subject

Physics, 20.11.2020 14:50 megan9246

Hand-cranked flashlights transform mechanical energy into other forms of energy. Which energy transformations are useful, and which are not? Explain why most hand-cranked flashlights are made with LEDs

ansver

Answers: 2

Show answers

Another question on Physics

question

Physics, 21.06.2019 16:00

Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30newtons what must the input force be

Answers: 3

question

Physics, 21.06.2019 21:50

It is may 5 and you are somewhere in the northern hemisphere. if you determine that the noon sun is 51 degrees above your southern horizon, what is the latitude of your location

Answers: 1

question

Physics, 22.06.2019 11:00

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.

Answers: 3

question

Physics, 22.06.2019 12:10

The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.

Answers: 1

You know the right answer?

Hand-cranked flashlights transform mechanical energy into other forms of energy. Which energy transf...

Questions

question

Mathematics, 06.01.2020 01:31

Ascale model of a house is 1 foot long the actual house is 36 feet long in the model the door is 2 inches high how many feet high is the actual door...

question

Chemistry, 06.01.2020 01:31

Select the correct answer from each drop-down menu. how are real gases different from ideal gases? real gases differ from ideal gases bec...

question

Mathematics, 06.01.2020 01:31

Tim and his brother are building towers out of blocks. tim is using blue blocks that are 6 cm tall and his brother is using green blocks that are 8 cm...

question

English, 06.01.2020 01:31

Anyone wanna be my friend? talk to me plz (bored)...

question

Mathematics, 06.01.2020 01:31

Mr. kim needs to buy 3 plane tickets for him, his wife & their 2 children at $259 for each person. how much will he spend on all of their plane t...

question

Social Studies, 06.01.2020 01:31

State 5 scientific discoveries of traditional societies in nigeria...

question

Mathematics, 06.01.2020 01:31

749/d ∙ d/749=1 what does d equal?...

question

Mathematics, 06.01.2020 01:31

21. what is the exact volume of a sphere whose diameter is 14 cm? show your work....

question

Mathematics, 06.01.2020 01:31

Lebron has 6 yards of cable. he needs 15 feet of cable to install a stereo. does he have enough cable to install the stereo? explain your answer...

question

English, 06.01.2020 01:31

Ineed input on this vignette: saying bye i remember the last day of school, june 11, 2019 to be precise, and how i had to say bye to my f...

question

English, 06.01.2020 01:31

Based on shan's actions, you can conclude that she's a.) cruel b.) greedy c.) practical d.) generous

question

History, 06.01.2020 01:31

Explain why the french poltical system needs to change...

question

Mathematics, 06.01.2020 01:31

What is the value of thi expression when d=3? 7d2+10= a: 63 b: 52 c: 31 d: 73...

question

Chemistry, 06.01.2020 01:31

Label rotation, revolution and orbit...

question

Geography, 06.01.2020 01:31

Two earth scientists are exploring a cave. while moving through the cave, they notice that the caves have smooth limestone wallsand that a creek...

question

Chemistry, 06.01.2020 01:31

What are some chemical equations that follow the law of conservation of matter and why?...

question

Mathematics, 06.01.2020 01:31

The crew worked 2 1/5 days. if they built 3 3/4 kilometers of road each day, what is the length of the road...

question

Mathematics, 06.01.2020 01:31

What is said to be 'paid back' by the oxidation of lactic acid after anaerobic respiration?...

question

Mathematics, 06.01.2020 01:31

The tens digit of a two-digit number is 3 less than the units digit. find the original number, if the sum of that number and the number reversed is 14...

question

Health, 06.01.2020 01:31

What are the main factors based on the humanistic theory. be descriptive and don’t just say good will....

More questions: Physics Another questions