15. Electric power is the rate at which an appliance converts electric energy into other forms of energy. Electric y2
power is given by, P= VI = PR-
R
The given figure shows four bulbs 1, 2, 3 and 4, consume same power. The resistance of bulb 1 is 36 Q.
(1) What is the resistance of the bulb 3?
(a) 402
(b) 902
(c) 18
(d) 120
(11) What is the resistance of bulb 4?
(a) 422
(b) 80
(c) 999
(d) 182
(18) If power of each bulb is 4 W, then the total current flowing through the circuit is
(a) 1A
(b) 2 A
(c) 4A
(d) 12 A
(lv) What is the equivalent resistance of the circuit?
(a) 122
(b) 8
(c) 182
(d) 1602

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

that would be because of both gravity and friction. so     c