Physics, 22.10.2020 23:01 valeriegarcia12

How many minutes
is needed for a
60 W light bulb to
do 5400 J of work?

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 19:30, ggdvj9gggsc

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Answers: 1

continue

Physics, 21.06.2019 22:20, lunamoon1

The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?

Answers: 2

continue

Physics, 23.06.2019 03:30, ijohnh14

An object is kept at 45 m high and how much time will it take to reach the ground

Answers: 2

continue

Physics, 23.06.2019 09:30, vicinimlv19

While strolling downtown on a saturday afternoon, you stumble across an old car show. as you are walking along an alley toward a main street, you glimpse a particularly stylish alpha romeo pass by. tall buildings on either side of the alley obscure your view, so you see the car only as it passes between the buildings. thinking back to your physics class, you realize that you can calculate the car's acceleration. you estimate the width of the alleyway between the two buildings to be 6 m. the car was in view for 0.6 s. you also heard the engine rev when the car started from a red light, so you know the alpha romeo started from rest 4 s before you first saw it. find the magnitude of its acceleration.