3 years ago

WHAT IS NUMBER OF TICKS? IN FINDING APPROXIMATE AREA OF YOUR PALM? IMPORTANT PLZ ANSWER QUICK

Physics

1 answer:

xeze [42]3 years ago

3 0

Answer:

idk

Explanation:

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You submerge 100 grams of steel in 200 grams of water. If the steel has an initial temperature of 90°C and the water has an init

Natalija [7]

Answer:

Q=cmΔT

Q1(steel)=Q2(water)

c1•m1• (t1-t) = c2•m2• (t-t2)

628•0.1•(80-t) = 4180•0.2• (t-10)

5024-62.8t = 836t -8360

5024+8360=(836+62.8)t

t=14.9°C

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3 years ago

Why is an air mass unlikely to form over the rocky mountains of north america?

Shkiper50 [21]

The mountains can and will block airflow from higher pressure systems that come in from a coast and won't combine to nake storms

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3 years ago

Bales of hay of 40 lbf move up a conveyor set at 30° angle to the ground. If the hay bales are moving at 1.5 ft/sec, determine t

jekas [21]

Answer:

The power required to move each bale is 30 lbf.ft/sec.

Explanation:

F= 40lbf * sin (30º)

F=20lbf

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P= 30 lbf.ft/sec

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4 years ago

What does the atomic number tell us about an atom of a certain element?

Setler79 [48]

It tells us the number of protons that are present in the nucleus, the positively charged region of that atom.

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3 years ago

A(n) 69.8 kg astronaut becomes separated from the shuttle, while on a space walk. She finds herself 60.4 m away from the shuttle

alukav5142 [94]

Answer:

The time taken is 6.7 min

Explanation:

Using the linear momentum conservation theorem, we have:

$m_1*v_{o1}+m_2*v_{o2}=m_1*v_{f1}+m_2*v_{f2}$

when she was 60.4m from the shuttle, she has zero speed, so the initial velocity is zero.

$m_1*0+m_2*0=m_1*v_{f1}+m_2*v_{f2}\\m_1*_{f1}=-m_2*v_{f2}\\v_{f1}=-\frac{m_2*v_{f2}}{m_1}\\\\v_{f1}=-\frac{0.886kg*12m/s}{69.8kg}\\\\V_{f1}=-0.15m/s$

That is 0.15m/s in the opposite direction of the camera.

the time taken to get to the shuttle is given by:

$t=\frac{d}{v_{f1}}\\\\t=\frac{60.4m}{0.15m/s}\\\\t=403s\\t_{min}=403s*\frac{1min}{60s}=6.7min$

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3 years ago