Answer:
500 watts
Explanation:
Recall that the definition of power is the amount of energy delivered per unit of time.
In our case, the energy delivered is potential energy which we can estimate as the product of the weight of the object times the distance it is lifted above ground:
200 N x 10 m = 2000 Nm
then the power is the quotient of this potential energy divided the time it took to lift the object to that position:
Power = 2000 / 4 Nm/s = 500 Nm/s = 500 watts
Answer:
i dont know i am right but here Luminous intensity is defined as dI=dΨλ / dΩ, where dΨλ is the luminous flux (light energy flux in watts per m2) emitted within a solid angle dΩ. The light energy flux may be expressed in terms of the incident x-ray energy flux and the x-ray absorption and conversion properties of the scintillator(7,8,9).
Explanation:
Answer:
The Si unit of 
Explanation:
The velocity of sound in a medium is given by
Where, B be the Bulk modulus of the material medium and ρ be the density of the medium.
The SI unit of velocity of sound, v is metre/second
The SI unit for the density of medium, ρ is kg/m³
Substitute these units in the given expression to find the unit of bulk modulus, B
The Si unit of 
Answer: So if the kinetic energy increases, then the objects thermal energy increases.
Explanation:
Answer:3062.37 N
Explanation:
Given
log weight =2250 N
coefficient of kinetic friction 
During Pulling Forces on cable is log sin component and friction and tension (T)
T=1125+1753.70+183.67=3062.37 N
so Rope must be able to withstand a force of 3062.37 N
