Answer:
The nature of volcanic eruptions is highly dependent on magma viscosity and also on dissolved gas content. ... long it takes the treacle to flow from one end of a boiling tube to the other.
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 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.
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:
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:
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.
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.
what is the difference between circumstances and circumference??
pls ans asap
Answer:
understand
Explanation:
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What quantity is measured on the x-axis of a position vs. time graph.
distance
time
velocity
position
Answer:
Velocity
Explanation:
which particle will be deflected toward the positive plate as it enters the electric field
Answer:
Electrons are negatively charged and are deflected on a curving path towards the positive plate. Neutrons have no charge, and continue on in a straight line.
The particle will be deflected toward the positive plate as it enters the electric field is an electron.
What is an Electric field?The electric field is the region of space in which the particle experiences the electrostatic force.
As the plate is positive, so to deflect any particle towards it, the particle must be negatively charged.
An electron is a particle that has a negative charge.
The particle will be deflected toward the positive plate as it enters the electric field.
Learn more about Electric field.
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A car with a mass of 1400 kg moves along the ice with a constant velocity of 18.0 m/s. What is the car’s momentum?
Answer:
M= mv= 1400 x 18= 25200 kg x m/s
Four forces are acting on the block in the diagram. One of the forces is unknown. If the block is in equilibrium, what is the correct unknown force?
You can download answer here
shorturl.at/ipxUY
Stationary charges produce _________fields, and moving charges produce _________fields respectively. *
Answer:
A stationary charge produces only electric field whereas a moving charge produces both electric as well as magnetic fields.
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
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.
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
This is an example of:
A model rocket is launched and is descending.
Question 1 options:
A. potential energy
B. kinetic energy
C. both
Answer:
C. both
Explanation:
kinetic energy bcs it's moving and gravitational potential energy for it's descend.
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:
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
number of atoms of each element iron oxide?
Answer:
Note that the number of atoms of each element is the same on each side of the reaction: four iron atoms and six oxygen atoms.
Explanation:
#CarryonlearningAnswer:
10, 4 iron and 6 O
Explanation:
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:
as velocity _________ kinetic energy ____________ and potential energy _____________
Answer:
Kinetic energy increases and potential energy decreases
Explanation:
Because kinetic energy is proportional to the square of the velocity, when velocity is doubled, kinetic energy is quadrupled. Kinetic energy K=mv^2/2. Kinetic energy is the energy of movement or change. Potential energy is the energy a system has as a result of being able to undergo some change. ... As an object falls its potential energy decreases, while its kinetic energy increases. The decrease in potential energy is exactly equal to the increase in kinetic energy.
The simple activities like walking, jumping and falling involves kinetic energy. Here as the velocity increases kinetic energy increases and the potential energy decreases.
What is kinetic energy?The measure of the work that an object does by virtue of its motion is known as the kinetic energy. It is transformed between the objects and can be transformed into other forms of energy. It is a scalar quantity.
Every moving object and particle have kinetic energy. The kinetic energy of the particle is dependent on the mass and velocity of the particle. If the velocity is doubled, then the kinetic energy is quadrupled.
The equation of kinetic energy is:
Kinetic energy = 1/2 × m × v²
The energy stored by an object due to its position is called the potential energy. It is found to be maximum at a particular height. So it decreases with the increase of velocity.
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If there were no air resistance, what would happen to hailstones?
Answer: If there are no air resistance the hailstones would hit the earth at velocities near 350 m/s and melt before they hit the ground.
Explanation: Hope This Helps
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
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
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
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:
Conservation of momentum
Answer:
8.6 m/s
Explanation:
From the question,
applying law of conservation of momentum
Total momentum before collision = Total momentum after collsion
mu+m'u' = mv+m'v'....................... Equation 1
make v' the susbject of the equation
v' = (mu+m'u'-mv)/m'.................. Euqation 2
Where m = mass of the ball, m' = mass of the can, u = initial velocity of the ball, u' = initial velocity of the can, v = Final velocity of the ball, v' = final velocity of the can.
Given: m = 1.2 kg, m' = 0.7 kg, u = 14 m/s , u' = 0 m/s (at rest), v = 9 m/s.
Substitute these values into equation 2
v' = [(1.2×14)+(0.7×0)-(1.2×9)]/0.7
v' = (16.8-10.8)/0.7
v' = 6/0.7
v' = 8.6 m/s
A tuba creates a 4th harmonic of
frequency 116.5 Hz. When the first
valve is pushed, it opens an extra bit
of tubing 0.721 m long. What is the
new frequency of the 4th harmonic?
(Hint Find the original length.)
(Speed of sound = 343 m/s)
(Unit = Hz)
Answer:
93.54 Hz
Explanation:
✓From the question, Number of harmonic frequency is 4
✓ the frequency (f₄ )= 116.5 Hz
✓harmonic frequency can be calculated using below expresion
fₙ = [ (nv)/4L]..........eqn(1)
v = speed of sound= 343 m/s
n = number of given harmonic frequency
L = Length of the rope
Using above expresion ,and substitute the values at (n=4) which is 4th harmonic frequency to find the " initial Lenght of the rope
fₙ = [ (nv)/4L]
f₄ = 4× 343 /4L
f₄ = 343 /L
L= 343 /f₄
But f₄= 116.5 Hz
L= 343/116.5= 2.944m
Hence, initial Lenght of the rope= 2.944m
We can determine the frequency of new length as ( initial Lenght of the rope + tubing Lenght)
= ( 2.944m + 0.721m )
= 3.667m
Hence, new length= 3.667m
To find the new frequency of the 4th harmonic we will use eqn(2)
f₄ = v/l ...............eqn(2)
From equation (2) If we substitute the values we have
f₄ = (343/3.667)
= 93.54 Hz
Hence, the the new frequency of the 4th harmonic is
93.54 Hz
Answer: 103.3?
Explanation: