PHYSICS MIDDLE SCHOOL

How far could you speed walk in 10 minutes based on your speed for the 10 meter trial

Answers

Answer 1

Answer:

Answer:

0.0166 m/s

Explanation:

time taken, t = 10 min = 10 x 60 = 600 second

distance, d = 10 m

Speed of an object is defined as the ratio of distance traveled to the time taken by the object.

Speed = distance / time

its SI unit is m/s and it is a scalar quantity.

So, the speed is given by

$Speed = (Distance)/(Time)=(10)/(600)=0.0166 m/s$

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How are electromagnets made and how do they work?

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When an electric current flows in a wire, it creates a magnetic field around the wire. This effect can be used to make an electromagnet. A simple electromagnet comprises a length of wire turned into a coil and connected to a battery or power supply.

Which wave causes the medium to vibrate only in a direction parallel to the wave's motion?

Answers

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Which of these is NOT a stellar property? age, size, mass, or fission?

Answers

I think its Fission but I'm not for sure, I'm not really good with Physics... if i get the answer wrong then I'm sorry.

need help with the ones that have numbers on the sides.#1 #2 #3 #4 please help.i will pick fair brainliest answer

Answers

1. Some stars are bigger than others, some are different colors or temperatures. It all really depends on the age of the star.

2. Four differences could be:

1) Outer planets are much farther away from the sun, so they get less sunlight than inner planets.
2) Also, the outer planets are all gas giants (excluding Pluto), while inner planets are all rocky planets.
3) Inner planets also have a much higher density than outer planets.
4) Outer planets also tend to have many more moons than inner planets (such as Jupiter, with 63 known moons).

3. The barrier that separates the inner from the outer planets is a ring of space rocks known as the Asteroid Belt.

A comet is a ball of ice that orbits a star in a wide elliptical orbit.
An asteroid is a large rocky body that orbits a star, and could be anywhere in size from 600 miles across to tiny dust particles.
A meteoroid is a small object floating through space freely (not necessarily bound in any orbit) that is usually made of a rocky or metallic material.

4. Day and night are caused by the earth's rotation on its axis. Night is relative to the observer, and occurs when the observer is on the side opposite that on which the sun is shining.

Hope that helped =)

1.Difrences are color,size and the amount of light it gives off 2. 1.inner planets are warmer 2.inner planets are closer to the sun 3.Outer planets are balls of gass 4.outer planets bigger 3.an astroid belt A comet is a tail of gas and dust particles An asteroid is a large rock A meteoroid is lumps of rocks that orbit the sun 4.The rotation of the earth on its axis

What makes the planets gravity?

Answers

The presence of mass makes gravity. Doesn't matter whether it's a planet, a black hole, a puppy, or a speck of dust.

If a car can go from 0 to 60 mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50 mi/hr?

Answers

$a= (V)/(t) \ \ \ \Rightarrow\ \ a= (60\ [mi/hr])/(8\ [s]) \n \nthe\ final\ speed\ after\ 5.0\ seconds\n \nV=50\ [mi/hr]+5\ [s]\ \cdot (60\ [mi/hr])/(8\ [s])=50\ [mi/hr] + (5)/(8) \cdot 60\ [mi/hr]=\n \n=50\ [mi/hr]+37.5\ [mi/hr]=87.5\ [mi/hr]$

$v_1=60\ (mi)/(h)\n\nt_1=8.0\ s=(8)/(3600)\ h=(1)/(450)\ h\n--------------\na=(v)/(t)\n\na=(60)/((1)/(450))\ (mi)/(h^2)=27000\ (mi)/(h^2)\n--------------\nv_o=50\ (mi)/(h)\n\nt=5.0\ s=(5)/(3600)\ h=(1)/(720)\ h\n--------------$

$v=v_o+at\n\n\nv=50\ (mi)/(h)+27000\ (mi)/(h^2)\cdot(1)/(720)\ h=50\ (mi)/(h)+37.5\ (mi)/(h)=87.5\ (mi)/(h)\leftarrow Answer$

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