Answer:
Explanation:We should know that weight = mass * gravity.
That is weight equals mass times gravity.
Gravity is a force of attraction between any two bodies in the universe. It is directly proportional to product of their masses and inversely proportional to the square of the distance between them.
Gravity is generally measured in terms of acceleration due to gravity, denoted as g. For Earth it is, 9.8 m/s². And for moon, it is about 1.62 m/s².
On Earth, your weight is 70 kg = W
W = mass x 9.8
70 = mass x 9.8
Your mass is 70/ 9.8
i.e approximately 7.14
Weight at the Moon, W' = 7.14 x 1.62
Hence, your weight on the surface of the moon is just 11.56 kg.
Congratulations, you've lost about 58.14 kilograms without any hard exercise. And you're as light as a Sweedish Vallhund! Cheers!
A 600 kg elevator initially moving upward undergoes motion represented by the
velocity vs time graph shown. Calculate the force of tension supporting the
elevator. (Enter your answer as four significant figures without units or spaces.
Ex) If the force=1598.3 N enter "1598") *
velocity
(m/s)
7
6
ET
5
4
3
2
1
time
(5)
0
1
2
3
4
5
6
7
The force of tension supporting the elevator is 400.0 N
To find the force of tension supporting the elevator, we need to find the acceleration of the elevator from the gradient of the graph.
So, a = Δv/Δt = (v₂ - v₁)/(t₂ - t₁) where v₁ = 2 m/s, t₁ = 0 s, v₂ = 6 m/s and t₂ = 6 s
So, a = (6 m/s - 2 m/s)/(6 s - 0 s)
a = 4 m/s ÷ 6 s
a = 2/3 m/s²
a = 0.67 m/s²
So, the force of tension on the elevator, T = ma where m = mass of elevator = 600 kg and a = acceleration of elevator = 2/3 m/s².
So, T = ma
T = 600 kg × 2/3 m/s²
T = 400 N
So, the force of tension supporting the elevator is 400.0 N
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Why does plasma challenge what we know about matter? How does it confirm what we already know?
Being made of charged particles, plasmas can do things gases cannot, like conduct electricity. And since moving charges make magnetic fields, plasmas also can have them. In an ordinary gas, all the particles will behave roughly the same way. Auroras, lightning, and welding arcs are also plasmas; plasmas exist in neon and fluorescent tubes, in the crystal structure of metallic solids, and in many other phenomena and objects. The Earth itself is immersed in a tenuous plasma called the solar wind and is surrounded by a dense plasma called the ionosphere.
Plasma is a type of matter in which many electrons freely roam around the nuclei of atoms.
What is plasma?Although plasma is commonly thought of as a subset of gases, the two states behave very differently. Plasmas, like gases, have no definite shape or volume and are denser than solids or liquids.
Plasma is a sort of matter in which numerous electrons freely roam around the nuclei of atoms.
Plasma has been described as the fourth state of matter, alongside solid, liquid, and gas.
Normally, electrons in a solid, liquid, or gaseous sample of matter remain bound to the same nucleus.
Thus, plasma is considered a distinct phase because it does not conform to the standard descriptions and physical laws that are used to describe the standard three states of matter.
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what is the dissolving substance in a solution? A.)particles B.)solute C.)solvent D.)water
Answer:
b.Solute
Explanation:
The substance being dissolved is called the solute and the liquid doing the dissolving is called the solvent. In order for a substance to dissolve, the molecules of the solute need to interact with the molecules of the solvent.
An object has a mass of m and a weight of w moon whole it is on the moon where the acceleration due to gravity is 1.6mls 2 what will be the weight of the object when it is brought to the earth
Answer:
calculate with yhis formula "w=m×g
A weightlifter raises a 180-kg barbell to a height of 1.95 m. How much work is done by the weightlifter in lifting the barbells
P= 10m = 10 x 180 = 1800 N
work is done by the weightlifter in lifting the barbells :
A= Ph = 1800 x 1.95 = 3510 J
ok done. Thank to me :>
11 An aeroplane is travelling horizontally at a speed of 80 ms", and drops a crate of emergency supplies
(Figure 2.39). To avoid damage, the maximum vertical speed of the crate on landing is 20 ms.
You may assume air resistance is negligible.
80 ms
Figure 2.39 For End-of-chapter Question 11.
a Calculate the maximum height of the aeroplane when the crate is dropped.
b Calculate the time taken for the crate to reach the ground from this height.
• The aeroplane is travelling at the maximum permitted height Calculate the horizontal distance travelled
by the crate after it is released from the aeroplane.
12
12
a.
The maximum height of the aeroplane when the crate is dropped is 20.41 m
Using v² = u² - 2gs where u = initial vertical speed of crate = -20 m/s(since it is falling), v = final vertical speed of crate = 0 m/s (since it stops immediately it lands), g = acceleration due to gravity = 9.8 m/s² and s = maximum height of airplane when crate is dropped.
So, making s subject of the formula, we have
s = -(v² - u²)/2g
Substituting the values of the variables into the equation, we have
s = (v² - u²)/2g
s = -((0 m/s)² - (-20 m/s)²)/(2 × 9.8 m/s²)
s = -(-400 m²/s²)/(19.6 m/s²)
s = 400 m²/s²/19.6 m/s²
s = 20.41 m
So, the maximum height of the aeroplane when the crate is dropped is 20.41 m
b.
The time taken for the crate to reach the ground from maximum height is 2.041 s
Using v = u + gt where u = initial vertical speed of crate = -20 m/s(since it is falling), v = final vertical speed of crate = 0 m/s (since it stops immediately it lands), g = acceleration due to gravity = 9.8 m/s² and t = time taken for the crate to reach the ground from maximum height.
Making t subject of the formula, we have
t = (v - u)/g
Substituting the values of the variables into the equation, we have
t = (v - u)/g
t = (0 m/s - (-20 m/s))/9.8 m/s²
t = (0 m/s + 20 m/s))/9.8 m/s²
t = 20 m/s/9.8 m/s²
t = 2.041 s
So, the time taken for the crate to reach the ground from maximum height is 2.041 s
c.
The horizontal distance travelled by the crate after it is released from the aeroplane is 163.27 m
Since the horizontal velocity of the crate is the horizontal velocity of the crate, we calculate the horizontal distance the crate travelled after it is released from the aeroplane.from
d = Vt where V = horizontal velocity of crate = 80 m/s and t = time taken for crate to drop from maximum height = 2.041 s.
So, substituting the values of the variables into the equation, we have
d = Vt
d = 80 m/s × 2.041 s
d = 163.27 m
So, the horizontal distance travelled by the crate after it is released from the aeroplane is 163.27 m
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A star with a mass like the Sun which will soon die is observed to be surrounded by a large amount of dust and gas -- all material it has expelled in the late stages of its life. If astronomers want to observe the radiation from such a giant star surrounded by its own debris, which of the following bands of the spectrum would be the best to use to observe it?
a. gamma-rays
b. x-rays
c. ultraviolet
d. infrared
e. very long wavelength radio waves
Answer: D. Infrared
Infrared is the best way to observe it.
Around age 60, Alex's lens entirely lost its capacity to adjust to objects at varying distances. Alex has a condition called
There are various conditions usually associated with the eyes. Most are eye defects and this include, glaucoma, presbyopia, myopia, hypermetropia and the likes.
Around age 60, Alex's lens entirely lost its capacity to adjust to objects at varying distances developing the presbyopia condition.
Presbyopia is a genetic condition that affects the eye. It is also an age-related condition. In this case, the eye lens cannot change its shape easily as compared to when young. It occurs when the eye lose its ability to focus on objects at various distance producing blurry images.Learn more about presbyopia: https://brainly.com/question/24303969
What is the period of an object that makes 20 revolutions a minute?
Is it 4 seconds or is it 5 seconds or is it 2seconds or is it 3 seconds?
Answer: 3 seconds
Explanation: I hope this helps!
There are normally two types of common cables in your home. Explain why the cables have 2 or 3
wires inside. Why is there not only one?
Answer:
it's because every wire is different and the insides of it are possitive and negative
Explanation:
hope my answer is correct
where is an electron located within an atom
Answer: in the cloud around the nucleus.
Explanation:
got it right
Given the mass of the yo-yo is m and the length of the string (radius of the circle traced by the yo-yo) is L, you find the moment of inertia to be I. If you double the length of the string, what is the new moment of inertia
I need some help with this
It is B: low precision,low accuracy
Explanation:
Have a great day =)
Can you answer it for me pls
Answer:
the answer is b. because liquid always bubble when boiling
please answer quick, i’ll give brainliest!
Answer:
3 seconds
Explanation:
30/10=3
The photo shows a skateboarder pushing her foot against the ground as she rides down a hill. How does this action cause the skateboarder's speed to change?
OFFERING BRAINLIEST PLS RESPOND ASAP
science
Answer:
it increases the net force pointing down the hill, so she speeds up
Explanation:
Science 6.4.2
Shortlest wavelength?
What is the average speed of an object that travels 6 meters in 2 seconds and then travels 3 meters in 1 second?
Answer:
3 m/s
Explanation:
Average Speed = [tex]\frac{Total Distance}{Total time}[/tex]
Plug in the numbers, it will be (6m + 3m) divided by (2s + 1s), which is 9m/3s, which equals to 3m/s.
what color of light does a low-pressure sodium street lamp give off?
Answer:
Yellow Light
Explanation:
Low-pressure sodium lamps gives of a yellow/orange light/glow. Which can also be said as monochromatic yellow light. Because they only produce a single wavelength of yellow light, which results in a less intense light output.
Hopefully this is right! :D good luck
it took David 2 seconds to lift a 5 Newton bag of toys from the floor to the top of the top shelf, which is 3 meters tall. How much power did David use?
A. 3.3 W
B. 6.1 W
C. 7.5 W
D. 14 W
A bumper car with a mass of 86 kg is traveling at 3.6
m/s. A bumper car with a mass of 98 kg is traveling at
1.6 m/s in the opposite direction. After the collision, the
86 kg bumper car travels at -0.5 m/s. What is the speed
of the 98 kg bumper car after the collision?
Answer:
2.0 m/s
Explanation:
i found it on quizlet
a car is moving at a constant speed of 100 miles per hour for 2 hour. how far does the car travel?
a. 200 miles
b. 100 miles
c. 2 miles
d. 50 miles
Answer: a) 200 miles because your doing 2 hours and each hours is 100 miles :)
EASY 35 POINTSSSSS PLSSSSSSSS
i just need notes on food weds so what ever u find just put on the answer
Answer:
the predator or tertiary consumer is not eaten except by saprophytes and maybe vultures, feeding starts from the green plants or producers going through a complex energy transfer
PLEASE HELP ASAP! WILL GIVE BRANLIEST! Pay attention to what happens to the things around you as you go about your day. Describe three examples of Newton’s third law in action. In your examples describe the action and the equal and opposite reaction.
Answer:
jumping, pulling a elastic band, bouncing a ball
Explanation:
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.
When we pull an elastic band, it automatically returns to its original position. The more you pull the more force it generates. This is the same when you pull or compress a spring. The action (applied force) is stored as energy and is released as a reaction with an equal and opposite force
A ball is able to bounce because of the reaction from the ground. If there was no reaction then the ball would not bounce but rather stick to the ground.
Can anyone help with this?
Answer:
Answer:
1. Object
2. Sink
Explanation:
Step-by-step explanation:
1.5 < 1, the object is denser than the fluid
When an object is denser than a fluid it is submerged in, the object will sink.
The state in which the inside of each heart cell is negatively charged and the outside is positively charged is:
Answer:
Resting state
Explanation:
An airplane flying at a velocity of 610 m/s lands and comes to a complete stop over a 53 second
period of time.
a. Did this airplane speed up or slow down?
Answer:
The plane slowed down
Explanation:
To come to a complete stop you must slow down until you stop...
Also the airplane has an acceleration of -11.5 m/s if you need that.
As galáxias são maiores do que os enxames de estrelas?
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Responder \;\;a}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
As galáxias são geralmente maiores do que os aglomerados de estrelas. Como disse Geller ~ As galáxias são como as cidades em que vivem os aglomerados de estrelas. As galáxias podem ter cerca de milhares ou mais aglomerados de estrelas ~
I hope it helps ~
the heat of combustion of ethane, c2h6, is 1560 kj/mol. what is the heat of combustion of ethane, in kj per gram?
Answer: 52 kj/gm
Explanation:
the heat of combustion of ethane, c2h6, is 1560 kj/mol. what is the heat of combustion of ethane, in kj per gram?
ethane is C2H6 and has a molecular mass of (2X12) + (6X1) = 30m
1 mole of ethane = 30 gmsso
1560 kj/moe = 1560 kj/30gm =
52 kj/gm
I'm very confused. Thanks for whoever helps me :)
