which of the following statements is not true Negatively charged objects attract other negatively charged objects. Positively ch
arged objects attract negatively charged objects. Positively charged objects attract neutral objects. Negatively chargers objects attract neutral objects.
2 answers:
Answer:
negativelycharged objects attract other negatively charged objects
Explanation:
unlike charges attract like charges repel
Answer:
negatively charged object attract other negatively objects
Explanation:
opposites attract
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Answer:
The number of complete vibration or wave made in
one second is called frequency.
Answer:
F=12.5N
Explanation:
Net force = rate of change of momentum
so find the change of momentum P
Pdown
Pup
dP = change in P
so
Impulse delivered
or
Change in momentum.
Answer:
Work done,W= 250J
Displacement , s = 60
We know that, Work done = Force x displacement
i.e , W = Fxs
250 J = F x 60m
F = 250/60
=4.16 N
Hence , 4.16 N of Force is applied on the body.
All isotopes of the same element have the same number of protons
in the nucleus of their atoms, but different numbers of neutrons.
