Answer:
Air resistance/Drag (this is the proper term for air resistance) or gravity or friction
It depends on the direction and if you throw it across a surface or if you throw it straight upwards.
I hope this helps!!
Answer:
Newton's first law: An object at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by a net external force.
Explanation:
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
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
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?
Answer: 0.24 kg/m
Explanation: use k = ρ * A * C / 2 as the formula1. If you add air to a flat tire through a single small entry hole, why does the air spread out to fill the tire?
Answer:
The tire fills up just like anything else that holds air when u pump a ball or tire up it fills all the way up cause it is a small confined space and after filling it with air the atoms of the air fill the tire up
Explanation:
Please list them from top to bottom, for exp like in your response, a,g,q,d. Giving quite some points for it.
in hydraulic pressure the area of the larger piston is half of the smaller piston.if the force of 4000N is applied on the smaller piston.what is the distance covered by the train ?
Answer:
The distance moved by the train is half the distance moved by the force
Explanation:
Given that the force applied to the smaller piston, F₂ = 4,000 N
The pressure in the area of the larger piston, A₁ = 2 × The pressure in the smaller piston, A₂
∴ A₁ = 2 × A₂
We have;
[tex]\dfrac{A_1}{A_2} = \dfrac{2\cdot A_2 }{A_2} =2 = \dfrac{F_1}{F_2}[/tex]
F₁ = 2·F₂ = 2 × 4,000 N = 8,000 N
F₁·d₁ = F₂·d₂
∴ 8,000 N ×d₁ = 4,000 N × d₂
d₁ = 1/2·d₂
∴ The distance moved by the train is half the distance moved by the force
would this be Newtons 1st, 2nd, or 3rd law
Answer:
Newton's First Law of Motion.
Explanation:
Newton's First Law of Motion states that a body continues its state of motion untill and unless an external force acts on it. Here, the truck moves forward even after the breaks are applied in order to maintain its State of motion.
Giving Brainliest
Please help, Stay Safe and healthy
Answer: A I think
Explanation:
Select the correct answer.
Which gravitational force field diagram is drawn correctly?
A.
Answer:
B is the correct answer
Explanation:
What is the unit of energy called? (Give name and symbol)
If I keep F constant in F=ma, what is the relationship between m and a?
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.
Don't scroll down. Help pls 22 POINTS!!
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:
A toy car of mass 1kg moves at 2 m/s. If a 3N force is applied for 1.9 seconds. What is the cars final velocity? Answer to 1 decimal. Help fast please. I'll mark brainliest :)
Answer:
7.7 m/s
Explanation:
Initial speed=2 m/s
mv=Ft
1*v=3*1.9
v=5.7 m/s
5.7+2=7.7
Rama weighs 48 kg.she is carrying a load of 25 kg up to a height of 15 meter. what work does she do ? Also mention the type of work
Answer:
Explanation:
Total Mass: 48+25=73 kg
Height: 15m
So work = mgh= 73×9.8× 15=10731 j
And this is positive work.
What volume of silver metal will have a mass of exactly 2.5 kg, given that the density of silver is 10.5 g/cm3? (Hint: Note the units of mass given and the units of density.)
Answer:
238.09 cm^3
Explanation:
V=mass/density
V=2500/10.5
V=238.09 cm^3
This type of soil is found in warm, humid climates. Question 4 options: pedocal laterite pedalfer humus
Answer:
Laterite is your correct answer
Explanation:
Well i took the quiz and made a %100 meaning i am correct.
The laterite soil is found in warm, humid climates
What are Laterite soil?A variety of rocks weathered under highly oxidising and leaching circumstances to form laterite soil, which is present in the soil layer and is rich in iron oxide.
Given data ,
Let the soil be represented as A
Now , the soil is found in warm, humid climates
The laterite soil is is rich in iron and aluminium, are assumed to have developed in hot, humid tropical climes. Because to the substantial concentration of iron oxide, nearly all laterites have a rusty-red colour.
They develop as a result of prolonged, intensive erosion of the underlying rock material, which most frequently takes place during periods of high temperatures and heavy precipitation that alternate with periods of dry weather.
Hence , Laterite is the type of soil is found in warm, humid climates.
To learn more about laterite soils click :
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mass = 20Kg
velocity = 10m/s
what is the kinetic energy
Answer:
kinetic energy = 1 / 2 mv²
kinetic energy = 1 / 2 × 20 × 10 ²
kinetic energy = 1000 joules
.........
If the cells in a circuit are the wrong way around
why does it not work
2 mark explanation
I will mark brainliest
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
a car travels at a constant speed of 30km/h for .80h what is the total distance
Answer:
2400 km
Explanation:
30km for 1hr
Need up to 80 hrs , multiply both 80 and 30
So its 2400km
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.
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 ,
the movement of a body between any two points in any direction is called
Answer:
I think is called Motion
but am not sure
Answer:
Maybe its displacement, I'm not sure?
Explanation:
What is the transfer of energy that occurs when a force causes an object to move?
O Energy
Force
Power
O Work
Answer:
huh? I think it's Power.....
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?
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!
why the friction between an object and a surface is less than when the surface is titled than when the same surface is horizontal
Answer:
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Some people today claim the Earth is flat. Produce an argument to prove that the
Earth is not flat.
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:
which line represnts object moving fastest
**WILL MARK BRAINLEST ANSWER, IF RIGHT**
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.
If a motor is rated at 5.6KW, work done in 20minutes is equal to:
Answer:
given Power= 5.6×1000=5600watt
t=20min=20×60=1200sec. work done=?
P=w/t
w=pt=5600×1200=672×10^4Joule
The amount of work done by the motor is equal to 6.72 Megajoules.
Given the following data:
Time = 20 minutesPower = 5.6 Kilowatt = 5600 Watts.Conversion:
1 minute = 60 seconds20 minutes = [tex]20 \times 60 = 1200[/tex] seconds.To determine the amount of work done by the motor:
Mathematically, the work done by an object with respect to power and time is given by the formula:
[tex]Work\;done = power \times time[/tex]
Substituting the given parameters into the formula, we have;
[tex]Work\;done = 5600 \times 1200[/tex]
Work done = 6,720,000 Joules
Note: 1,000,000 Joules = 1 Megajoules.
Work done = 6.72 Megajoules.
Read more on work done here: https://brainly.com/question/13818347
PLZZZZZZZZZ HELPPPPP. BRAINLEST GIVEN What is a force of attraction between an object and the earth due to gravity?
Answer:
acceleration due to gravity: -9.8 m/s^2
Fg=mass of object*(-9.8)
Explanation:
This is a pretty vague question, but I'll answer as best I can.
All matter has gravity. YOU have gravity, although your gravitational pull is small. So, the force of attraction between the Earth and an object on Earth is modeled as
Force of gravity=(Gravitational constant*mass of object 1*mass of object 2)/distance between objects squared
Note that distance between an object on Earth and Earth is the radius of Earth (distance to Earth's core/center of mass)
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.
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
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
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.
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
Answer:
Efficiency
Explanation: