3 years ago

Is superman faster than flash?

Physics

2 answers:

Andreas93 [3]3 years ago

6 0

Answer:nope

Explanation:

murzikaleks [220]3 years ago

5 0

Is that a question out of curiosity?

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An iron cube has edge 15cm long at 20c .What will be? The new surface area of a face when the temperature rises to 80c

grigory [225]

Answer:

271cm^2

Explanation:

volume 1= 15^3 =3375

temp. 1. = 20+273 = 293

temp. 2. = 50+273 = 353

volume 2 =?

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v2 = v1 * t2 / t1

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4 years ago

A 2430 pound roller coaster starts from rest and is launched such that it crests a 105 ft high hill with a speed of 59 mph. The

Rudik [331]

Answer:

Explanation:

Given

Weight of roller coaster is $W=2430\ pound$

mass of roller coaster $m=\frac{W}{g}=\frac{2430}{32.2}=75.45$

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drag force $f_d=85\ pounds$

velocity at top $v=59 mph\approx 86.53\ ft/s$

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Conserving Energy at bottom and top

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3 years ago