Answer:
3600 J
Explanation:
According to given question
P(rated)=60w
V= 120
I =0.50 A
t=600 second
Now,
Energy can be calculated as :
[tex]E= VI*t[/tex]
Where,
V is voltage
I is current
t is time in second
Now,
Putting the all value in above equation E
So,
[tex]E=120*0.5*600\\E=36000 J[/tex]
Therefore, 36000 J energy use up by light bulb
Nitrogen gas at standard atmospheric pressure 101.3 kPa, has a volume of 0.080 m3. If there are 3.6 mol of the gas, what is the temperature?
Answer:
271 K
Explanation:
Answer:
The temperature of Nitrogen is 270.85 K.
Explanation:
What is perfect gas ?A gas that follows Boyle's law , Charle's law and law of pressure , is called perfect gas.
Given data;
[tex]P =101.3 KPa , V = 0.08 m^{3} , \\ n = 3.6 mol , R = 8.31\\T = ?[/tex]
By the formula,
P.V = n .R.T
On putting values
[tex]1.013[/tex] x [tex]10^{5}[/tex] x [tex]0.08[/tex] = [tex]3.6[/tex] x [tex]8.31[/tex] x [tex]T[/tex]
So [tex]T =\frac{1.013*10^{5} * 0.08}{3.6 * 8.31}[/tex]
[tex]T =\frac{8104}{29.92}[/tex]
[tex]T = 270.85 K[/tex]
Hence the temperature of Nitrogen is 270.85 K
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If a 70 kg man is standing on the surface of the earth, then what is his weight on the moon
Answer:
P = 113.4 N
Explanation:
We know that if it is on the Moon it has another gravity. Therefore, it is known through the International System that the gravity of the Moon is 1.62 m/s², so..
Data:
m = 70 kgg = 1.62 m/s²P = ?Use formula:
[tex]\boxed{\bold{P=m*g}}[/tex]Replace and solve:
[tex]\boxed{\bold{P=70\ kg*1.62\frac{m}{s^{2}}}}[/tex][tex]\boxed{\boxed{\bold{P=113.4\ N}}}[/tex]The man's weight is 113.4 Newtons.
Greetings.
television set changes electrical energy to sound and light energy. In this process, some energy is *
Answer :light
Explanation:
A television set is another device that operates by the transformation of energy. An electrical beam from the back of the television tube strikes a thin layer of chemicals on the television screen, causing them to glow. In this case, electrical energy is converted into light.
If a car can exert 2000N of force to move a trailer 50 m is 20 seconds how much power did the car use?
Answer:
5000 W
Explanation:
Applying,
P = W/t................. Equation 1
Where P = Power, W = work done by the car, t = time.
But,
W = F×d ............. Equation 2
Where F = Force, d = distance
Substitute equation 2 into equation 1
P = (F×d)/t.............. Equation 3
From the question,
Given: F = 2000 N, d = 50 m, t = 20 seconds.
Substitute these values into equation 3
P = (2000×50)/20
P = 5000 W
Q:
The kinetic energy of an object can be determined
using the equation KE = 1/2mv^2, where ke is the
kinetic energy, m is the mass, and v is the speed of
the object. What is the mass of an object moving at
a speed of 12m/s that has 36 J of kinetic energy?
A:
0
2.0 kg
8.0 kg
0.13 kg
0.50 kg
Answer:
Explanation:
We will use the KE equation you wrote here and fill in what we are given:
[tex]36=\frac{1}{2}m(12)^2[/tex] and isolating the m:
[tex]m=\frac{2(36)}{12^2}[/tex] which gives us
m = .50 kg
A circuit has a voltage of 10 V and a current of 5 A. What must the resistance be?
0.5 ohms
50 ohms
2 ohms
15 ohms
Answer:
R=V/I
R= 2
Explanation:
R = 10V/5A
R = 2ohms
Motion is
displacement
a change of position in relation to another object
an object you look at to determine if something is moving
speed
Explanation:
When something is moving, we call it is in motion. It can be also defined as a change of position in relation to another object.
When an object is not moving at all, we call that it was at rest.
To be in motion, there must be a change in position.
Hence, the correct options are "a change of position in relation to another object" and "something is moving".
Why do fruits fall down when the branch is shaken?
Answer:
Explanation:
Fruits fall down when the branch is shaken because when force is applied to shake the branch,the branch comes in motion but the fruits tend to be at rest
due to inertia of rest which results the falling of fruits.
11. (a)What downward force is acting on you when you go down a waterslide? (b)What type of friction is
present? (c)If the waterslide were dry explain what type of friction in would be and (d)how that
changes your speed? (4 points)
Answer:
a) "gravitation" is the force causing you to go down a waterslide
b) It is "fluid friction" as a solid object (our body) moves over a fluid (the water)
c) It would become "sliding friction" since two solid surfaces slide over each other
d) fluid friction being the weakest friction, switching to sliding friction means a higher decrease in speed and therefore removing the water from a slide will decrease our speed
hiii can someone please help me with this thank u <//3
Answer:
7: B:
8: A:
9: D:
Explanation:
HOPE IT HELPS YOU!!
Answer:
7. (C) 12 m/s
8. (D) 44.1 m
9. (C) 9.8 m/s^2
Explanation:
8. y = -(1/2)gt^2
= -(1/2)(9.8 m/s^2)(3 s)^2
= -44.1 m
This means the ball traveled 44.1 vertically downwards.
please help
a girl pulls a wheeled suitcase with a force of 3N. If the suitcase has a mass of 6 kg, what is the acceleration?
Explanation:
Start with what you know and list your knowns and unknowns
F = ma
F= 3N
m = 6kg
a =?
3N = 6kg x a
solve for a
3N / 6kg = a
A rocket blasts off from Earth with an initial
acceleration of 18.2 m/s2. A 75.0 kg astronaut
is inside. What is the normal force of the
astronaut's chair on the astronaut?
S
[?]N
Explanation:
apparent apparent weight is how hard astronaut pushes against it which is the normal force
n m a y + mgm open parenthesis y + and close parenthesis and = m open parenthesis a y + and so i need the acceleration of the astronaut since initial velocity is 0 and yby over l 45 m per second over 15 x 30.0 m m per second squared
If a red star and a blue star both have the same radius and both are the same distance from Earth, which one looks brighter in the night sky? Explain why.
Answer:
The blue one.
Explanation:
Im pretty sure its because the blue is hotter.
A horizontal, uniform board of weight 125 N and length 4 m is supported by vertical chains at each end. A person weighing 500 N is hanging from the board. The
tension in the right chain is 250 N.
Which of the following describes where the person is hanging?
Answer:
let Tension in the left chain is F
here, Fnet = 0
⇒F - 500N + 250 N - 125 N = 0
⇒F - 375 N = 0
⇒F = 375 N
let r from the left end of the board is the person sitting.
now torque at left end, τ = 0.
⇒375 × (0) - 500N × (r) + 250N × (4m) - 125 N × (2m) = 0
⇒0 - 500r + 1000 - 250 = 0
⇒750 = 500r
⇒r = 750/500 = 1.5 m
Explanation:
Can you please give this answer a brainliest answer please
If a sled has a mass of 4kg what is the force of gravity on the sled?
Answer:
Explanation:
Gravity pulls everything down at the same rate of 9.8 m/s/s. If you're looking for the normal force, which is the same as the weight of the object, we'll find that, just in case.
w = mg which says that the normal force/weight of an object is equal to its mass times the pull of gravity:
w = 4.0(9.8) so
w = 39N
Answer this Science question NO LINKS !!!!
The electric force between two charges increases when
A) both charges become negative
B) both charges become positive
C) the charges get closer together
D) the charges get further apart
Answer:
the charges get closer together
Who's Buzz Aldrin?
______________
Answer:
Buzz Aldrin was American astronaut, engineer and fighter pilot. he did three spacewalks as pilot of the 1966 Gemini 12 mission, and as the lunar modulbe pilot on the 1969 Apollo 11 mission, he and mission commander Neil Armstrong were the first two people to land on the Moon.
I hope it helps
have have a great day
I have no idea so i'm screwed please help me
Beryllium-11 has a half-life of 13.81 s. What percent of the initial sample will remain aft er 30.0 s?
Answer:
Let N0 be the initial atoms of Be11
N0 / 2^1 = N0 / 2 Number of Be11 after 1 half-life
N0 / 2^2 = N0/ 4 Number of Be11 after 2 half-lives
30/13.81 = 2.17 half lives
N0 / 2^2.17 = N0 / 4.51 = .222 N0 or 22.2 % of atoms remain
The percentage of the initial sample that will remain after 30.0 s is 22.2 % of atoms remain.
What is half-life?A half of existence is the duration required for something to reduce in size by half. The phrase is most frequently used in reference to radioactive decay, which takes place as unstable atomic particles weaken. There are 29 known factors that can operate in this way.
Every chemical has a unique half-life. Since carbon-10, for instance, has a half-life of only 19 seconds, it is impossible for this isotope to be found in nature.
Let No of the initial atoms of Beryllium-11
No / 2¹ = N0 / 2 Number of Be11 after 1 half-life
No / 2² = N0/ 4 Number of Be11 after 2 half-lives
30 / 13.81 = 2.17 half lives
No / 2²·¹⁷ = N0 / 4.51 = .222 N0 or 22.2 % of atoms remain
Therefore, the percentage of the initial sample will remain after 30.0 s is 22.2 %.
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(reply with an answer to the question or get reported) Please solve it with the steps ty
Answer:
vertical force=50
horizontal force=35
A truck starts from rest with an acceleration of 0.3 m/ S^2 find its speed in km/h when it has moves through 150 m
Answer:
v = 34.128 km/hr
Explanation:
Given that,
The initial speed of a truck, u = 0
Acceleration of the truck, a = 0.3 m/s²
Distance moved, d = 150 m
Let the final speed of the truck is v. Using third equation of motion i.e.
[tex]v^2-u^2=2ad\\\\v=\sqrt{u^2+2ad}[/tex]
Put all the values,
[tex]v=\sqrt{0^2+2\times 0.3\times 150}\\\\v=9.48\ m/s[/tex]
or
v = 34.128 km/h
So, the final speed of the truck is equal to 34.128 km/h.
How far will a brick starting from rest fall freely in 3 seconds
Answer:
When object falls freely we can say
its initial speed will be ZERO
and its acceleration due to gravity must be
a = g = 9.8 m/s^2a=g=9.8m/s2
Now we need to find the distance of free fall in 3 s of time
So here we will use kinematics
y = v* t + \frac{1}{2} at^2y=v∗t+21at2
now we will plug in all values in it
y = 0 + \frac{1}{2}* 9.8 * 3^2y=0+21∗9.8∗32
y = 44.1 my=44.1m
So it will fall by total distance of 44.1 m
There are six important things to keep in mind on your fitness journey. Please list and define at least four of the things we should remember.
Read the following lines from The Call of the Wild .
He was surprised at the eagerness which animated the whole team and which was communicated to him; but still more surprising was the change wrought in Dave and Sol-leks. They were new dogs, utterly transformed by the harness… The toil of the traces seemed the supreme expression of their being, and all that they lived for and the only thing in which they took delight.
Cite the quotation that best supports Buck's observation that the other dogs actually enjoy the harness.
"He was surprised at the eagerness which animated the whole team and which was communicated to him..."
"...but still more surprising was the change wrought in Dave and Sol-leks. They were new dogs, utterly transformed by the harness…"
"...still more surprising was the change wrought in Dave and Sol-leks."
"The toil of the traces seemed the supreme expression of their being, and all that they lived for and the only thing in which they took delight."
hey I read it do you use there a pacific question you want me to answer or something?
Answer:
I also recently read Call of the Wild for school and it was a great book.
Explanation:
Please help me to solve this, I don’t really know what to do.
A device requires 5 amps to operate properly.
What total resistance is needed in order to obtain 5 amps when 110 volts is applied across a circuit?
If the device has a resistance of 8 ohms, what additional resistor needs to be added to the circuit and how should the resistor and device be hooked up?
Explanation:
Use Ohm's Law
V / R = I
I = 5A
V = 110V
R =?
Solve for R
if you need further help let me know
what do you mean by work?
Work is transfer of energy in an object when it travel some distance by external force,
Work= force × displacement
A spring is hung from the ceiling. A 0.442-kg block is then attached to the free end of the spring. When released from rest, the block drops 0.150 m before momentarily coming to rest, after which it moves back upward. (a) What is the spring constant of the spring
Answer:
[tex]K=58.8N/m[/tex]
Explanation:
From the question we are told that:
Mass [tex]M=0.442[/tex]
Drop distance [tex]d=0.150[/tex]
Generally the equation for Spring Constant is mathematically given by
[tex]K=\frac{2mg}{x}[/tex]
[tex]K=\frac{2*0.442*9.8}{1.150}[/tex]
[tex]K=58.8N/m[/tex]
ayuda porfa es de actividades fisicas
Translate to English please
The blank
is the organ responsible for cleaning a person's blood.
If person A weights less then Person B, and they both push away from each other with 10N of force *
Answer:
The system will tend to person A
Explanation:
A force is defined as either a pull or a push, in this scenario person A weighs lass that person B, so the resultant effect of the 10N interactive force will tend towards person A.
This is solely because person A is less than person B in weigh