3 years ago

A baker uses a balance to weigh out some ingredients to make bread.

Physics

1 answer:

Natasha2012 [34]3 years ago

7 0

The Answer is C………
because it is.

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A 70-kg astronaut (including spacesuit and equipment) is floating at rest a distance of 13 m from the spaceship when she runs ou

Keith_Richards [23]

Answer:

Explanation:

mass of the astronaut including the spacesuit, $M=30$

distance of astronaut from the spaceship, d = 13 m

mass of the oxygen tank, m = 3 kg

Speed of tank with respect to spaceship, $v=15~m/s$

Using the conservation of linear momentum:

total momentum before collision = total momentum after collision

$M.u=m.v+(M-m)v'$

$0=3\times 15+(70-15)\times v'$

$v'=0.82~m/s$

She mush hold her breath until she reaches the spaceship, i.e.

$t=d/v'$

$t=13/0.82$

$t=15.89~s$

4 0

3 years ago

Using your best estimates, how many times would you have to slap a 1 kg rotisserie chicken in order to cook it? You can assume t

FromTheMoon [43]

Answer:

n= 16021.03 slaps

Explanation:

Using law of Energy conservation

E_{thermal}= Kinetic energy of hand

⇒ $mc\Delta T= n\frac{1}{2}m_hv_h^2$

m_h= mass of the hand = 0.4 kg

v_h= velocity of the hand = 10 m/s

n= number of slaps

c= 4180 J/Kg °C

m= mass of chicken = 1 kg

Assuming all the energy of hand goes into chicken

Given Ti=0°C and T_f= 170 F= 76.66°C

Now putting the values in above equation to get n

$1\times4180(76.66)= n\frac{1}{2}0.4\times10^2$

n= 16021.03 slaps

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3 years ago

Question 2 (2 points) Practice tests are available online. True False K12

Reil [10]

True usally quizlet teachers get there work from there

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4 years ago

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nevsk [136]

None of the above, nothing is there

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3 years ago

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A train travels 94 kilometers in 2 hours, and then 58 kilometers in 4 hours what is it's average speed

Alisiya [41]

The answer to your question 25.333333333

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4 years ago