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wlad13 [49]
4 years ago
8

I'm doing something for science but I'm not sure how to answer these questions.

Physics
1 answer:
Tomtit [17]4 years ago
5 0

1,  yeti hair is thick and strong

2, a warm blanket and a change of clothes

3, to circulate the heat around the house/room

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The number density of gas atoms at a certain location in the space above our planet is about 1.05 × 1011 m-3, and the pressure i
Anettt [7]

To solve this problem we will apply the concepts given by the ideal gas equation, which mathematically can be described as

PV = NkT

Here

P = Pressure

V = Volume

N = Number of atoms of molecules

k = Bolzmann constant

T = Temperature

Rearranging to find the temperature we have

T = \frac{PV}{Nk}

Since the value given in the exercise is a unit of atoms per volume, we will readjust the equation like this

T = \frac{P}{\frac{N}{V}k}

Replacing we have,

T = \frac{(2.7*10^{-10}N/m^2)}{(1.05*10^{11}/m^3)(1.38*10^{-23}J/K)}

T = 186.3K

T = -86.81\°C

Therefore the temperature is -86.81°C or 186.3K

7 0
4 years ago
Water can exist in three states: solid (ice), liquid and gas (steam).In which state, or states, is the motion of the molecules o
bazaltina [42]

Answer:

solid

Explanation:

8 0
3 years ago
Read 2 more answers
A force of 166 N acts on a 7.05-kg bowling ball for .39 seconds . What is the bowling balls change in velocity
dimaraw [331]

Answer:

9.17 m/s

Explanation:

Impulse = change in momentum

FΔt = mΔv

(166 N) (0.39 s) = (7.06 kg) Δv

Δv = 9.17 m/s

4 0
3 years ago
Read 2 more answers
_____ is the densest planet. Mercury Venus Earth Mars
Orlov [11]
The answer is Venus, with the density of 5.204 grams per cubic centimeter
5 0
3 years ago
Chris shoots an arrow up into the air. The height of the arrow is given by the function h(t) = - 16t2 + 64t + 23 where t is the
Ghella [55]

Completing the square gives the answer right away.

-16t^2+64t+23=-16(t^2-4t)+23=-16(t^2-4t+4-4)+23=-16((t-2)^2-4)+23

\implies h(t)=-16(t-2)^2+87

which indicates a maximum height of 87 when t=2.

7 0
4 years ago
Read 2 more answers
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