Answer:
The main effect of radiofrequency electromagnetic fields is heating of body tissues.
Explanation:
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At low frequencies, external electric and magnetic fields induce small circulating currents within the body. ... The main effect of radiofrequency electromagnetic fields is heating of body tissues. There is no doubt that short-term exposure to very high levels of electromagnetic fields can be harmful to health.
Answer:
1.25 turns
Explanation:
From Transformer equation,
Ns/Np = Vs/Vp............................ Equation 1
Where Ns = Secondary turns, Np = Primary turns, Vs = secondary Voltage, Vp = Primary Voltage.
make Ns the subject of the equation 1
Ns = NpVs/Vp.......................... Equation 2
Given: Np = 100 turns, Vp = 120 V, Vs = 9600 V
Substitute into equation 2
Ns = 100(120)/9600
Ns = 1.25 turns.
Hence the are 1.25 turns in the secondary coil = 1.25 turns
Answer:
529.92Newton Meters
Explanation:
Work=force x displacement
8books in total
force is 1.8kg
dispplacement is 4.6cm
times both units by 8 and u get
force - 14,4
displacement - 36.8
now times boht together and u get 529.92nm
Answer: the object should be overcome by buoyancy and rise in the fluid.
Explanation:
1575 N
Explanation:
Step 1:
Let us consider that 350 J of energy is spent by that person to push a couch to 4.5 m from its initial position.
Let F be the force required and E be the energy spent and D be the distance traveled by the couch from its initial state.
In Physics, Work done = Force / Displaced distance
Step 2:
Let the work done be 350 J and Distance be 4.5 m
Then Force exerted = 
