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trasher [3.6K]
4 years ago
5

A runner accelerates to a velocity of 4.15m/s due west in 1.50 s. his average accelerates is 640m/

Physics
1 answer:
Ivanshal [37]4 years ago
7 0
Hxhrhevtehucvwduittushxgfvehxhxhdh
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According to Aristotle, how fast do heavy objects fall compared to light objects?
Studentka2010 [4]

Answer:

Hey

Your answer would be D (Aristotle stated that heavy objects fall faster than light objects). He thought be comparing a feather falling to a rock falling that you could see that heavier objects fall faster than light ones. of course now we know that all objects fall at the same speed and that weight does not affect that. only air drag affects how fast objects fall.

4 0
3 years ago
Suppose the average mass of each of 20,000 asteroids in the solar system is 1017 kg. Compare the total mass of these asteroids t
blondinia [14]

Answer:

The mass of the asteroids is 0.000334896182184 times the mass of the Earth.

39929.4542466 m

Explanation:

Total mass of the asteroids

m_a20000\times 10^{17}=2\times 10^{21}\ kg

m_e = Mass of Earth = 5.972\times 10^{24}\ kg

The ratio is

\dfrac{m_a}{m_e}=\dfrac{2\times 10^{21}}{5.972\times 10^{24}}\\\Rightarrow \dfrac{m_a}{m_e}=0.000334896182184

The mass of the asteroids is 0.000334896182184 times the mass of the Earth.

Volume is given by

V=\dfrac{m}{\rho}\\\Rightarrow \dfrac{4\pi}{3\times 8} d^3=\dfrac{m}{\rho}\\\Rightarrow d^3=\dfrac{3\times 8}{4\pi}\dfrac{m}{\rho}\\\Rightarrow d=(\dfrac{3\times 8}{4\pi}\dfrac{m}{\rho})^{\dfrac{1}{3}}\\\Rightarrow d=(\dfrac{3\times 8}{4\pi}\dfrac{10^{17}}{3000})^{\dfrac{1}{3}}\\\Rightarrow d=39929.4542466\ m

The diameter is 39929.4542466 m

6 0
3 years ago
Speed has what properties?
BlackZzzverrR [31]

Answer:

I think it's (C) magnitude and direction

Explanation:

scalar is only magnitude and no direction so that answer makes no since, and i would think speed can't go anywhere without direction so i think (C)

hope it's right

brainliest please

7 0
3 years ago
Read 2 more answers
Which of the following is not a part of a wave?
Alisiya [41]
B is the correct answer
y=Asin(wt-kx)
A=amplitude
f=frequency
x=wavelength
since refraction is not on the wave formula,then option B is the correct answer
5 0
3 years ago
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The lift took 5 seconds to arrive at the second floor. What was the power of lift?
Lubov Fominskaja [6]

Answer:

D

Explanation:

Sana maka tulong huhuhuhuh

8 0
3 years ago
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