Let Mass be m
F=maIf its doubled then
[tex]\\ \sf\longmapsto F=2ma[/tex]
Hence force also needs to be doubled.
In the opposite figure, what is the
value of equivalent resistance
between (a) and (b)
A-3 Ω
B-6 Ω
C-9 Ω
D-13.5 Ω
Answer:
9
Explanation:
since the resistance is not changing
I need help on this question
Is the following statement an observation or an inference? "The house collapsed at the same time that the poles fell down." Explain
Answer: Observation (≧▽≦)
Explanation: An observation is what you noticed. That being said i noticed "The house collapsed at the same time that the poles fell down." //Hope this helped ≧▽≦//
A roller coaster’s velocity at the top of a hill is 10 m/s. Two seconds later it reaches the bottom of the hill with a velocity of 26 m/s. What was the acceleration of the coaster? [3]
Answer:
8 m/s²
Explanation:
a = [tex]\frac{v-v0}{t}[/tex]
a = (26 - 10)/2 = 8 m/s²
What becomes of the loss in mass of nuclei when heavy atoms split?
Answer:
when heavy atoms split the loss of mass is converted into kinetic energy
Explanation:
why is there more potential for wind energy in the upper himalayan in nepal?
Answer:
The potential area of wind power in the country is about 6074 sq. km with wind power density greater than 300 watt/m2. More than 3,000 MW of electricity could be generated at 5 MW per sq km. The commercially viable wind potential of the country is estimated to be only about 448 MW.
sebuah titik p berjarak 2m dari muatan sebesar 5×10⁷c. besar potensial titik p adalah
Answer:
Explanation:
V=k*q/r
V= (9*10⁹) * 5*10⁷/2
V = 9*10⁹ * 25*10⁶
V = 225*10¹⁵
A compass works because its magnetic needle
a. contain atoms
b. contain charged particles
c. repels magnet
d. spins freely
Answer
c. repels magnet
.
Give two example of bodies that you see in daily lives,which are streamlined to reduce friction
Answer:
1) ironing a shirt 2) writing on surfaces 3) working of an eraser
A car is running at a constant speed of 25m/s when the driver sees a child's sped of 20m a head he applied a break a car is top in 50 minutes calculate the time to stop the car and accelaration
Answer:
Umm..... Sorry can't understand your question, too many grammar mistakez
1. A body has a velocity of 72 km/hr. Find its value in m/s.
72 Km/hr
= 72000 m/ 60×60 s
= 72000 m/ 3600 s
= 20 m/s
Answer is 20 m/s.
Hope it helps! Please do comment
If a line has a slope of 2 and a
rise of 12 what was the run
If an object is projected horizontally from a height of 5 m with an initial velocity of 7 m/s, what is the value of x^0?
x0=−9.8 m/s2
x subscript 0 baseline equals negative 9.8 m per s squared
x0=0
x subscript 0 baseline equals 0
x0=5
x subscript 0 baseline equals 5
x0=7
The horizontal displacement (x₀) of the object is 7 m.
The given parameters;
height of the object projection, h = 5 minitial horizontal velocity of the object, uₓ = 7 m/sThe vertical displacement equation of the object is given as;
h = vt + ¹/₂gt²
where;
v is the initial vertical velocity = 0
The time of motion is calculated as;
5 = 0 + (0.5 x 9.8)t²
5 = 4.9t²
[tex]t^2 = \frac{5}{4.9} \\\\t^2 = 1.02\\\\t = \sqrt{1.02} \\\\t = 1 \ s[/tex]
The horizontal displacement of the object is calculated as;
X₀ = uₓt
X₀ = 7 x 1
X₀ = 7 m
Thus, the horizontal displacement (x₀) of the object is 7 m.
Learn more here:https://brainly.com/question/24527971
When dropped from rest, any object will fall a total distance of 19.6 m in the first 2 seconds of its fall. How far
does the object fall just during the 2nd second (i.e., from time t= 1 s to t = 2 s)?
Answer: The acceleration due to gravity increases the velocity of a falling object by 9.8 m/s per
second. Answer B is wrong because velocity increases. Answer C is wrong because the
distance increases every second. Ans. E is wrong because the derivative of distance with
respect to time gives the velocity, not the acceleration.
Explanation:
convert 300 k into Celsius scale
Answer:
Given, kelvin temperature = 300 K
C = K – 273.15
C = 300 – 273.15
C = 26.85
Therefore, 300 Kelvin is equal to a celsius temperature of 26.85 °C
Hope this helps u
1. A car weighs 1000kg, you can push it .05 m/s2, how much force (F) are you applying
to the car? Here we use F=MA:
F= 1000 x .05
F= 50 newtons
Mass of the car (m) = 1000 Kg
Acceleration (a) = 0.05 m/s^2
Let the force we are applying to the car be F N.
By using the equation,
F = ma, we get
F = 1000×0.05 N = 50 N
Answer: We are applying 50 N force to the car in the direction of motion.
A 4500-kg helicopter accelerates upward at 2.0 m/s^2. What lift force is exerted by the air on the propellers?
Using newtons second law .
[tex]\\ \sf\longmapsto Force=ma[/tex]
[tex]\\ \sf\longmapsto Force=4500(2)[/tex]
[tex]\\ \sf\longmapsto Force=9000N[/tex]
a plane is traveling at 250 m/s north after being in the air for 1 hour, what is the displacement?
Answer:
900,000 meters of displacement.
Explanation:
250x60x60 because it is meters per second and needs to be converted to a full hour.
What is F = m x a in Newton's laws of motion?
Answer:
This is Newton's second law.
Newton's second law text:
(If a resultant force acts on a body, then an acceleration will give it an acceleration, the magnitude of which is directly proportional to the amount of the net force, and a direction is in the direction of the net force itself)
F=ma
net force = mass x acceleration
I hope I helped you^_^
what is practical machine?
Explanation:
A practical machine is a simple machine that losses energy and have parts that have weights, friction and it causes some loss of work done.
How much work do you do when you push a couch 3 m across the floor using a force of 60 N?
Extra Points because there are three questions.
1. An object goes from 20 m/s to 5 m/s in 1.2 seconds. What is the acceleration of the object?
a=vf-vi/t
2. What is the difference between distance and displacement? What is the difference between mass and weight?
3. What is the force necessary to accelerate a 40 kg object to 6 m/s/s?
F=ma
What is the final velocity of a dragster that travels 400 meters from the start line
to the finish line in 5 seconds? *
Answer:
80m/s
Explanation:
The formula for velocity is [ v = s/t ] where s = displacement and t = time.
= 400/5
= 80m/s
Best of Luck!
1. State Newton's third law of motion and write any three applications of it
Answer:
1)When a bullet is fired from the gun with a certain force (action) as a reaction an equal and opposite force is exerted on the gun. 2)when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air.
Newton's Third law: when object A exerts force on object B, object B simultaneously exert oppositely directed force of equal magnitude on object A.
1)When a bullet is fired from the gun with a certain force (action) as a reaction an equal and opposite force is exerted on the gun.
2)when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air.
10. Scientists try to develop an explanation for what
they see happening in the natural world. What
must be true of any explanation they develop?
A. It must be supported by evidence.
B. It can never be changed.
C. It must be shown to have practical value for
humans.
D. It must be based on information that other
scientists have also gathered.
Answer:
it must be based on information that other scientists have also gathered
Answer:
hope its ok
Explanation:
Science is a way of learning about what is in the natural world, how the natural world works, and how the natural world got to be the way it is. It is not simply a collection of facts; rather it is a path to understanding.so it should contain a logical theory but it can also never be said as the final answer.
so A) OR D) both are correct
After using soap to wash dishes by hand, if is sometimes difficult to keep your hands from remaining stick. Explain why rinshing your hand in lemon juice would make then less slick
A stone falls from the top of a building and hits the ground at a speed of 32 m/s.
The air resistance force on the stone
is very small and may be neglected.
Calculate the time of fall.
Answer:
Explanation:
first you would need the height of the building in meters then using the formula calculate 32 m/s ÷ the height of the building in meters and you will get your answer
A car accelerates from rest at 6.6 m/s^2. How much time does it need to attain a speed of 7 m/s?
explanation:
Here,
initial velocity(u)=0m/sfinal velocity (v)=7m/sacceleration (a)=6.6m/s²time(t)=?Using Formula;
v = u + at
or, 7 = 0 + (6.6*t)
or, 7 = 6.6t
or 7/6.6 = t
or, t = 1.06s
I think it will help you....
help me please i dont understand
What is the difference between a hypothesis and a theory?
Answer:
a hypothesis is an assumption made before any research has been completed for the sake of testing (basically what you think is going to happen). A theory is an explanation for what has been shown many times. (what happened with evidence)
Explanation:
1) How many valence electrons are in the alkaline earth metal family? Do
they form cations or anions?
A)
1 valence electron, cations
B)
1 valence electron, anions
C)
2 valence electrons, cations
D)
2 valence electrons, anions
Answer:
Below
Explanation:
Alkaline earth metals have 2 valence electrons, which means that when they react with other elements, they will lose rather than gain their 2 electrons making them positive ions or cations.
So the correct answer to your question would be....
C) 2 valence electrons, cations
Hope this helps! Best of luck <3
