shikiaanthony

29.08.2019 • 

Physics

1. if a gallon of milk and a cup of milk are both at 8°c, the of the gallon is higher.
potential energy
heat content
temperature
kinetic energy
2. as the vibration of molecules increases, the of the substance increases.
temperature
internal energy
kinetic energy
all of the above
3. an indirect measurement of the speed of molecules is
heat flow
temperature
friction
energy
4.how many calories are absorbed by a copper spoon with a mass of 200 grams as it changes from 28°c to 33°c?
0.00027
3
90
13,000
5. 5.25 calories are absorbed by an iron nail. how many joules is this?
1.07
9.43
12.6
21.9
6. the specific heat capacity of aluminum is 0.22 cal/g°c. how much energy needs to flow into 20.0 grams of aluminum to change its temperature by 15°c?
0.017 cal
0.29 cal
66 cal
1363 cal

Ответ:

Mendi1026

01.01.2022

Physics

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The heat content  of the gallon is higher i just answered this on Odysseware and got it correct

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Ответ:

cece4649

01.01.2022

Physics

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Hello there.

6. The specific heat capacity of aluminum is 0.22 cal/g°C. How much energy needs to flow into 20.0 grams of aluminum to change its temperature by 15°C?

1363 cal

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Ответ:

lizzieee51

01.06.2023

Physics

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Option A

Explanation:

An electric force is a charged reaction that causes an attraction or a repulsion between two charged objects. In this case rubbing a glass rod with wool charges up the rod which then turns it into magnetic, which attracts the paper scraps from the ground to the rod where it sticks. The best answer is option A or "Pam rubs a glass rod with wool, then moves the rod over a pile of small paper scraps. The scraps leap into the air and stick to the rod."

Hope this helps.

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