Explanation:
Number 29
= 10 N (from rocket) + 10 N (from wheels) - 7 N (from parachute 'cause force in other direction)
= 20 N - 7 N
= 13 N ✔
Number 30
= 100 N - 85 N
= 15 N to the left ✔
C or ly is the correct answer.
For starters, this question isn’t really about relativity. It’s about
energy, and E=mc^2 only makes sense if energy has the units of
(mass)*(velocity)^2. So we might as well ask: why is kinetic energy
defined as KE = ½*mv^2?
Answer:
A is a battery
B is a light
C is a resistor
D is a closed switch
thank you for this question, I love circuit diagrams
Explanation: