An electric bulb rated 220V, is connected to 220V,
5Hz AC source. Then the bulb:
(a) Does not...
Physics, 12.12.2020 15:50 superstarsara5ouh83x
An electric bulb rated 220V, is connected to 220V,
5Hz AC source. Then the bulb:
(a) Does not glow
(by Glows intermittently
(c) Glows continuously
(d) Fuses
Answers: 2
Physics, 22.06.2019 11:20
If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s
Answers: 1
Physics, 22.06.2019 17:40
Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.
Answers: 2
Physics, 22.06.2019 19:30
Juliette sets the initial velocity to +10 m/s, the acceleration to zero, and clicks “start.” how can shakina describe the subsequent motion of the car juliette controls?
Answers: 3
Physics, 22.06.2019 20:30
Why does karst topography exist in some geographic location? a. few climates have enough oxygen b. most regions have rock layers other than limestone c. in most regions, the soil is too thin d. the water is too acidic enough in most places
Answers: 2
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