1. Suppose that a log is burning in a fireplace. The log contains chemical energy. Light,
heat, and some sound are given off as the log burns. How does this demonstrate the
law of conservation of energy?
A.
B.
The total amount of energy in the universe changes.
Energy is destroyed.
Energy is created.
Energy is converted from one form to another.
C.
D.

Answers

Answer 1

Answer:

energy is converted in one form to another

Explanation:

please give brainlest need 3 more


Related Questions


A meterologist made these observations one day:
• In the morning, anocean wave hit a shoreline every 15 seconds.
• In the afternoon, an ocean wave hit the shorlinie every 30 seconds.
Identify whether the ocean waves transferred more or less energy in the morning than in the afternoon.
Write your answer in complete sentences.

Answers

Answer:

They transfered more energy in the morning.

Explanation:

This is because, let me put this in simple words, you have more energy, you can run more laps around the track, right? This is the same with  the waves. They have more energy, so they can crash aganst the shore more!

How far will a force of 6 x 10^3N stretch a spring with spring constant 3 x 10^4 Nm-1 ?

Answers

Answer:

0.2m

Explanation:

F = 6 x 10^3N

k = 3 x 10^4 Nm-1

x = ?

from Hooke's law, F = kx

x = F/k = 6 x 10^3 ÷ 3 x 10^4 = 0.2m

pleaaaaaaaaaaaaaaase help me vvvvvvvvvvvvvvv
Which one, mass or weight, would change if you were to travel to another planet or moon?

Answers

Answer:

The answer is weight.

Mass is constant, your mass, height and width won’t change. So that leaves weight.

HELP!!! I need to turn this in quickly :((

Answers

F = 6.0 x 10⁻⁸ N

Further explanation

Given

mass of 2 dump trucks = 1500 kg

distance = 50 m

Required

Gravitational force

Solution

Newton's Gravity Law:  

[tex]\rm F=G.\dfrac{m_1.m_2}{r^2}[/tex]

with F = gravitational force,  

G = gravitational constant,  

m1, m2 = mass of object,  

r = distance between two objects.  

Input the value :

F = (6.67.10⁻¹¹N.m² / kg² x 1500²) :  50²

F = 6.0 x 10⁻⁸ N

Which is considered a dark green vegetable?
A.
Carrots
B.
Broccoli
C.
Squash
D.
Green peas

Answers

Answer:

Broccoli

Explanation:

Answer:

b. broccoli

Explanation:

took the quiz

hope this helps

What is the velocity of a wave with a frequency of 300 Hz and a wavelength of 0.45 m?

Answers

Answer:

velocity= 135m/s

Explanation:

velocity = 300×0.45

= 135m/s²

360 m/s :because the main properties include wavelength, amplitude, crest and trough.

How are reversibility, time, and entropy connected

Answers

Answer:

As one goes "forward" in time, the second law of thermodynamics says, the entropy of an isolated system can increase, but not decrease. ... Thus, entropy measurement is a way of distinguishing the past from the future.

Explanation:

Determined by the Direction and Position of the electron's movement within its sublevel
A)Energy levels
B)Sublevels
C)Orbitals
D)Valances​

Answers

C orbitals
I am sure this is right, try it out

An eagle flying 10 meters per second swoops down to the ground to catch a snake speed velocity or acceleration

Answers

Answer:

Velocity because it has both magnitude (10m/s) and direction (to the ground).

Explanation:

Velocity can be defined as the rate of change in displacement (distance) with time. Velocity is a vector quantity and as such it has both magnitude and direction.

Mathematically, velocity is given by the equation;

[tex]Velocity = \frac{distance}{time}[/tex]

In this scenario, an eagle flying 10 meters per second swoops down to the ground to catch a snake. Therefore, this is an example of velocity.

Which of these materials would result in horizontally polarized light?
OA.
O B.
OC.
OD.
OE.
reflection from a tall aluminum pole
refraction from a glass sheet
reflection from an iron shed
reflection from wet asphalt
refraction from a water surface

Answers

I think it is D but I am sure.

when you do work on an object you transfer,

Answers

where you supposed to finish it?
what? this doesn’t make sense

Example of kinetic to thermal? And explain how the energy is changing forms? Please help

Answers

Answer:

Indeed

Explanation:

Answer:

A roller coaster that is running heating up the rails

Explanation:

the enery is changing forms due to friction and cunduction

C is correct just an FYI

Answers

Answer:

Huh?

Explanation:

A 3kg ball has an initial velocity of 6m/s. How much energy will be transformed into Gravitational
Energy?

Answers

I think 54 J of gravitational ernegy
Since
Ek = Eg

You push on 35 N object for 3 seconds. Find work.​

Answers

Sorry I don’t know the answer
Is it more to the Question

which term describes when a substance is changed from a liquid to a gas

Answers

Answer:

vasporisation

Explanation:

process used to change liquid to gass

Answer:

I believe it's Evaportation or another word would be Vaporisation.

Explanation:

hope this helps! ^^

what is the formula for acceleration?

Answers

Answer:

Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude and direction.

Explanation:

What is the unit for molar mass?

Answers

Answer:

kilogram per mole

Explanation:

ffdddddfsds

Answer: g/mol

Explanation:

Is chochlate milk a element

Answers

Answer:

no

Explanation:

it's a graph

Answer:

It specifically is not a element but it has plenty of elements in it

Explanation:

what is the standard unit of velocity

Answers

Answer:

Explanation:

Meters per second

Answer:

m/s (meters per second)

Explanation:

The smallest particle of an element; made of electrons, protons, and neutrons

Answers

Answer:

atom

Explanation:

Radio telescopes are said to "listen" to space because...
1. they monitor sound waves
2. they detect radio waves
3. they detect electromagnetic waves
4. they detect only aural EM waves​

Answers

Answer:

2 they detect radio waves

Ranjana has average velocity 3.2 m/s
How long does she take to cover a displacement
of 256 m

Answers

Answer:

t= 80 seonds

Explanation:

Given that,

The average velocity of Ranjana, v = 3.2 m/s

We need to find how long does she take to cover a displacement  of 256 m. Let she takes t time.

We know that,

Average speed = distance/time

So,

[tex]t=\dfrac{d}{v}\\\\t=\dfrac{256\ m}{3.2\ m/s}\\\\t=80\ s[/tex]

So, she will take 80 seconds to cover a displacement of 256 m.

out of solid and liquid in which the effect of gravity is more​

Answers

Answer:

Liquid

Explanation:

Thw answer is liquid

Gravity affects liquids more because without a container it’s more likely to fall

[WASSCE June 2008 Qu 11]
[
A force of 20 N acts at an angle of 30° to the
horizontal. Determine the vertical component
of the force.
A. 17.30 N
B. 11.50 N
C. 10.00 N
D. 7.50 N
[WASSCE Nov 2008 Qu 11​

Answers

α=30°

F=20 N

Fh=F*cos(α)

Fv=F*cos(90-α)=F*sin(α) (vertical component of the force F)

Fv=20*0,5=10.00 N

Answer (C)

what is magnetic field right and left hand rule​

Answers

Answer:

The Right Hand Rule, illustrated at left, simply shows how a current-carrying wire generates a magnetic field. ... The Left Hand Rule shows what happens when an electrical current enters a magnetic field. You need to contort your hand in an unnatural position for this rule, illustrated below

If you pour hot soup into a bowl, and the bowl stays cool to the touch, you can assume that...

Answers

Answer:

The soup still is cool, or since its recent it will take a while to get warmer

Explanation:

Can y’all help me pleaseeee

Answers

it would still be 5
the answer is five, hope you have a good one!

NEED THIS DONE ASAP HELP

Answers

Answer: Exercise Physiology

Explanation:

A train moves at 300 km/h. How far will it go in 5 hours?

Answers

Answer:

1,500 km

Explanation:

300 km/h

300 kilometers PER HOUR

So you want to see how far it will go in 5 hours, all you need to do is multiply the kilometers by 5. Since we know that per hour it's 300 km.

300 * 5 = 1,500

The train moves at 1,500 km in 5 hours.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

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