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Levart [38]
3 years ago
6

A constant force of 5.00 N acts on a 2.50 kg object for 10.0 s. What are the changes in the object’s momentum and velocity?

Physics
1 answer:
dimulka [17.4K]3 years ago
7 0
Hope this answer helps, cause Idk, I might be wrong, but I still, I used the correct formulas, so I might be correct

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Biodiesel is a type of fuel that can be made from animal fat. During production, animal fats and alcohol chemically react to pro
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Answer:

Biodiesel is considered a renewable energy source because it is made with animal fat

Explanation:

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I place an ice cube with a mass of 0.223 kg and a temperature of −35◦C is placed into an insulated aluminum container with a mas
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To solve this problem it is necessary to use the calorimetry principle. From the statement it asks about the remaining ice, that is, to the point where the final temperature is 0 ° C.

We will calculate the melted ice and in the end we will subtract the total initial mass to find out how much mass was left.

The amount of heat transferred is defined by

Q = mc\Delta T

Where,

m = mass

c = Specific heat

\Delta T =Change in temperature

There are two states, the first is that of heat absorbed by that mass 'm' of melted ice and the second is that of heat absorbed by heat from -35 ° C until 0 ° C is reached.

Performing energy balance then we will have to

Q_i-E_h = Q_m

Where,

Q_ i= Heat absorbed by whole ice

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m_i*c_i \Delta T +m*L_f  = (m_wc_w+m_{al}c_{al})\Delta T

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0.223*2108(-(-35))+m*3.34*10^5 = (0.452*4186+0.553*902)(27-0)

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m = 0.144Kg

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m' = 0.223-0.144

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