris

Explanation:

The rectus femoris is one of the quadriceps muscles. The rectus femoris arises from the front of your hipbone, runs through the middle region of the front thigh and attaches to the top of the kneecap. In addition to hip flexion, the rectus femoris straightens, or extends, your knee.

Answer:

Explanation:

The distance covered by an object given it's velocity and time taken can be found by using the formula

distance = velocity × time

From the question we have

distance = 1.5 × 120

We have the final answer as

Hope this helps you

Answer:

180 meters

Explanation:

1.5 m/s x 120 s

The idea that women's liberation is also men's liberation arouses the awakening of feminism. In 1966 Frieden and other feminists founded the National Organization for Women. Then other women's organizations for equal rights were formed in the United States and Western Europe. These organizations sought to overturn discriminatory laws and practices that forced women to hold down their status, such as discrimination in matters of contract and property ownership, employment and wages, the treatment of wage income, and issues relating to sex and child-bearing. The growing feminist movement more broadly seeks to change social stereotypes that women are more vulnerable, passive and dependent, less rational and emotionally reactive than men. Feminism strives for greater freedom for women in the workplace and makes them financially and psychologically independent of men, if they wish. Feminists criticized society's general emphasis on women as objects of sexual desire and sought to raise women's awareness and expand their opportunities in order to achieve equality with men. Another objective of feminism is to promote women's participation in all areas of political decision-making and social life.

Pretty long so read if you will:

I'm pretty late to this but oh well. Well to start why are people homophobic in the first place? You might not understand as well but that is because me and you are growing up at a time and place where people are encouraged to be themselves and we're embracing people that are different than what is considered normal. Gay marriage was legalized literally in the US in 2015, 5 years ago. I come from Malaysia, one of the few countries where it's illegal to be gay and can cause a death penalty from what I've seen. Obviously I grew up in a place where gay and whatnot were a joke and is wrong. But we moved and I came to the US and my beliefs changes, it also helped that I was literally only 11 so I was more easier to change than adults. Majority of the world honestly, are not as open to the lgbtq+ community as a person in America might think. The belief that it's only a women and men probably stems from the fact that it's how u make babies. And if we know anything, society doesn't like things that are different. To stop people being homophobic you have to stop people from spreading the belief that it's wrong to be gay or bi. This is going to be hard and people really overestimate the world when it comes to change. Peoples belief won't be changed so quick just, change doesn't happen quick. It's going to be a long time and maybe even never, look at racism. We all exist together for so long but there's still racism though much less compared to back then. As long as people stop teaching that next generation, us, that being lgbtq+ is bad, it will decrease but it will take a long time. And as much as I agree we need it to be now, it won't and trying to force something will only cause more backlash. Just try to inform the people around you and understand change does not happen fast, it's slow, especially if it you want it to be permanent.

Answer:

B

Explanation: you are staying longr to jump 3 meters than one meter

Answer:

Issa Mixture.

A salt is a compound. ... Na exists in sodium compounds and Cl as Cl2 or chlorinated compounds. A common example would be table salt where both exist( Sodium Chloride). Sodium Chloride solution consisting of NaCl and water is a mixture. An example would be sea water which consists of several salts. Ur welcome.

Explanation: and

The salt is the solute; water is the solvent. Mixed together they become a solution.

Initial velocity of projection (u) = 20 m/s

Angle of projection (θ) = 30°

Formula of Horizontal Range of Projectile:

[tex] \boxed{ \bf{R = \dfrac{2u^2 sin\theta .cos \theta}{g}}}[/tex]

By substituting values in the formula, we get:

[tex] \rm \longrightarrow R = \dfrac{2 \times 20^2 \times sin30 \degree \times cos 30 \degree}{10} \\ \\ \rm \longrightarrow R = \dfrac{ \cancel{2} \times 40 \cancel{0} \times \dfrac{ \sqrt{3} }{ 2} \times \dfrac{1}{\cancel{2}} }{ \cancel{10}} \\ \\ \rm \longrightarrow R =40 \times \dfrac{ \sqrt{3} }{ 2} \\ \\ \rm \longrightarrow R =20 \sqrt{3} \: m \\ \\ \rm \longrightarrow R =34.641 \: m[/tex]

[tex] \therefore [/tex] Horizontal Range of Projectile (R) = 34.641 m

Answer:

[tex]a=242.62\ m/s^2[/tex]

Explanation:

The rocket-powered sled is accelerated to a speed of 444 m/s in 1.83 seconds.

We need to find the acceleration of the rocket. Initially it was at rest, u = 0

Acceleration = rate of change of velocity

[tex]a=\dfrac{444\ m/s}{1.83\ s}\\\\a=242.62\ m/s^2[/tex]

So, the acceleration of the rocket is [tex]242.62\ m/s^2[/tex].

Answer:

There are many different systems involved in when we exercise, the three main ones are the Respiratory system which is involved in breathing the circulatory system which is about circulation of blood around the body and finally the muscular system and finally the Muscular system which is about how we move.

Explanation:

If the data consistently do not support the hypothesis, then CLEARLY, the hypothesis is NOT a reasonable explanation of what you are investigating. The hypothesis is rejected, and we search for a new interpretation, an new hypothesis that supports the experimental data

Respiratory and circulatory systems are the two systems within the human body that work together during exercise.

The respiratory system:

The circulatory system:

During exercise:

To learn more about respiratory system, circulatory system, blood, exercise, and oxygen here,

https://brainly.com/question/13128077

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