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Lisa [10]
3 years ago
5

Brass is an alloy made from copper and zinc. A 0.59 kg brass sample at 90.0 C is dropped into 2.80 kg of water at 5.0 C. If the

equilibrium temperature is 6.8C, what is the specific heat capacity of brass?
Physics
1 answer:
Julli [10]3 years ago
6 0
 <span>Since no heat is lost to the surroundings, the change in thermal energy of the brass piece and the water sample have have the same magnitude: 

m_brass ∙ c_brass ∙ ∆T_brass = m_water ∙ c_water ∙ ∆T_water 

=> 

c_brass = c_water ∙ (m_water/m_brass) ∙ (∆T_water/∆T_brass) 
= 4186J/kg°C ∙ (2.8kg/0.59kg) ∙ ((6.8°C - 5°C) / (98°C - 6.8°C)) 
= 392J/kg </span>
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What social science, which deals with the behavior and thinking of organisms, differs from sociology primarily in that it focuse
Svetlanka [38]

Answer : The correct answer is- Psychology.

As per the American Psychological Association, psychology can be described as the scientific study of mind and behavior of a particular individual.


There are primarily four goals of psychology that are to describe, to explain, to predict, and to control the  mental processes as well behavior of a person.

On the contrary, sociology focuses on behaviour of group of individuals. It is the study of structure, function as well as development of society.


Thus, psychology is the right answer to the question.

5 0
4 years ago
Read 2 more answers
The diameter of an automobile tire is closest to
slamgirl [31]

Answer:

(1)  10^−2 m

Explanation:

The diameter of the tire of an automobile is generally expressed in centimetres; we can say that the diameter of a tire is generally about

d = 20 cm (20 centimetres)

Now we have to verify which option is closest to this value. To do that, we have to keep in mind the equivalence between metres and centimetres; in fact, we have:

1 cm = 10^{-2} m

This means that we can rewrite the diameter of the tire of a car as

d=20 cm = 20\cdot 10^{-2} m

By comparing it with the given options, we see that the closest option is

(1)  10^−2 m

which is therefore the correct answer.

6 0
4 years ago
CAN ANYONE HELP PLEASE I NEED THIS DONE BY TODAY!! I WILL MARK YOU BRIANLYIST.
bulgar [2K]
I have no idea my dude sorry
7 0
3 years ago
How much work does and elephant do pulling a circus wagon 1000m with<br> an applied force of 200 N?
RideAnS [48]

Answer:

2000000 J

Explanation: Multiply 200 N by 1000 m

8 0
3 years ago
The speed of sound in air at room temperature is about s=343 m/s. calculate this speed in miles per hour (mph). (1 mi = 1609 m.)
igor_vitrenko [27]
Given:
1 mi = 1609 m.

Also,
1 hour = 3600 s

Therefore
343 \,  \frac{m}{s} =(343 \,  \frac{m}{s} )*(3600 \,  \frac{s}{h}) *( \frac{1}{1609}\, \frac{mi}{m})=  767.433 \,  \frac{mi}{h}

Answer: 767.4 mph (nearest tenth)
5 0
4 years ago
Read 2 more answers
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