Answer:
The average emf induced in the coil is .
Explanation:
Given that,
Number of turns = 1000 turns
Area = 85 cm²
Time = 0.090 s
Its plane is perpendicular to Earth's magnetic field.
Angle = 0°
Magnetic strength
We need to calculate the magnetic flux
Using formula of magnetic flux
Put the value into the formula
We need to calculate the average emf induced in the coil
Put the value into the formula
Hence, The average emf induced in the coil is .
Specific heat capacity= m c Δ t
= 20 * 0.11* (75-25)
= 20* 0.11* 50
= 110 calories.
Answer:
1200N
Explanation:
Suppose a body of mass "m" and its weight on the moon is Wm (where W is the weight and "m" is the moon ;which means weight on the moon).Mass of the moon is "M"
and its radius is "R"
Weight of an object on the moon = "F"(Force)with which the moon pulls.
Wm = GM*m/r2
Weight of the same object on the earth is We(where W is the weight and "e" is the earth; which means weight on the earth).
Mass of the earth is 100 times of that of the moon.
Radius of the moon = R
Radius of the Earth = 4R
Weight of the object on the moon =
We = G100M*m/(4R)2(Pronounced 4 R square)
We = G100M*m/(16R)2(Pronounced 16 R square)
Wm/We = G * M * m * 16R2/R2 * g * 100M * m
=16/100
Therefore, 4800N on earth= 1200N on moon
A)<span>the production of bubbles by the plant when it is in darkness because in the dark the plant respires and when it does so it produces CO2 gas not O2</span>
Answer:
More force
Explanation:
Object A has more mass than object B
For object A to accelerate at the same rate as object B, it will need more force.
According to Newton's second law of motion "the net force on a body is the product of its mass and acceleration".
Net force = mass x acceleration
Now, if a body has more mass and needs to accelerate at the same rate as another one with a lower mass, the force on it must be increased.