A torch bulb lights noramly when the current through it is 0.015 A and the potential difference across it is 12.0.V. a) calculate the resistance of torch bulb when it lights normaly.
b) when the torch bulb lights normaly calculate: (i) the charge passing through the torch bulb in 1200s. (i) the energy delivered to torch bulb in this time.

think about the oscillation of the toy shown in the video. when the toy is at the highest point of its motion, its velocity is zero and its acceleration is negative.

c. 7/3

step-by-step explanation:

a rational number is like pi- it is a repeating decimal.

a. is -1.8

b. 2.236068

c. 2.3333333333333333333

d.   is 3

i hope that ! =)

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.