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3 years ago

11

plz halp! For the PV graph shown above, explain whether heat is added to the gas or removed from the gas during the process indi

cated in orange. To get full credit, you must explain your reasoning and justify your answer

1 answer:

Delicious77 [7]3 years ago

5 0

Answer:

There's no PV graph. kindly provide it so we help

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Which of the following expressions is equivalent to the expression 2(x + 5)? x + 7 x + 10 2x + 5 2x + 10

bezimeni [28]

Answer:

d) 2x+10

Explanation:

$2(x+5)\\=2x+10$

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4 years ago

In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 27

Vera_Pavlovna [14]

Answer:

9.74 x 10^7 m/s

Explanation:

V = 27000 V

energy of electrons = e x V

K = 1.6 x 10^-19 x 27000 = 43200 x 10^-19 J

Energy = 1/2 m v^2

43200 x 10^-19 = 0.5 x 9.1 x 10^-31 x v^2

v^2 = 9.495 x 10^15

v = 9.74 x 10^7 m/s

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4 years ago

Block A, with a mass of 6.0 kg, is sliding across a frictionless track at 65 m/s when it collides with Block B ( 9.0 kg) which i

Mars2501 [29]

The correct answer is a I hope that helped enjoy the rest of your weekend

3 0

3 years ago

A 1250 kg car is stopped at a traffic light. A 3550 kg truck moving at 8.33 m/s hits the car from behind. If bumpers lock, how f

Radda [10]

Answer:

the two vehicles will be moving at a speed of 6.16 m/s

Explanation:

This is a case of completely inelastic collision, therefore, the conservation of momentum can be written as:

$m_1\,v_1+m_2\,v_2=(m_1+m_2)\,v_f$

which given the information provided results into:

$m_1\,v_1+m_2\,v_2=(m_1+m_2)\,v_f\\(1250)\,(0)+(3550)\,(8.33)=(1250+3550)\,v_f\\29571.5=4800\,v_f\\v_f=6.16\,\,m/s$

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3 years ago

Why do herbivores of the Serengeti migrate year after year

galina1969 [7]

Answer:

The main reason is that very young calves are more noticeable to predators when mixed with older calves from the previous year

Explanation:

5 0

3 years ago

Read 2 more answers