Answer:
D either positive or negative.
Explanation:
an atom is converted into ion only when the the atom lose or gain an electron
If an isolated atom will gain excess electrons then in that case the atom will become a negative ion
While if the atom will lose the electron then it will convert into a positive ion.
so ion may be positive or negative both kind
It may either lose or gain electrons one or more than one
so here correct answer would be
D either positive or negative.
Charge= Protons- electrons
Charge= 35p-37e= -2
This Ion will have a charge of -2<span>. </span>
Answer: 7,000 ohms
Explanation:
From the equation of ohms law V= IR
V=21 volt
I = 3 MA = 3.0×10^-3 A
So by evaluating, we have.
V= IR
21= 3.0×10^-3 × R
Then R = 21/3.0×10^-3
R= 7,000 ohms//.
Answer:
Following are the responses to the given question:
Explanation:
The mass (mg) is downwards, the typical
pressure is upward. This pushing force of
is pushed forward by skater 3 on skater 2. (considered as rightward direction). The strength of the slater 2 in reply is the slater
Skater three moves to the left.
Its push force
imparted to the skateboarder 2 in relation those above forces The force
on skater 2 by skater 1 is as a response, to a left. Skater 2's free body system is as follows:
Answer:
E) The centripetal force is always perpendicular to the velocity.
Explanation:
Due to gravity and inertia, the satellite follows a uniform circular motion. In this movement, the velocity is always tangent to the orbit and the centripetal force is directed towards the center. Therefore, there is no net acceleration in the same direction of velocity, which implies that it remains constant.