Can anyone plz send me the solved questions this is Energy chapter ​

Answer:

V = 5.83 m/s

Explanation:

Given that,

Mass of a ball of a clay, m = 2 kg

Initial speed of the clay, u = 35 m/s

Mass of a box, m' = 10 kg

Initially, the box was at rest, u' = 0

We need to find the velocity of the box after the collision. Let V be the common speed. Using the conservation of momentum to find it.

[tex]mu+m'u'=(m+m')V\\\\V=\dfrac{mu+m'u'}{(m+m')}\\\\V=\dfrac{2\times 35+10\times 0}{2+10}\\\\V=5.83\ m/s[/tex]

So, the velocity of the box after the collision is equal to 5.83 m/s.

Answer:

One object has a large mass, and the objects are close together.

they are made up of rock and gas

Answer:

Hydrogen and Helium. 75% Hydrogen and 25% Helium.

Explanation:

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Answer:

Lightning is an electrical discharge caused by imbalances between storm clouds and the ground, or within the clouds themselves. Most lightning occurs within the clouds. ... This heat causes surrounding air to rapidly expand and vibrate, which creates the pealing thunder we hear a short time after seeing a lightning flash.

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Brainliest?

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Answer:

Lightning can be explained in terms of charges produced due to rubbing. During a thunderstorm, the air currents move upwards and the water droplets move downwards. And this caused due to the separation of charge due to this vigorous motion.

Explanation:

Answer:

True

Explanation:

Answer:

Space radiation is made up of three kinds of radiation: particles trapped in the Earth's magnetic field; particles shot into space during solar flares (solar particle events); and galactic cosmic rays, which are high-energy protons and heavy ions from outside our solar system.

Explanation:

Answer:

150 N= 15 or 150 N= 1.1

Explanation:

What I did was subtract 165kg and 150 N and I divided it too but I got 1.1 so yuhh

Answer:

True! UwU

Explanation:

the magnetic field is strongest near to the poles of the magnet were the lines of flux are more closely spaced.

Answer:

A.  Car #1 has 2-times the momentum as Car #2

Explanation:

Momentum is defined as the product of mass and velocity:

[tex]P = mv[/tex]

where,

P = Momentum

m = mass

v = velocity

FOR CAR # 1:

m = 1000 kg

v = 10 m/s

Threfore,

[tex]P_1 = (1000\ kg)(10\ m/s)\\P_1 = 10000\ N.s[/tex]

FOR CAR # 2:

m = 500 kg

v = 10 m/s

Threfore,

[tex]P_2 = (500\ kg)(10\ m/s)\\P_2 = 5000\ N.s[/tex]

Dividing both momentums:

[tex]\frac{P_1}{P_2} = \frac{10000\ N.s}{5000\ N.s}\\\\P_1 = 2P_2[/tex]

Therefore, the correct option is:

A.  Car #1 has 2-times the momentum as Car #2

Answer:

8.70 s

Explanation:

Given (in the y direction):

v₀ = 2.38 m/s

v = 0 m/s

a = 0.310 sin (-62.0°) m/s²

Find: t

v = at + v₀

0 m/s = (0.310 sin (-62.0°) m/s²) t + (2.38 m/s)

t = 8.70 s

Answer:

In a chemical reaction, an iron atom became the ion which means that iron atom by loosing two electrons from its valence shell has oxidized into positively charged ion

Explanation:

Answer: according to https://www.doe.virginia.gov When light strikes translucent materials, only some of the light passes through them. The light does not pass directly through the materials. ... Opaque objects block light from traveling through them. Most of the light is either reflected by the object or absorbed and converted to thermal energy.

Explanation:

Answer:

a region in which particles with an electric charge will experience a force

Explanation:

let me know if its wrong . sorry if it is

Answer:

D

Explanation:

If a rocket of mass 117 kg is launched with a velocity of 800 m/s, so, the height is 32000m.

Kinetic energy is defined as the energy possessed by an object due to its motion that can be transferred between objects and converted into other forms of energy. It can be expressed as:

[tex]K.E.= 1/2 mv^2[/tex]

For above given information,

m is the mass which is 117kg

v is the velocity which is 8000m/s

So,

K.E.= [tex]1/2 (117)* (8000)^2[/tex]= [tex]3.744*10^7[/tex] Joules

So, we assume kinetic energy is equal to gravitational potential energy

G.P.E.= mgh

where, g is the gravitational strength which is 10N/kg for Earth

So,

[tex]3.744*10^7= (117).(10). h\\h= 3.744*10^7/1170\\h= 32000m[/tex]

So, the  rocket of mass 117 kg is launched with a velocity of 800 m/s, so, the height is 32000m.

Learn more about Kinetic energy, here:

https://brainly.com/question/26472013

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Your question is incomplete, most probably the complete question is :

If a rocket of mass 117 kg is launched with a velocity of 800 m/s, how high does it rise?

Answer:

Refraction

Explanation:

Refraction is the change in direction of a wave as it slows down. ... Tsunamis also refract around land masses

Answer:

3 types of weathering are, physical, chemical and biological weathering.

Explanation:

Hope this helps and have a wonderful day!!!

Answer:

r = 0.0548 m

Explanation:

Given that,

Singly charged uranium-238 ions are accelerated through a potential difference of 2.20 kV and enter a uniform magnetic field of 1.90 T directed perpendicular to their velocities.

We need to find the radius of their circular path. The formula for the radius of path is given by :

[tex]r=\dfrac{1}{B}\sqrt{\dfrac{2mV}{q}}[/tex]

m is mass of Singly charged uranium-238 ion, [tex]m=3.95\times 10^{-25}\ kg[/tex]

q is charge

So,

[tex]r=\dfrac{1}{1.9}\times \sqrt{\dfrac{2\times 3.95\times 10^{-25}\times 2.2\times 10^3}{1.6\times 10^{-19}}}\\\\r=0.0548\ m[/tex]

So, the radius of their circular path is equal to 0.0548 m.

Answer:

his average velocity is

[tex]v = \frac{19300}{1380} = 13.9855(m \div s)[/tex]

Answer:

Part A

Coriolis effect is used to describe how objects which are not fixed to the ground are deflected as they travel over long distances due to the rotation of the Earth relative to the 'linear' motion of the objects

Due to the Coriolis effect the wind flowing towards the Equator from high pressure belts in the subtropical regions in both the Northern and Southern Hemispheres are deflected towards the western direction because the Earth rotates on its axis towards the east

Part B

In the Northern Hemispheres, the winds are known as northeasterly trade winds and in the Southern Hemisphere, they are known as the southeasterly trade wind. Therefore, Coriolis effect has the same effect on the direction of the Trade Winds in the Southern Hemisphere as it does in the Northern Hemisphere

Explanation:

Answer:

D. It is easy to copy.

Explanation:

It is not B, or A, nor C.

Answer:D

Explanation:

Answer:

Yes

Explanation:

An object can be moving (have kinetic energy) and be elevated above the ground at the same time (and also have potential energy).

Yes an object can be moving have kinetic energy and be elevated above the ground at the same time and also have potential energy.

Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form.

The energy an object has as a result of motion is known as kinetic energy. A force must be applied to an object in order to accelerate it. We must put in effort in order to apply a force. Following work, energy is transmitted to the item, which causes it to move at a new, constant speed. An object can store energy as the result of its position is potential energy.

An object can be moving have kinetic energy and be elevated above the ground at the same time and also have potential energy.

To learn more about energy refer to the link:

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Answer:

uaa,uag,uga

Explanation:

Answer:

mass kg velocity m/s kinetic energy j

Answer:

well i guess i can try...

Explanation:

Volcanoes are a dangerous natural occurance that can greatly effect any ecosystems. There are various effects of volcanoes such as, lava flows, volcanic landslides, mud-flows, and ash flows, which generally result in total obliteration of any ecosystem in their path, they can also have long term beneficial effects to the environment.  One of these long term effects are, the creation of some of the most nutrisous, and fertile soil on earth, causing healthy plants to grow.

Answer:

I think B is the answer

Explanation:

I think this cause a maid always cleans the house and might be awake at night

Answer:

Depends.

Explanation:

Whether the object is going left or right, the speed will stay the same until friction eventually stops it. However, if, for example, we're talking about an object going straight before veering right, then yes, speed does matter. An object will normally have to speed up or slow down momentarily when changing direction to keep itself sustained on the ground.

So, honestly? It really depends on what we're talking about!

Hope this helped!

Source(s) used: None.

Answer: 1.0

Explanation:

not sure why but that is the correct answer

Answer:

1.0

Explanation:

Correct answer on Khan Academy