Answer:
when a element of 1 group take part in reaction, its atom looses outer electron and form positively charged ions called Cation.
Explanation:
a.) K 2=K 1 +GmM( r 21− r 11)=2.2×10 7J
b.) K 2 +GmM( r 11− r 21)=6.9×10 7 J
Applying Law of Energy conservation :
K 1+U 1
=K 2+U 2
⇒K 1− r 1GmM
=K 2− r 2 GmM
where M=5.0×10 23kg,r1
=> R=3.0×10 6m and m=10kg
(a) If K 1
=5.0×10 7J and r 2
=4.0×10 6 m, then the above equation leads to
K 2=K 1 +GmM (r 21− r 11)=2.2×10 7J
(b) In this case, we require K 2
=0 and r2
=8.0×10 6m, and solve for K 1:K 1
=K 2 +GmM (r 11− r 21)=6.9×10 7 J
Learn more about Kinetic energy on:
brainly.com/question/12337396
#SPJ4
Answer:
C
Explanation:
Horizontal is constant... if it was on x axis it would be a speed of 0
Please give brainliest answer
The car's velocity at time <em>t</em> is given by
It comes to a stop when <em>v</em> = 0, which happens when
or after about 13.9 s.
In this time, the car travels a distance <em>x</em> given by
or about 192 m.
In one complete revolution, each tire covers a distance equal to its circumference,
or about 2.14 m.
This means each tire will complete approximately 192/2.14 ≈ 90 revolutions.
