Physics, 06.04.2020 22:29 spers008278
3. What type of current is produced by a battery? (1 point
parallel current
alternating current
direct current
potential current
Answers: 2
Physics, 22.06.2019 02:00
Askydiver weighing 140 lb (including equipment) falls vertically downward from an altitude of 19,000 ft and opens the parachute after 18 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.55|v| when the parachute is closed and is of magnitude 14|v| when the parachute is open, where the velocity v is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. (a) find the speed of the skydiver when the parachute opens. (b) find the distance fallen before the parachute opens. (c) what is the limiting velocity vl after the parachute opens? (d) determine how long the sky diver is in the air after the parachute opens. (e) plot the graph of velocity versus time from the beginning of the fall until the skydiver reaches the ground.
Answers: 1
Physics, 22.06.2019 23:00
Amother used 150 watts of power to raise a 15 newton object in a time interval of 8.0 seconds. through what vertical distance was the object raised ?
Answers: 1
Physics, 23.06.2019 13:00
Why, on the molecular level, does changing the amount of baking soda or vinegar affect the amount of carbon dioxide gas produced?
Answers: 2
Physics, 23.06.2019 19:50
Which birth control method can be used to prevent pregnancy after unprotected intercourse? a. female condom b. birth control patch c. emergency contraception
Answers: 1
3. What type of current is produced by a battery? (1 point
parallel current
alternating...
parallel current
alternating...
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