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Travka [436]
3 years ago
10

A person would have a different weight on each planet. Arrange the planets in increasing order based on a person’s weight on the

planet.
Planet Gravity (m/s2)
Earth 9.8
Mercury 3.7
Neptune 11.2
Uranus 8.9
Physics
2 answers:
JulsSmile [24]3 years ago
8 0

Answer: Mercury<Uranus<Earth<Neptune

Explanation: Weight is the downward force acting on an object due to gravity.

w=m\times g

w= weight of an object

m= mass of object

g= gravity

As the person has a constant mass, the weight differs due to the value of gravity (g). The planet having highest gravity would make a person weigh the most.

As the value of gravity varies: Mercury (3.7)<Uranus(8.9)<Earth(9.8)<neptune(11.2),  the weight of the person varies in the same order: Mercury<Uranus<Earth<neptune.

Mars2501 [29]3 years ago
5 0
Mercury, Uranus, Earth, Neptune.

Hope this helps!
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tekilochka [14]
<span>In order to calculate an average, we should sum all numbers and divide them by quantity. Let’s work with qualifications first. Let’s say you got a 10 in 1 exam, then an 8 in 2 exams and a 4 in 2 exams. Your average will be: = (10*1+8*2+4*2) / 5 = 6.8 If 6 is the minimum, you will pass. There is another way to calculate this average: applying distributive property. = 10*1/5+8*2/5+4*2/5 = 6.8 Remember you can convert the fractions into equivalent fractions: 1/5 = 20/100; 2/5 = 40/100 = 10*20/100+8*20/100+4*20/100 = 6.8 We actually don’t have the number of atoms of each mass… we have the percentage instead! So we need to learn this last method for atoms. Let’s go back to our atoms problem: 73.71 % of atoms have a mass of 27.98 u 14.93 % of atoms have a mass of 28.98 u 11.36 % of atoms have a mass of 29.97 u So let’s put that in the formula: Average mass = 27.98 u*73.71 /100 + 28.98 u*14.93 /100 + 29.97u*11.36 /100 So what you have to know is that a percentage can be converted into a fraction, and you should work that fraction in order to find the average. We can make the calculus shorter putting 100 as the common denominator: Average mass = (27.98 u*73.71 + 28.98 u*14.93 + 29.97u*11.36)/100 So actually we are taking the percentage as if it was the quantity, and 100 as if it was the total (the total of all percentages is always 100). Maybe we don’t have 100 atoms, but it will be the same proportion anyway, whatever number we have! And here it is the result: Average mass = 28,36u </span>
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2 years ago
Paper clips and screws are can be picked up by a magnetic because they contain a high amount of ?
ch4aika [34]

Answer:

D

Explanation:

5 0
3 years ago
If a person weighs 90 N on Earth, and the gravitational acceleration due to the Moon's gravity is 1.62 m/s2, how much would the
SashulF [63]
He would be
(90/9.81)*1.62.
You do the math
4 0
2 years ago
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A dad pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 18 rpm,
puteri [66]

Answer:

F = 176.175 N

Explanation:

given,  

radius of merry - go - round = 2.7 m

mass of the disk = 800 kg  

speed of the merry- go-round = 18 rpm  

                                                 = 18 \dfrac{2\pi }{60}

                                                 = 1.88 rad/s

time = 13 s

mass of two children = 25 kg  

ω = ω₀ + α t

1.88 = 0 + α(13)

α = 0.145 rad/s²

we know

τ = I α

so,

I = \dfrac{1}{2}MR^2+ 2 MR^2  

I = \dfrac{1}{2}\times 800 \times 2.7^2+ 2\times 25\times 2.7^2

I = 3280.5 kg.m^2  

τ = I α

τ = 3280.5 x 0.145

τ = 475.67 N m

τ = F x r

475.67 = F x 2.7

F = 176.175 N

4 0
3 years ago
A block of lead with dimensions 2.0 dm x 8.0 cm x 35 mm, has a mass of 6.356 kg. calculate the density of lead in g/cm
insens350 [35]

First, let us calculate for the volume of the block of lead using the formula:

V = l * w * h

But we have to convert all units in terms of cm:

l = 2.0 dm = 20 cm

w = 8 cm

h = 3.5 cm

 

Therefore the volume is:

V = (20 cm) * (8 cm) * (3.5 cm)
V = 560 cm^3

 

Next we convert the mass in terms of g:

m = 6.356 kg = 6356 g

 

Density is mass over volume, so:

density = 6356 g / 560 cm^3

density = 11.35 g / cm^3     (ANSWER)

8 0
3 years ago
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