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Setler79 [48]
4 years ago
5

If two objects at different temperatures are in contact with each other, what happens to their temperatures?

Physics
2 answers:
diamong [38]4 years ago
5 0
<span>If two objects at different temperatures are in contact with each other, heat flow occurs. The energy will always be transferred from the hotter one to the colder one.</span>
Anton [14]4 years ago
3 0

If u put a cold & hot together, the temp with start to even out to the same temp.


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What is the term to describe the rate of flow of electricity?
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The rate of flow of electric CHARGE past any point is described in the unit of electric CURRENT ... the Ampere.
7 0
3 years ago
What happens to the volume of an ideal gas as temperature drops
riadik2000 [5.3K]

Based on the ideal gas equation, the pressure (P), volume (V) and temperature (T) corresponding to n moles of an ideal gas are related as:

PV = nRT

where R = gas constant

Under conditions of constant pressure and  number of moles:

The volume is directly proportional to the pressure. Therefore, as the temperature drops the volume will also decrease.

V α T

This is also known as the Charles Law.

3 0
4 years ago
What is the sprinters output at 2.0 s, 4.0 s and 6.0 s?
kari74 [83]

A 59 kg sprinter, starting from rest, runs 47 m in 7.0 s at constant acceleration.?  

What is the sprinter's power output at 2.0 s, 4.0 s, and 6.0 s?  

Instantaneous Power is the force times velocity  

P = Fv  

Because the acceleration is constant, the force will be constant as well  

F = ma  

P = mav  

for constant acceleration, the velocity at each time is found using  

v = at  

P = ma(at) = ma²t  

find the acceleration using kinematic equation  

s = ½at²  

a = 2s/t²  

a = 2(47) / 7.0²  

a = 1.918 m/s²  

P(2.0) = 59(1.918²)2.0 = 434.25 W = 0.43 kW  

P(4.0) = 59(1.918²)4.0 = 868.51 W = 0.87 kW  

P(6.0) = 59(1.918²)6.0 = 1302.76 W = 1.3 kW  

I hope this helped.  


5 0
3 years ago
Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. A vending m
Igoryamba

Answer:

The percentage of legal quarters that will be rejected is 1.954 %.

Explanation:

Here we are required to find

P(X<5.48 or X>5.82)

We have μ = 5.67 and  σ = 0.07 where the range is between 5.48 and 5.82 we each z-score given by

z =\frac{x-\mu}{\sigma}

Therefore for 5.48 we have z_{5.48} = \frac{5.48 -5.67}{0.07} = -2.714

and for 5.82 we have   z_{5.82} = \frac{5.82 -5.67}{0.07} = 2.143

Therefore we have the area of interest on the normal distribution chart given by

P(Z<-2.714) + P(Z >  2.143) =  P(Z<-2.714) + (1 - P(Z <  2.143))

+  0.00336 + 1 - 0.98382 = 0.01954

= 0.01954 × 100 = 1.954 %

Therefore 1.954 percentage of legal quarters will be rejected.

3 0
3 years ago
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