Physics, 01.12.2020 09:20 igocrazy594
Conner is making breakfast. He stacks three pieces of toast on top of each other at different temperatures. (50,70, and 90). In what direction does thermal energy begin to flow between the pieces of toast? A- From the 70°C to the 90°C toast B- From the 90°C to the 70°C toast C- From the 50°C to the 70°C toast D- There is no thermal energy transfer
Answers: 1
Physics, 22.06.2019 06:00
Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire
Answers: 1
Physics, 22.06.2019 11:40
Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?
Answers: 3
Physics, 22.06.2019 11:50
Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?
Answers: 2
Conner is making breakfast. He stacks three pieces of toast on top of each other at different temper...
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