Physics, 13.12.2019 20:31, noathequeen
You see a penny lying on the ground. a penny won't buy much these days, so you think: "if i bend down to pick it up i will do work. to do that work i will have to burn some energy. it probably costs me more to buy the fuel (food) to provide that energy than i would gain by picking up the penny. it's not cost effective." you pass it by. show answer no attempt is the argument correct? estimate the energy cost for picking up a penny. you may find the following information useful: a jelly donut contains about 250 calories (1 calorie = 1 kcal).
Answers: 2
Physics, 22.06.2019 09:20, Geo777
Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers
Answers: 1
Physics, 22.06.2019 18:30, ayoismeisalex
Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction
Answers: 2
Physics, 22.06.2019 21:10, truelove9288
Which radioisotope is used in dating geological formations?
Answers: 3
You see a penny lying on the ground. a penny won't buy much these days, so you think: "if i bend do...
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