Answer:B
Explanation:
Because chemical energy fuels your body with energy so without it u wont have enough energy to move.
500cm3 of water is to be jeated from room temperature 28oc to 100oc in order to prepare ahot cup pf coffee. What os the minimum heat required
Answer:
The minimum heat required is 171626 joules.
Explanation:
By First Law of Thermodynamics, the amount of heat ([tex]Q[/tex]), in joules, is equal to the change in internal energy of water. The minimum heat required is the sensible heat necessary to heat up the water. That is:
[tex]Q = \rho\cdot V \cdot c\cdot \Delta T[/tex] (1)
Where:
[tex]\rho[/tex] - Density of water, in kilograms per cubic meter.
[tex]V[/tex] - Volume of water, in cubic meters.
[tex]c[/tex] - Specific heat of water, in joules per kilogram-degree Celsius.
[tex]\Delta T[/tex] - Change in temperature, in degrees Celsius.
If we know that [tex]\rho = 1000\,\frac{kg}{m^{3}}[/tex], [tex]V = 5\times 10^{-4}\,m^{3}[/tex], [tex]c = 4186\,\frac{J}{kg\cdot ^{\circ}C}[/tex] and [tex]\Delta T = 82\,^{\circ}C[/tex], then the minimum heat required is:
[tex]Q = 171626\,J[/tex]
The minimum heat required is 171626 joules.
a way of transferring heat that occurs when the heat source and the heat sink are connected through matter
A. conduction
B. radiation
C. convection
D. combustion
Answer:
The answer is A conduction.
Explanation:
Answer:
hellowwwwwww njr perlo
Explanation:
In which situation is maximum work considered to be done by a force?
A. The angle between the force and displacement is 180°.
B. The angle between the force and displacement is 90°.
C. The angle between the force and displacement is 60°.
D. The angle between the force and displacement is 45°.
E. The angle between the force and displacement is 0°.
Answer:
d
Explanation:
I really don't know how to explain
An object spun around in a circular motion such That’s is frequency is 24Hz . What is the period of its rotation?
Answer:
It would spin ifintely
Explanation:
Answer all of those questions and you will get the brainiest
Answers:
1) A process that occurs when an object or a particle moves, referred to as kinetic energy
2) A potential energy is a stored amount of energy that changes depending on the relative positions.
3) Potential Energy is the energy stored in an object due to its position. Kinetic Energy is the energy of motion in a moving object.
4)
a) C and B
b) A
c) From B to A or from C to A
d) From A to B or from A to C
[tex]\huge\mathfrak\green{answer}[/tex]
1) Kinetic energy of an object is the measure of the work an object can do by the virtue of its motion.
For Example : A river flowing at a certain speed comprises kinetic energy as water has certain velocity and mass.
2) Potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.
For Example : A child at the top of the slide
3) KINETIC ENERGY
Kinetic energy is the kind of energy present in a body due to the property of its motionIt can be easily transferred from one body to anotherIt is relative with respect to natureFlowing water is one of the examples of kinetic energyPOTENTIAL ENERGY
Potential Energy is the type of energy present in a body due to the property of its stateIt is not transferableIt is non-relative with respect to natureWater present at the top of a hill is an example of potential energy(make sure to draw a table and write them separately)
4)
a) C and B
b) A
c) B to A then C to A
d) A to B then A to C
(mark me brainliest please I need 1 more :))
[tex]\large\sf\green{thank \: you}[/tex]
What quantity is measured on the x-axis of a position vs. time graph.
distance
time
velocity
position
Answer:
Velocity
Explanation:
A train whistle is 580 Hz when
stationary. It is moving away from
you at 18.8 m/s. What frequency
do you hear?
(Speed of sound = 343 m/s)
(Unit = Hz)
HELP PLS!!
Answer:
Did you find the answer for this?
Explanation:
Answer:
550Hz
Explanation:
Question 5
Joan wants to decrease her BMI number. How can she achieve her goal?
A. Joan can lose some weight
B. Joan can stretch and get taller
C. Joan can have her blood pressure checked.
D. Joan can take medication
a. l1 =20 A and l2 =24 A
B. l1 = 20A and l2 = 12 A
C. l1 = 26 A and l2 = 12 A
D. l1 = 24 A and l2 = 8 A
Answer:
when u find out pls lmk! i have the same question and I've been stuck for a while lol
When a planet orbits the Sun, the
force of gravity pulls the planet
A. inward.
B. outward.
C. forward.
D. backward.
The crane pull up the mass with 1150 N. Find the acceleration the
mass.m = 100kg
Kren tersebut menarik naik jisim itu dengan 1150 N. Cari daya
paduan pada jisim itu
[use gravitational acceleration, g = 9.81 m s?]
Answer:
-1.69 m/s²
Explanation:
We are told the crane pulls up the mass with a force of 1150 N.
This means it is in an opposite direction to gravity and thus acceleration(a) is negative.
Now, the gravity is acting downwards, thus, total force is;
F = mg - ma
1150 = 100(9.81 - a)
Divide both sides by 100 to get;
11.5 = 9.81 - a
a = 9.81 - 11.5
a = -1.69 m/s²
ignoring friction, what is the mass of an object accelerating at 1.8m/s2 to which an unbalanced force of 42 Newtons has been applied?
Explanation:
Newton's second law:
F = ma
42 N = m (1.8 m/s²)
m = 23 kg
An object accelerating at 1.8 m/s² to which an unbalanced force of 42 Newtons has been applied, mass of object is 23 kg.
What is force?A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Given in the question the mass of an object accelerating at 1.8 m/s² to which an unbalanced force of 42 Newtons has been applied is ,
Using Newton's second law force is given as
F = ma
42 N = m (1.8 m/s²)
m = 23 kg
An object accelerating at 1.8 m/s² to which an unbalanced force of 42 Newtons has been applied, mass of object is 23 kg.
To learn more about force refer to the link:
brainly.com/question/13191643
#SPJ2
1. A block of aluminum occupies
a volume of 15.0 mL and
weighs 40.5 g. What is its
density?
Answer:
2700g/L
Explanation:
D=m/v
40.5g/0.015L
Explain what must be true of component waves for reinforcement or interference to occur.
The answer is the component of waves must have same frequency and phase.
Suppose your friend investigated the color of pea pods and concluded that green pods (G) were dominant over yellow pods (g).
Answer:
Terms in this set (25) Mendel crossed true-breeding plants having yellow peas with plants having green peas. The resulting plant had all yellow peas. An F1 cross resulted in 3/4ths of the plants having yellow peas and 1/4th of the plants having green peas.
Explanation:
Answer the question?
I don't understand how to do this?
The earth gravity field strength in the south pole is less than the north pole. Explain
Answer:
Your weight is the combination of all the large-scale, long-term forces on your body. While the earth's gravity is by far the strongest large-scale force, it is not the only one. What you experience as "something pulling you down" is actually the total of all the forces and not just gravity. The four dominant large-scale,
Explanation:
The number of protons is equal to the atomio mass minus the alomo
number
A True
B. False
What type of planets does the asteroid belt orbit?
Answer:
Main Asteroid Belt: The majority of known asteroids orbit within the asteroid belt between Mars and Jupiter, generally with not very elongated orbits. The belt is estimated to contain between 1.1 and 1.9 million asteroids larger than 1 kilometer (0.6 mile) in diameter, and millions of smaller ones.
Explanation:
Hi!Most of these objects, called planetoids or asteroids meaning "star-like" orbit between Mars and Jupiter in a grouping known as the Main Asteroid Belt.
. The average human walks at a speed of 5 km per hour. If your PE teacher asks you to walk for 30 minutes in
gym class, how far would you walk (km)?
Answer: 2.5 km
Explanation:
5/2 = 2.5 km
60/2 = 30 mins
Which of the following statements is true of gravity?
A. Gravity decreases rapidly as the distance between two objects increases, especially when considering distances between objects in space
B. Gravity is affected by the weight of two objects that attract each other and the distance between them.
C. Both A and B are correct.
D. Neither A or B is correct.
A dog and a cat sit on a merry-go-round. The dog sits 0.3 m from the center. The cat sits 1.5 m from the center. The whole merry-go round rotates with an angular speed of 5 rad/s. Which animal, if either, is experiencing a higher velocity? Which animal, if either, is experience a higher angular speed?
Answer:
hope that pic helps!! let me know!!
Explanation:
or this expert answers from expert
The earliest form of soccer occurred in 1697b.c. by the ancient
A. Egyptian
B. Greeks
C. Chinese
D. Japanese
I’ll give brainly
Answer:
C. Chinese
Explanation:
The oldest recorded soccer-like game is the Chinese game of tsu-chu, allegedly invented by the emperor Huang-Ti in 1697 b.c. Records from Huang-Ti's time describe a game played with a leather ball stuffed with animal hair and cork. Two teams vied to kick it through goal posts.
what is the difference between circumstances and circumference??
pls ans asap
Answer:
understand
Explanation:
hiiiiiiiiiiiiiiiiiiii
Write down three facts you about motion
Write Them in complete sentences
Answer:
Kindly check explanation
Explanation:
Motion of an object could be explainwd as how a body changes position over time. Some of the proven facts about motion are stated by Sor Isaac Newton, named the Laws of motion :
1. A body will continue on it's state of rest or uniform motion in a straight line unless acted upon by a force to make it act otherwise.
2.) The second law explains that the force acting in an object is a product of the mass and acceleration.
Force = mass * acceleration due to gravity
3.) To every action, there is an equal and opposite reaction.
That is ; applied force in the positive direction on an object, yield an equal amount of force in the opposite direction.
What kind of model is this?
Probably B. but I’m close to failing if I miss this question
Answer:
i think that it is a computer model
Answer:
The answer is B.
Explanation:
Computer Model
You swing your golf club such that it hits a ball with a force of 15 newtons. It makes contact with the ball for a distance of 0.01 m. What is the work on the ball?
Answer:
W = 0.15 J
Explanation:
Given that,
The force acting on the ball, F = 15 N
It makes contact with the ball for a distance of 0.01 m
We need to find the work done on the ball. The work done can be calculated as :
W = Fd
So,
W = (15 × 0.01) J
W = 0.15 J
So, the work done is 0.15 J.
What is the mass of an apple with a potential energy of 8 Joules that is on a shelf that is 4 meters high?
A; 32kg
B; 15Kg
C;4kg
D:2kg
What is the weight of a
63.7 kg person?
Answer:
A person that weighs 63.7 kg weighs 63.7 kg
Explanation:
Too complicated to explain.
Answer: 140.4 pounds
Explanation: