Answer:
tension is 37.8 N
Explanation:
given data
mass of bar m1 = 2 kg
length of bar L = 1.4 m
suspended mass m2 = 5 kg
suspended object position length L2 = 0.8 m
to find out
tension
solution
we consider here bar is connected with hinge and
we know here system is equilibrium
so here net torque will be zero at joint
and mass 2 kg act at L1 = 1.4 /2 = 0.7 m
so torque = m1×g× ( L1 ) + m2 ×g× (L2) - T(L)
so
2 ×9.8 × ( 1.4/2) + 5×9.8 × ( 0.8) - T(1.4) = 0
T = 52.98 / 1.4
T = 37.8
so tension is 37.8 N
In other words, accuracy describes the difference between the measurement and the part's actual value, while precision describes the variation you see when you measure the same part repeatedly with the same device
Answer:
"When neutral objects are brought near the sphere, they are attracted to the sphere before they touch each other."
Explanation:
Charging by induction is said to occur when an uncharged object is brought near a charged body and it gets attracted towards it without even the two bodies touching.
The charged body polarizes the uncharged body. The charges shift to either sides and that causes the force of attraction between the two.
Suppose a negatively charged body is brought close to an uncharged body. The electrons of the body repel from the side near to the charged body and shift to the other end leaving behind positive ions.
The last line of the given paragraph indicates that charges can be moved by induction.
Answer:
This is True
Explanation:
I just did this exact unit in bio last week I hope this helps ;)