Question

?

Answer 1

I probably need to get going but see if you can try to answer these based off the equations we've been using, you can refer to your earlier questions if you are getting stuck

Answer 2

Okay sure

Answer 3

1500/60

Answer 4

25W

Answer 5

for a

Answer 6

for a) the desired quantity is energy so the units must be joules

power = energy/time, for 60W and 16 hours, make sure to convert hours to seconds

Answer 7

60/57600

Answer 8

@Vocaloid

Answer 9

remember you are solving for energy

Answer 10

960

Answer 11

power = energy/time

energy = ?

Answer 12

think about what is being done to energy on the right hand side of the equation and then do the opposite to solve for energy

Answer 13

energy is being divided by time so we will do the opposite of dividing by time to cancel out time on the right hand side

Answer 14

345600

Answer 15

w

Answer 16

J

Answer 17

good, 345600J

same thing for b) just with the toaster values

Answer 18

4050000J

Answer 19

good

for c) you just need to calculate 2.3% of the energy from a) since the efficiency describes light energy only

Answer 20

79488

Answer 21

i think you missed a decimal place

I got 7948.8j

Answer 22

Oh okay thanks