Physics, 09.12.2020 09:00 Goosebumpsestoybox
A person running in place on an exercise machine for 10 min uses up 17 kcal. Another person exercises by repeatedly lifting two 2.5-kg weights a distance of 50 cm. How many repetitions of this exercise are equivalent to 10 minutes of running in place? Assume that the person uses negligible energy in letting down the weights after each lift.
Answers: 3
Physics, 22.06.2019 11:00
What is the measurement of how fast an object moves relative to a reference point?
Answers: 1
Physics, 22.06.2019 18:00
Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.
Answers: 1
Physics, 22.06.2019 19:30
The ability to make things happen is also called a. heat b. force c. matter d. energy
Answers: 1
Physics, 22.06.2019 19:30
Emagnitude of the electrical force acting between a +2.4 × 10–8 c charge and a +1.8 × 10–6 c charge that are separated by 0.008 m is n, rounded to the tenths place.
Answers: 3
A person running in place on an exercise machine for 10 min uses up 17 kcal. Another person exercise...
Mathematics, 22.04.2021 22:20
Mathematics, 22.04.2021 22:20
Mathematics, 22.04.2021 22:20
Mathematics, 22.04.2021 22:20
Biology, 22.04.2021 22:20
History, 22.04.2021 22:20
Social Studies, 22.04.2021 22:20
Mathematics, 22.04.2021 22:20
Mathematics, 22.04.2021 22:20