Hello. You did not inform the experiment that Arthur is conducting, which makes it impossible for your question to be answered accurately. However, I will try to help you in the best possible way.
The hypothesis is an assumption that is made before the experiment is carried out. This hypothesis is formed with the observation of some phenomenon of nature where the researcher believes that two or more elements interact to form a result. In this case, the experiment is carried out to determine whether the assumption, that is, the hypothesis is false or true. In the event that an experiment determines that the hypothesis is false, two things may have occurred: (a) the experiment was set up, or analyzed incorrectly, (b) the elements tested have no relation to the observed phenomenon.
I’ll name u BRAINLIEST if u get this right
PLEASE HELP...How much power is done when you exert 30J of Work over 5 seconds?
May Help:
In classical physics terms, you do work on an object when you exert a ... to do work (follow the kinetic and potential energy links for a more in ... runs twice as powerfully as the runner that finishes in 5 hours. The unit of power is joules per second or J/s when work is measured in joules and time in seconds.
What does saliva begin to break down in the mouth?
answers QUICK I will make you brainst !
An enzyme called amylase breaks down starches (complex carbohydrates) into sugars, which your body can more easily absorb. Saliva also contains an enzyme called lingual lipase, which breaks down fats.
What is the vertical motion of an object?
Answer:
Vertical motion is the movement of an object in a straight line.
When an object is thrown up, it always comes down, as it is affected by the acceleration due to gravity. This is called as vertical velocity.
This is an example of a ____________ resource using _______.
A'renewable;; wind
B'nonrenewable; wind
C;renewable; electricity
D;nonrenewable;electricity
Answer:
A
Explanation:
I guess but not sure cause wind is soemthing you can get back electricity is soemthing you can't
Drawbacks to which energy source include build up of silt or disruption of salmon migration?
es
A)
Nuclear energy
B)
Geothermal energy
C
Photovoltaic cells
D)
Hydroelectric power
Una carga eléctrica de 120 Coulomb pasa uniformemente por la sección transversal de un hilo conductor durante un minuto. La intensidad de la corriente eléctrica que circula en ese conductor es
Answer:
I = 2 A
Explanation:
Electric current is defined as the amount of face per unit of time
I = Q / t
where Q is the charge and t is the time
let's reduce the time to the SI system
t = 1 min (60s / 1 min) = 60 s
let's calculate
I = 120/60
I = 2 A
When a 4-kg ball is thrown upwards at 40 m/s, at what
height is the potential energy equal to the kinetic
energy
Answer:
the height of the potential energy is 3,200 J
Explanation:
The computation of the kinetic energy is shown below:
Kinetic energy = 1 ÷ 2 × mass × velocity^2
= 1 ÷ 2 × 4 kg × 40 m/s^2
= 3,200 J
Hence the height of the potential energy is 3,200 J
What is the momentum of a child on a wagon traveling at a velocity of 1.5
m/s if the combined mass of the child and the wagon is 225 kg?
Answer:
the momentum of the child is 337.5 kg.m/s
Explanation:
Given;
velocity of the wagon, v = 1.5 m/s
the combined mass of the child and the wagon, m = 225 kg
The momentum of the child is calculated as;
P = mv
substitute the given values of mass and velocity to determine the momentum,
P = 225 x 1.5
P = 337.5 kg.m/s
Therefore, the momentum of the child is 337.5 kg.m/s
The same strength force was exerted in the same direction on both Object A and Object B. Why did Object A go faster than Object B?
Answer:
[tex]m_B > m_A[/tex]
the mass of body B must be greater than the mass of body A
Explanation:
Newton's second law establishes a linear relationship between the force, the mass of the body and its acceleration
F = m a
a = F / m
Let's analyze this expression tells us that the force is of equal magnitude for the two bodies, but body A goes faster than body B, this implies that it has more relationships
a_A > a_B
[tex]\frac{F}{m_A} > \frac{F}{m_B}[/tex]
[tex]m_B > m_A[/tex]
Therefore, for this to happen, the mass of body B must be greater than the mass of body A
A snowboarder travels 17 m [N], 25 m [S], then 33 m [N]. Choose the correct
statement about the snowboarder's motion *
A. The snowboarder has a larger distance travelled than displacement
B. The snowboarder has a larger displacement than distance travelled
C. The snowboarder has more inertia after the 25 m trip than after the 17 m trip
D. The snowboarder has constant acceleration
What are some examples from regular life that support the claim that gravitational interactions are are attractive and depend on masses
Answer:
The force that holds the gases in the sun.
The force that causes a ball you throw in the air to come down again.
The force that causes a car to coast downhill even when you aren't stepping on the gas.
The force that causes a glass you drop to fall to the floor.
Explanation:
Hope, these examples may help you
Explain why white light splits up into the different colours when it goes through a prism
Answer:
Light splits up into different colors because of the electromagnetic spectrum which makes the light bend, wavelength, and it makes different colors by it :3
Explanation:
:3
Calculate the weight of a boy of mass 67kg on Earth if gravity = 10m/s/s.
If 2.2 lbs = 1.0 kg, and Megan Progress weighs 130 lbs, what is her weight in newtons?
(F= ma). where acceleration due to gravity is 9.8 m/s2
Answer:
Force = 2802.8 Newton
Explanation:
Given the following data;
Mass = 130 lbs
But, 2.2 lbs = 1.0 kg
130 lbs to kg = 130 * 2.2 = 286 kg
Acceleration due to gravity = 9.8m/s²
To find the force in Newton;
Force = mass * acceleration due to gravity
Force = 286 * 9.8
Force = 2802.8 Newton
CHECK MY Second post
Answer:
I dont get it
Explanation:
even if u dont know the right answer can someone just give me an answer that looks right
Answer:
The answer is elastic
Explanation:
hope this helps!
Plzz help! A stationary speed gun emits a
microwave beam at 2.41x1010 Hz. It
reflects off a pitched baseball and
returns 3190 Hz higher. What is the
speed of the baseball?
(Unit = m/s)
Answer:
The speed of the baseball is approximately 19.855 m/s
Explanation:
From the question, we have;
The frequency of the microwave beam emitted by the speed gun, f = 2.41 × 10¹⁰ Hz
The change in the frequency of the returning wave, Δf = +3190 Hz higher
The Doppler shift for the microwave frequency emitted by the speed gun which is then reflected back to the gun by the moving baseball is given by 2 shifts as follows;
[tex]\dfrac{\Delta f}{f} = \dfrac{2 \cdot v_{baseball}}{c}[/tex]
[tex]\therefore{\Delta f}{} = \dfrac{2 \cdot v_{baseball}}{c} \times f[/tex]
Where;
Δf = The change in frequency observed, known as the beat frequency = 3190 Hz
[tex]v_{baseball}[/tex] = The speed of the baseball
c = The speed of light = 3.0 × 10⁸ m/s
f = The frequency of the microwave beam = 2.41 × 10¹⁰ Hz
By plugging in the values, we have;
[tex]\therefore{\Delta f} = 3190 \ Hz = \dfrac{2 \cdot v_{baseball}}{3.0 \times 10^8 \ m/s} \times 2.41 \times 10^{10} \ Hz[/tex]
[tex]v_{baseball} = \dfrac{3190 \ Hz \times 3.0 \times 10^8 \ m/s }{2.41 \times 10^{10} \ Hz \times 2} \approx 19.855 \ m/s[/tex]
The speed of the baseball, [tex]v_{baseball}[/tex] ≈ 19.855 m/s
Which statement MOST LIKELY describes what changes when moving downwards from fluorine to chlorine on the periodic table?
A) The classification changes from nonmetal to metal
B) The ionic charge of the elements changes from positive to negative
C) The number of valence electrons increase
D) The number of total electrons increase
Answer:
B) The ionic charge of the elements changes from positive to negative
Explanation:
In the case when there is a moving towards downward direction from fluorine to chlorine on the periodic table so this represent that there are an ionic elements charge varies i.e. from positive to negative
Therefore as per the given situation the option b is correct
And, the rest of the options are wrong
Answer:
b
Explanation:
i took the test
The relationship between kinetic energy and speed is ________ proportional
The relationship between kinetic energy and speed is directly proportional.
The given problem is based on the Kinetic energy. The energy possessed by any object by virtue of its motion is known as kinetic energy of an object. The mathematical expression for the kinetic energy is given as,
[tex]KE = \dfrac{1}{2}mv^{2}[/tex]
Here,
m is the mass of object.
v is the speed of object.
the mass of any object remains constant. Then, the kinetic energy is given as,
[tex]KE \propto v^{2}[/tex]
Thus, we can conclude that the kinetic energy is directly proportional to the square of speed of object.
Learn more about the kinetic energy here:
https://brainly.com/question/17858145
When the sun, the moon, and the Earth line up during a new moon, which of the following is produced?
low tide
high tide
spring tide
neap tide
Answer:
neap tide i think or high tide
Flexibility training helps reduce the range of motion of your joints and muscles.
True or false
describe the Pascal's principles
Explanation:
Pascal's principle, also called Pascal's law, in fluid (gas or liquid) mechanics, statement that, in a fluid at rest in a closed container, a pressure change in one part is transmitted without loss to every portion of the fluid and to the walls of the container.
The pressure at the bottom of a lake is 300 000 N/m2 more than at the surface of the lake. The lake is fresh water (density = 1000 kg/m3).
Answer:
h = 30.61 m
Explanation:
In this problem they indicate the pressure at the bottom of the lake and the density of the water, for which they must ask what is the depth of the lake.
The pressure is given by the expression
P = [tex]P_{atm}[/tex] + rho g h
P - P_{atm} = rho g h
The gauge pressure value is P- P_{atm} = 3 105 N / m²
h = [tex]\frac{P - P_{atm}}{ \rho \ g}[/tex]
let's calculate
h = [tex]\frac{3 \ 10^5}{1000 \ 9.8}[/tex]
h = 30.61 m
Where on Earth might you find these conditions?
football player A has a mass of 110 kg is running on the field is velocity of 2 m/s football player B has a mass of 120 kg and a stationary what if football player a collage of the football player babe what is the total momentum after the collision
Complete Question:
Football player A has a mass of 110 kg, and he is running down the field with a velocity of 2 m/s. Football player B has a mass of 120 kg and is stationary. What is the total momentum after the collision?
Answer:
Total momentum = 220 Kgm/s.
Explanation:
Given the following data;
For footballer A
Mass, M1 = 110kg
Velocity, V1 = 2m/s
For footballer B
Mass, M1 = 120kg
Velocity, V1 = 0m/s since he's stationary.
To find the total momentum;
Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.
Mathematically, momentum is given by the formula;
[tex] Momentum = mass * velocity [/tex]
a. To find the momentum of A;
[tex] Momentum \; A = 110 * 2 [/tex]
Momentum A = 220 Kgm/s.
b. To find the momentum of B;
[tex] Momentum \; B = 120 * 0 [/tex]
Momentum B = 0 Kgm/s.
c. To find the total momentum of the two persons;
[tex] Total \; momentum = Momentum \; A + Momentum \; B [/tex]
Substituting into the equation, we have;
[tex] Total \; momentum = 220 + 0 [/tex]
Total momentum = 220 Kgm/s.
The total momentum after the collision will be 220 Kgm/s.Momentum is equal to its mass multiplied by its velocity.
What is momentum?The measurement of mass in motion is called momentum. Momentum is equal to its mass multiplied by its velocity. Mathematically it is given as;
Momentum = Mass x Velocity
The given data in the problem is;
m₁ is the mass of player A= 110 kg
m₂ is the mass of player B= 120 kg
v₁ is the velocity of player A= 2m/s
v₂ is the velocity of player B=0m/s
P is the total momentum=?
The momentum of player A;
[tex]\rm P_A= m_A \times v_A \\\\ \rm P_A= 110 \times 2 \\\\ \rm P_A= 220 \ Kgm/sec[/tex]
The momentum of player B;
[tex]\rm P_B= m_B \times v_B \\\\ \rm P_B= 120 \times 0 \\\\ \rm P_B= 0 \ Kgm/sec[/tex]
The total momentum is given by;
Total momentum = momentum of the player A+ momentum of the player B
[tex]\rm P= P_A+P_B \\\\ \rm P= 220+0 \\\\ \rm P=220 \ m/sec[/tex]
Hence the total momentum after the collision will be 220 Kgm/s
To learn more about the momentum refer to the link;
https://brainly.com/question/4956182
Humans can hear frequencies up to approximately 20,000 Hz, while dogs can hear frequencies up to around 60,000 Hz. What sound frequency would you expect to be emitted by a dog whistle, which can be heard by dogs but not by humans?
Answer:
Between 23,000 to 54,000 Hz
What is the reason for heat transfer from one substance to another?
OA. difference in pressure
OB.
difference in volume
O c.
difference in temperature
OD.
difference in mass
Answer:
A I think
Explanation:
heated air molecules have a lot if pressure and they try to release that pressure by either expanding or transfering
Describe the physical properties of stars and how they relate to the Hertsprung-Russell diagram.
write like 4 sentences
Answer:
Explanation:The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. Stars in the stable phase of hydrogen burning lie along the Main Sequence according to their mass.
hoped this helped
Which kind of body has a nucleus, coma, and tail?
A.comets
B.stars
C.meteors a
D.steroids