Answers
Answer:
..
Charcoal is flammable.
Related Questions
Question 4
1 pts
What is the mass of a rock sitting on a 10 meters high cliff if it has a potential energy of 500
joules?
50 kg
10 kg
5 kg
1000 kg
Answers
Answer:
it's answer is 5 kg
hope it helps youAnswer:
5kg is your answer
I hope it helps mate
I will always help you understanding your assingments
have a great day
I am bored
#Captainpower:)
According to the law of conservation of energy, mechanical energy can be changed to heat energy.
Answers
Answer:
The answer to this question is given below in this explanation section.
Explanation:
" law of conservation of energy"
The law of conservation of energy states that energy can neither be created nor destroyed only converted from one form of energy into another.This mean that a system always has a same account of a energy,unless it is added from the outside.This is particularly confusing in the case of non conversation forces,where energy is converted from ,mechanical energy into thermal energy.but the overall energy does remain the same.The only way to use energy is to transform energy from one form to another.
The amount of energy in any system than it is determined by the following equation.
Ut=Ui +W+Q
Ut is the total internal energy of a system.Ui is the initial internal energy of a system.W is the work done by or on the system.Q is the heat added to or removed by the system.It is also possible to determined the change in internal energy of the system using the equation.
ΔU=W+Q
The mechanical energy of a system increases provided their is no loss of energy due to friction.The energy would transform to kinetic energy when the speed is increasing.Te mechanical energy of a system remain constant provided their is no loss of energy due to friction.
The law of conversation of energy which say that in a closed system total energy is conserved that is it constant.
KE1 + PE1=KE2+PE2
Joey wrapped a wire around an iron bolt then connected the ends of the wire to a battery forming a complete circuit. What must have occurred as a result?
(A) The energy in the circuit was lost.
(B) The bolt was magnetized.
(C) The bolt started spinning.
(D) Nothing happened because there was no device.
Answers
Answer:
(B) The bolt was magnetized.
Explanation:
(B) The bolt was magnetized.
How much water is displaced by a solid object with a volume of 9 cm3 that is completely submerged in the water?
Answers
Given :
An object with a volume of 9 cm³ is completely submerged in the water.
To Find :
How much water is displaced by the object.
Solution :
According to Archimedes' principle, the amount of volume displaced of fluid when an object is fully and partially submerged into that is equal to the volume of the object below the surface of liquid.
Now, it is given that object is fully submerged into water.
Therefore, volume of water displaced by the object is 9 cm³.
friction that resists the motion between two objects that are not moving
Answers
Answer:
static friction is the friction that resists the motion between two objects that are not moving
PLZZZ HELP
In addition to how much force Earth exerts on the object, which features of an object affect its weight?
A.mass and location of the object
B.shape and location of the object
C.location of the object and how much energy the object has
D.mass of the object and how much energy the object has
Answers
Answer/Explanation:
The weight of an object is defined as the force that is exerted due to the gravitational force.
Mathematically, it can be written as :
W = m g
Where
m is the mass of the object
g is the acceleration due to gravity
Also,
We know that the value of g varies with respect to the location. At the equator, the value of g is less as compared to the poles.
The feature of an object that affects its weight are :
Mass of the object
Location of the object
How much force Earth exerts on the object
What is one of the forms of a gene called?
allele
dominant
heterozygous
recessive
Answers
Answer:
Explanation:
.
Answer:
alleles
my answee need to be at least 20 characters long :(
1 What conclusion can you draw about semicircular canals from their name ? A Their shape B Their size Their location in your body D Their function Their function
Answers
Answer:
A. Their shape
Explanation:
The name clearly shows that the shape of these canals are semi-circular. The semi-circular canals consist of three tubes filled with fluid and located in the inner ear. They help to maintain balance and transmit impulses through the movement of the fluids. The impulses sent through these fluids are sent to the brain for interpretation.
The function of the canals are not indicated by the name, rather the shape is hinted through the name.
Intact fossils are usually found in sedimentary rock, not metamorphic rock. Based on the information in the diagram, what is the reason for this phenomenon?
Answers
Explanation:
The reason for this phenomenon is the due to the condition by which each type of rocks form.
A sedimentary rock is formed by the compaction and lithification of sediments within a basin.
A metamorphic rock forms under high temperature and pressure conditions which alters the minerology of a rock.
Based on these conditions, the metamorphic rock cannot host any fossil. Any relics of fossils would be destroyed at such elevated pressure and temperature conditions. This is not so in a sedimentary rock because the conditions are similar to that which can preserve organic matter.Answer:
The heat and pressure of metamorphism would deform the fossil, and the process of melting would destroy the fossil completely.
Explanation:
PLATO
Please help me I’ll mark brainliest
Answers
Who would like to be my girlfiend ?
Answers
nobody this is a app to help others
Answer:
I bet my great grandmother would
Why is a protective apron or lab coat important to use when working with acids?
Acids conduct electricity and contact could cause a shock.
Acids react with lipids and can cause damage to skin tissue.
Acids break down fabrics and can cause burns if the acids are strong.
Acids have a slippery feel and could result in a fall.
Answers
Answer:
Acids break down fabrics and can cause burns if the acids are strong.
Explanation:
When working with acids, it is advisable for a scientist for wear a protective apron or lab coat because acids break down fabrics and can cause burns.
Acids are chemical substances that produces excess hydroxonium ions in solutions.
Due to their unique properties they are highly corrosive and are used to remove rusts from any surface. We they come in contact with the human body, they can cause severe burns especially if they are very strong acid. If an apron is worn, then the body will be shielded.Answer:
C. Acids break down fabrics and can cause burns if the acids are strong.
Explanation:
i did the quiz on edg
What is used to turn the pointer of a galvanometer?
a.
a crank
b.
an electric current
c.
a bar magnet
d.
a battery
Answers
Answer:
b. an electric current is used to turn the pointer of a galvanometer
Explanation:
well , galvanometer is an important device which is used to detect an electric current through a conductor or circuit.
something special about it is that it can detect very minute current too
Answer:
b
Explanation:
Question 3 of 10
Which law is stated below?
The acceleration of an object is proportional to the force applied to it and
inversely proportional to its mass.
A. The law of inertia
B. Newton's first law
C. Newton's third law
D. Newton's second law
Answers
Answer:
D. Newton's second law
Explanation:
Newton's second law of motion states that force of an object is a product of its mass and its acceleration.
Mathematically, F= ma where m is mass and a is acceleration
So from the statement above : The acceleration of an object is proportional to the force applied to it and inversely proportional to its mass , it can be seen from the formula variation as;
F= ma -----making a the subject of the formula
a= F/ m
a= 1/m * F --------- a is inversely related to m as you can see from 1/m but directly related to F hence;
Increase in mass with the same force applied causes the body to accelerate slower where as when force increases, the body accelerates faster.
which describes a function of the thalamus?
Answers
Answer: The primary function of the thalamus is to relay motor and sensory signals to cerebral cortex It also regulates sleep, alertness, and wakefulness.
Explanation:
The primary function of the thalamus is to relay motor and sensory signals to cerebral cortex It also regulates sleep, alertness, and wakefulness.
Which of the following statements about infrared telescopes is NOT true?
a. They are typically operated at lower temperatures.
b. They are especially helpful for viewing cool or obscured astronomical objects.
c. They were first built in the 1960s.
d. They are often placed on mountaintops.
e. They do not work well at high altitudes.
Answers
Answer:
a. They are typically operated at lower temperatures.
a. They are typically operated at lower temperatures.b. They are especially helpful for viewing cool or obscured astronomical objects.
What is the Sl unit for momentum?
O kg• m
O kg
O kg• m
O kg
2
m
Answers
Explanation:
The S. I. unit of momentum is Kg. m/sechope it helps you
20
Select the correct answer.
Which of these factors will increase the speed of a sound wave in the air?
A. slowing down the movement of particles in the air
OB. raising the temperature of the air
C.
removing particles form the air
D. decreasing the kinetic energy of the air
OE.
stopping particle collisions in the air
Reset
Next
Answers
Answer:
B. raising the temperature of the air
Warm 12 grams of water from 98 degrees Celsius to 99 degrees Celsius
Answers
Answer:
E=mc△T
E=0.012(4200)(99-98)
E=50.4J
50.4 joules of heat is used
how many days are in a calendar?
Answers
Answer:
365
Explanation:
A calendar is equal to a year and it is 365 days in a year.
Which natural resource is renewable?
Coal
Wind
Topsoil
Oil
Answers
Answer:wind
Explanation:
The natural resource that is renewable is wind. Explanation on wind as a renewable resource can be found below.
What is renewable resource?Renewable resources are those resources that is replenished or replaced by natural processes at a rate comparable to its rate of consumption by humans or other users.
Renewable resources cannot be exhausted as a result of use, unlike, their non-renewable counterparts.
Examples of renewable natural resources are as follows:
SunWindWaterTherefore, the natural resource that is renewable is wind.
Learn more about renewable resource at: https://brainly.com/question/19604560
How will recreation be affected by sea level rise?
Answers
Answer:
Scientists predict that sea levels could rise up to six-feet by 2100. An increase this large will swallow beaches—impacting public access, beach recreation, and healthy ecosystems. ... With less sand beach-goers will have a completely different recreational experience in the future.
Explanation:
Hiii :( this is the second question and not making sense to me at all please help <3 it’s due soon
Imagine a linear regression line that fits the data below on temperature and it’s correlation to clothes sales. What is the equation for your regression line?
Answers
Answer:
Socratic app
Explanation:
it will help you
7. Which phase changes require a gain of energy (heat)?
a. melting and freezing
b. sublimation and vaporization
c. vaporization and condensation
d. sublimation and deposition
Answers
Answer:
c
Explanation:
Answer:
C.
Explanation:
When there is heat the water turns into vapour if not covered but will turn back to water if covered (condensation)
The mass of a box is 300 kg and it's base area is 15m². Calculate the pressure exerted by the box on the ground.
Answers
Answer:
• Mass, m = 300 kg
• Area, a = 15 m²
• Acceleration due to gravity, a = 9.8 m/s²
To Find :
• The pressure exerted by the box on the ground
Solution :
We know that,
★ Pressure = Force/Area
For calculation of Pressure we will have to find the force acquired first
From Newton's 2nd law of motion :
★ Force = Mass × Acceleration
→ F = 300 × 9.8
→ F = 2940 Newtons
Put the value of Force in the formula of Pressure :
→ Pressure =
→ Pressure = 196 Pascals
The pressure exerted by the box on the ground is 196 Pascals.
Write a story that includes (in order) the 7 waves of the electromagnetic spectrum. Try incorporating a characteristic about each type of wave. Bold or highlight them.
Answers
Answer:
sorry im doing a challenge but i will have someone answer it
Explanation:
How do an object's mass
and velocity relate to its
momentum?
Answers
Please help. I will mark you as brainliest !!!
You place a book on top of a spring and push down, compressing the spring by 10 cm. When you let go of the book, it is pushed up by the spring. Which statement describes what happens to the energy of the spring book system?
A. The elastic potential energy of the system increases.
B. The gravitational potential energy of the system increases.
C. The kinetic energy of the system decreases.
D. The total energy of the system increases.
Answers
Answer:
Eliminate D as there is no nonconservative force, then look at each energies before and after. The speed of the book will increase, so kinetic energy is increasing. The height of the book is increasing, so gravitational potential energy is increasing. However, since the spring is becoming decompressed, the elastic potential energy is decreasing.
Explanation:
Answer:
it is A
Explanation:
repeating anyone ineed answers plsss?
Answers
Answer:
the answer of question no5 is b
A laser beam is directed at the Moon, 380,000 km from the Earth. The beam diverges at an angle of \thetaθ of 0.8 x 10-5 rad. What diameter spot, in m, will it make on the Moon?
Answers
Answer:
3040 m
Explanation:
The formula to apply here is ;
d=∅*r where
d is the diameter of the spot , ?
∅ is angle of divergence in radians, = 0.8 * 10⁻⁵rad
r is distance of Moon from Earth, =380,000 km
Applying the formula as;
d=∅*r
d= {0.8 *10⁻⁵} * 380,000 * 1000
d= 3040 m
