Answer:
Mass, m = 0.06 kg
Explanation:
It is given that,
Heat absorbed by copper object is 1386 J
Initial temperature,
Final temperature,
Specific heat of copper, c = 385 J/kg C
We need to find the mass of the copper. The formula of specific heat is given by :
m is mass of copper
So, the mass of the copper is 0.06 kg.
Answer: 51
Explanation:
Given
Output is 23 V
The square armature side is
Magnetic field
Rate of revolution
Angular speed
Peak voltage is given by
So, there are approximate 51 loops
Answer:
Pressure = 20 MPa
Explanation:
Given:
Force acting on the shoe is,
Area of shoe on which the force acts is,
Now, first we convert the area into its standard unit of m².
We have the conversion factor as:
1 cm² =
Therefore, the area of shoe in square meters is given as:
Now, pressure on the shoe is given as:
Plug in 100 N for 'F', for 'A' and solve for 'P'. This gives,
Now, we know that,
Therefore, the pressure acting on the shoe is 20 MPa.
This is honestly not something I’ve learned. The answer is something I don’t know.
Answer:
sunspots are storms on the Suns surface
Sunspots are marked by intense magnetic activity
Sunspots produce solar flares and hot gassy ejections.
Sunspots can affect Earth’s climate.
Explanation:
I just did this lesson