Physics, 20.11.2020 23:00, kingofthesea88
Which of these best explains why the coin fell straight down into the cup instead of remaining on the index card?
F. The coin was at rest until the card was removed, so it tended to remain in the same location. Once the card was gone, the unbalanced force of gravity caused the coin to fall.
G. Moving the card applied an action force on the coin. Since the card was gone, gravity applied a reaction force on the coin.
H. The card had less mass than the coin, so a smaller force of gravity acted on the card. The larger force of gravity on the coin made it fall.
J. The acceleration of the coin falling into the cup was equal and opposite to the acceleration of the card.
Answers: 2
Physics, 22.06.2019 12:20, zenaidazurita1p6bs1d
Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?
Answers: 2
Physics, 22.06.2019 12:30, decemberbooker2505
Brades exam guidelines exam instructions billing & payments & support question 6 of 20 : select the best answer for the question use this illustration to answer the question below. forms & resources al programs 9 ww linics 6. in the circuit shown in the figure above, suppose that the value of r, is 100k, and the value of r2 is 470 kq. at which of the following locations in the circuit would you measure the highest voltage with your meter? rvices 999999 a. between points b and c b. between points a and b c. between points b and e d. between points a and c eredu mark for review (will be highlighted on the review page) mend < < previous question next question
Answers: 1
Physics, 22.06.2019 13:30, kuddlebugsmommy
The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
Answers: 1
Which of these best explains why the coin fell straight down into the cup instead of remaining on th...
Chemistry, 01.04.2021 01:00
Mathematics, 01.04.2021 01:00
Mathematics, 01.04.2021 01:00
Mathematics, 01.04.2021 01:00
Chemistry, 01.04.2021 01:00