Answers
Answer:
A) so the conditions for the expirament don’t affect the outcome
b) to make sure the results are conclusive and accurate
Explanation:
Related Questions
A 2kg rock is dropped from a height of 10m and hits the ground going 11m/s. How much work was done by air resistance as it fell?
Answers
Answer: 0.24 kg/m
Explanation: use k = ρ * A * C / 2 as the formula6. _______________ : when a certain number of waves pass a given point for a certain number of seconds? Group of answer choices A. wavelength C. amplitude D. height B. frequency
Ill give brainly-ist.
Answers
Answer:
b
kakanandnanjsnMajdnAnnznnzkkzid
Answer:
Frequency
Explanation:
I just took that test
a race car driving around the road is unbalanced or balanced?
Answers
Answer:
balenced
Explanation:
Don't scroll down. Help pls 22 POINTS!!
Answers
Answer:
I don't know if these are all right but these are my best answers. good luck and I hope you do well.
1. true
2. true
3. false
4. true
5. true
6. true
7. true
8. true
9. false
10. false
13. it stimulates the heart through chest compressions
14. on bare skin upper right shoulder and lower left ribs
15. no CPR
Explanation:
Rose and Joel's children recently moved out to live independently. The couple has been missing their kids and is experiencing the empty-nest syndrome. Which TWO strategies will help them deal with their loneliness? -pursuing a hobby -joining an activity club with like-minded people -calling their children regularly -visiting their children frequently -convincing their children to move in back home with them
Answers
Answer:
Joining a club and getting a hobby
Explanation:
Join a club if you want to meet people, and when they choose a hobby it should be more than just gardening, because gardening sucks in the long term and it doesn't fill that gap. I know because my grandma did it and she is still sad.
a) A 12 kg object has a velocity of 37.5 m/s. What is its momentum?
b) How far does it get in 16 s?
Answers
Answer:
The answer would be 450 m kg/s
Explanation/ Explanation / Example:
Provided an object traveled 500 meters in 3 minutes , to calculate the average velocity you should take the following steps: Change minutes into seconds (so that the final result would be in meters per second). 3 minutes = 3 * 60 = 180 seconds , Divide the distance by time: velocity = 500 / 180 = 2.77 m/s .
If this doesn't help let me know!
What causes "changing" motion?
Balanced forces
Unbalanced Forces
Steady Motion
The force
Answers
Answer:listen to class
Explanation:
-1
Answer:
Unbalanced Forces
Explanation:
According to the Newton's First law, it states that an object either remains at rest or continues to move at a constant velocity, unless it is acted upon by an external force. The answer is Unbalanced Forces
A wave with a wavelength of 4.0 m has a frequency of 2 Hz. Calculate the speed of this wave.
O 2 m/s
O 8 m/s
O 6 m/s
O 0.5 m/s
Answers
Answer:
8m/s
Explanation:
because frequency×wavelength
Giving Brainliest
Please help, Stay Safe and healthy
Answers
Answer: A I think
Explanation:
According to the law of superposition, rocks found at the bottom are the oldest ones. The rocks on the top parts are the youngest.
Una muestra de agua de 250g de agua se caliento desde 10°C hasta 60°C calcula la cantidad de calor absorbido por el agua el calor especifico del agua es de 4186J/Kj.K
Answers
Answer:
Calor absorbido, Q = 52325 Joules
Explanation:
Dados los siguientes datos;
Masa = 250g to kg = 250/1000 = 0.25kg
Temperatura inicial, T1 = 10°C to Kelvin = 273 + 10 = 283K
Temperatura final, T2 = 60°C to Kelvin = 273 + 60 = 333K
Capacidad calorífica específica = 4186 j/kg.K.
Para encontrar la cantidad de calor necesaria;
La capacidad calorífica viene dada por la fórmula;
[tex] Q = mct [/tex]
Dónde;
Q representa la capacidad calorífica o la cantidad de calor.
m representa la masa de un objeto.
c representa la capacidad calorífica específica del agua.
dt representa el cambio de temperatura.
dt = T2 - T1
dt = 333 - 283
dt = 50 K
Sustituyendo en la fórmula, tenemos;
[tex] Q = 0.25*4186*50[/tex]
[tex] Q = 52325 [/tex]
Calor absorbido, Q = 52325 Joules
the movement of a body between any two points in any direction is called
Answers
Answer:
I think is called Motion
but am not sure
Answer:
Maybe its displacement, I'm not sure?
Explanation:
A particle was moving in a straight line at 172.8 km/hr. If it decelerated over 120 meters to come to rest, find the time taken to cover this distance.
Answers
Answer:
v=s/t
s=vt
t=s/v
t=(120×10‐³)/172.8
(the distance meters has been changed to kilometres)
t=1/1440 hrs
Given ,
A stone of mass 0.2kg is thrown vertically upwards from the ground with a velocity of 20m/s. Find the maximum height attained by the stone
Answers
Answer: 20.4 m
Explanation: speed v upward is v = vo -gt.
When maximum height v = 0, vo -gt = 0 and
T = vo / g = 20 m/s / 9.81 m/s² = 2.04 s
Now height y = vot -0.5 gt^2 = 20,4 m
This is possible to solve using
Conservation of energy Ek= Ep
0.5mv² = mgh. And h = v²/2g. Results same
If I keep F constant in F=ma, what is the relationship between m and a?
Answers
Answer:
If F is a constant, we can take f = 1
f = m×a
ma = 1
therefore we can say that force is hence proportinal to the product of mass and acceleration.
A 2 column table with 4 rows. The first column is labeled substance with entries W, X, Y, Z. The second column is labeled temperature in degrees celcius with entries 40, 37, 19, 37.
Which statement is best supported by the data in the chart?
Answers
Answer:
B
Explanation:
Answer:
B. is the correct option! The person above was correct :)
Explanation:
Have a great day!
Please help!!! what is the main point of paragraph 3?
Answers
To drive your car from Auburn to Atlanta (173.8 km) takes a significant amount of work. Assuming the force of friction between the tires and the road is 10290 N, how much work needed to drive that far? Express your answer in megajoules (MJ).
Answers
Answer:
1788.402 MJ
Explanation:
Work done = Force (N) x distance (m)
First we have to convert distance into metres:
173.8 x 1000 = 173,800 m
Then plug these values into the equation above:
173,800 x 10290 = 1788402000 J
The reason it's Joules (the unit for energy) is because work done = energy transferred
Now we have to convert Joules into Mega Joules:
1 J = 1/1000000 MJ
1788402000 J = 1788402000/ 1000000 = 1788.402 MJ
Some people today claim the Earth is flat. Produce an argument to prove that the
Earth is not flat.
Answers
Answer:
i mean i think it is. we have no real pics of the earth they are all fake. And the moon landing was fake. the usa flag was blowing but there is no wind in space . its all fake
Explanation:
work and power!!
____is the measure of how much work, energy, or power is used or converted properly. Efficiency C Power b Newton d. Horsepower
Answers
Answer:
Efficiency
Explanation:
Which chemical change describes the reactions of elements and compounds that, in general, do not involve carbon and typically take place in laboratories or industries?
Answers
Answer:
Inorganic.
Explanation:
The chemical change which describes the reactions of elements and compounds that, in general, do not involve carbon and typically take place in laboratories or industries is inorganic.
In Chemistry, an inorganic chemical reaction can be defined as a type of chemical reaction that occurs without a carbon-hydrogen bond.
On the other hand, organic chemistry deals with reaction that occur in the presence of carbon-hydrogen bonds such as hydrocarbons.
What is the transfer of energy that occurs when a force causes an object to move?
O Energy
Force
Power
O Work
Answers
Answer:
huh? I think it's Power.....
A car goes East from 2 m/s to 16m/s in 3.5s. What is the Car's acceleration?
Answers
2+16/3.5=?
why the friction between an object and a surface is less than when the surface is titled than when the same surface is horizontal
Answers
Answer:
nvjch
ffufuxuhxjcjfbfdhdh
which line represnts object moving fastest
**WILL MARK BRAINLEST ANSWER, IF RIGHT**
Answers
Line - A: (15/10) = 1.5 inch/second
Line - B: (0/10) = 0
Line - C: (10/10) = 1.0 inch/second
Line - D: (-25/20) = -1.25 inch/second
Line-A represents the greatest speed.
HELP PLEASE!!!!!!!!!!!!!!!
Answers
What is the unit of energy called? (Give name and symbol)
Answers
And a common symbol is E
If the cells in a circuit are the wrong way around
why does it not work
2 mark explanation
I will mark brainliest
Answers
Answer:
By sarting it right and explain
Answer:
There is no current in a diode (in the reverse diode)
Explanation:
Charge willl not flow through a diode (in the reverse directiom)
BECAUSE A DIODE HAS A VERY HIGH RESISTANCE IN THE REVERSE DIRECTION
please help meeee, I need help to complete my assignment
Does an object of a higher mass absorb more thermal energy than an object of lower mass?
Answers
What is MyPyramid?
a.exercise program
b.health insurance plan
c.method of treating mental illness
d.guidelines for healthful eating
Answers
Answer:
d
Explanation:
lol Hope's this helps lovely
The tuning fork has a frequency of 426.7 is found to cause resonance in a closed column of air measuring 0.186 (the diameter of the tube is 0.015m) find the velocity of the sound produced by the tuning fork.
Answers
Answer:
The velocity of the tuning fork sound is 317.4648 m/s
Explanation:
The given parameters are;
The frequency of the fork, f = 426.7 Hz
The length of the closed air column, L = 0.186 m
The diameter of the tube, d = 0.15 m
At the fundamental frequency in a closed tube, we have;
λ = 4·L
Where;
λ = The wavelength of the wave
L = The length of the tube
From the equation for the velocity of a wave, we have;
v = f·λ
Where;
v = The velocity of the (sound) wave
f = The frequency of the wave = 426.7 Hz
λ = 4·L = 4 × 0.186 m = 0.744 m
∴ v = 426.7 Hz × 0.744 m = 317.4648 m/s
Therefore, the velocity of the sound produced by the tuning fork, v = 317.4648 m/s