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frutty [35]
3 years ago
10

How can you best identify quackery in a health service provider?

Physics
1 answer:
mel-nik [20]3 years ago
3 0

Answer:

C. The provider's success claims seem too good to be true.

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4.2 mol of monatomic gas A interacts with 3.2 mol of monatomic gas B. Gas A initially has 9500 J of thermal energy, but in the p
Komok [63]

Answer:

14657.32 J

Explanation:

Given Parameters ;

Number of moles mono atomic gas A ,   n 1  =  4 .2 mol

Number of moles mono atomic gas B ,   n 2  =  3.2mol

Initial energy of gas A ,   K A  =  9500  J

Thermal energy given by gas A to gas B ,   Δ K  =  600 J

Gas constant   R  = 8.314  J / molK

Let  K B  be the initial energy of gas B.

Let T be the equilibrium temperature of the gas after mixing.

Then we can write the energy of gas A after mixing as

(3/2)n1RT = KA - ΔK

⟹ (3/2) x 4.2 x 8.314 x T = 9500 - 600

T = (8900 x 3 )/(2x4.2x8.314) = 382.32 K

Energy of the gas B after mixing can be written as

(3/2)n2RT = KB + ΔK

⟹ (3/2) x 3.2 x 8.314 x 382.32 = KB + 600

⟹ KB = [(3/2) x 3.2 x 8.314 x 382.32] - 600

⟹ KB = 14657.32 J

6 0
3 years ago
A cannonball is launched from the ground at an angle of 30 degrees above the horizontal and a speed of 30 m/s. Ideally (no air r
ICE Princess25 [194]
B is the answer please mark brainliest
6 0
3 years ago
Read 2 more answers
?
vovangra [49]
Can you please post the picture of the graph and i will gladly answers it.
8 0
3 years ago
Read 2 more answers
11. What are the units for acceleration?​
Monica [59]

Answer:

Acceleration (a) is defined as the rate of change of velocity. Velocity is a vector quantity, and therefore acceleration is also a vector quantity. The SI unit of acceleration is metres/second2 (m/s2).

5 0
3 years ago
A mouse climbs 5m directly up a tree and then 3m to the right on a tree limb. What are the
BigorU [14]

Answer:

d = (3 i + 5 j) 3 [m] x-distance and 5 [m] y-distance

Explanation:

We can find the displacement if we use a diagram with the cartesian coordinates of the displacement of the mouse.

In the attached image we can see each of the vectors and the origin where the mouse was in the initial position and then the final position after the mouse moved to the right.

So the mouse moved 3 meters to the right and 5 meter upward.

7 0
3 years ago
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