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mars1129 [50]
2 years ago
12

Can someone help me with 45a-g and 46?

Physics
1 answer:
LUCKY_DIMON [66]2 years ago
7 0

Idk but it must be hard tho

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In a very busy off-campus eatery one chef sends a 235-g broccoli-tomato-pickle-onion-mushroom pizza sliding down the counter fro
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Answer:

0.47922 kgm/s and will move right to left

Explanation:

m_1 = Mass of broccoli-tomato-pickle-onion-mushroom pizza = 235 g

m_2 = Mass of veggieburger-on-a-bun = 351 g

v_1 = Velocity of broccoli-tomato-pickle-onion-mushroom pizza = 1.65 m/s

v_2 = Velocty of veggieburger-on-a-bun = -2.47 m/s

Left to right is considered positive direction and the opposite is negative direction

Net momentum is

p=m_1v_1+m_2v_2\\\Rightarrow p=0.235\times 1.65+0.351\times -2.47\\\Rightarrow p=-0.47922\ kgm/s

The combined dish has a momentum of 0.47922 kgm/s and will move right to left

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3 years ago
The observation that energy transformations are rarely 100% efficient is seen by scientists as a violation of the Law of Conserv
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l

Explanation:

6 0
3 years ago
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Two moles of He gas are at 25 degrees C and a pressure of 210 kPa. If the gas is heated to 48 degrees C and its pressure reduced
SpyIntel [72]

Answer:0.0686 m^3

Explanation:

Given

No of moles=2

T=25^{\circ}\approx 298 K

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T_2=48 ^{\circ}\approx 321 k

P_2=77.7 KPa

PV=nRT

Substitute

77.7\times V_2=2\times 8.314\times 321

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3 years ago
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The rate at which an object covers distance, without worrying
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When the direction is also given, then you have the object's VELOCITY.


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"velocity" is not just a fancy word for speed that you use when you
want to sound smart.  There's actually an important difference between
'speed' and 'velocity'.
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3 years ago
13. Describe the molecules of a solid in terms of kinetic energy.
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The kinetic molecular theory of matter states that: ... Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy. The temperature of a substance is a measure of the average kinetic energy of the particles.
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