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Sphinxa [80]
3 years ago
8

Need ur help,,, :-[ :-{...... ............ .. .. ​

Physics
1 answer:
SOVA2 [1]3 years ago
4 0

Answer:

Graph B express the magnetic relationship of magnetic flux and electronic flow

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(this is somehow part of my science unit, dont ask why)
nirvana33 [79]

Answer:

 Height of coffee mug = 5 cm

Explanation:

  Changing all the data given in to unit cm

              50 mm = 5 cm

              20 cm  = 20 cm

              8 m    = 800 cm

              0.1 km = 100 m = 10000 cm

Since we need to find the height of coffee mug, it's height will not be more than 10 cm.

  So 5 cm is the correct choice.

6 0
4 years ago
To what temperature will a 79.0 g piece of glass raise if it absorbs 9457 calories of heat and its specific heat capacity is 0.5
ruslelena [56]

Answer:

T_final = 279.4 [°C]

Explanation:

In order to solve this problem, we must use the following equation of thermal energy.

Q=m*C_{p}*(T_{f}-T_{i})

where:

Q = heat = 9457 [cal]

m = mass = 79 [g] = 0.079 [kg]

Cp = specific heat = 0.5 [cal/g*°C]

T_initial = initial temperature = 40 [°C]

T_final = final temperature [°C]

9457 = 79*0.5*(T_{f}-40)\\239.41=T_{f}-40\\\\T_{f}=279.4[C]

8 0
3 years ago
An automatic shotgun has a mass of 10 kg. It fires 30 g bullets at the rate of 6 bullets per second with a speed of 400 m/s. Wha
igomit [66]

Answer:72 N

Explanation: thats whats right

6 0
3 years ago
Which of the following can be done to demagnetize a permanent magnet?
ICE Princess25 [194]
Place the permanent magnet into an AC magnetic field and slowly reduce the field to 0 and the magnet will be temporarily demagnetized. 
6 0
4 years ago
Explain what cause air pressure in your own words. Why do aircraft need pressurized cabins?
Jobisdone [24]
Because the atsmosphere in the sky makes it less gravity so air craft needs these cabins
7 0
3 years ago
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