Answer:
(a) 0.075
(b)20.1 mA
(c) 2.412 W
Explanation:
Vs = 9 V, is = 268 mA = 0.268 A
Vp = 120 V
(a) Let the number of turns in primary coil is Np and the number of turns in secondary coil of the transformer is Ns.
Ns / np = Vs / Vp
Ns / Np = 9 / 120
Ns / Np = 3 : 40 = 0.075
(b) Let the current drawn from the wall socket is ip.
Ns/ Np = ip / is
0.075 = ip / 0.268
ip = 0.0201 A = 20.1 mA
(c) Power delivered by the socket = Vp x ip = 120 x 0.0201 = 2.412 W
Power sent to the batteries = Vs x is = 9 x 0.268 = 2.412 W
Choice c it's confusing to understand but it's c
Answer: The volume of the gas increases as the temperature increases. As temperature increases, the molecules of the gas have more kinetic energy. therefore it increases! Hope this helps you!
Explanation:
(a) The maximum height reached by the projectile is 10.2 m and
(b) The horizontal distance traveled by the projectile is 40.8 m.
<h3>
Maximum height reached by the projectile</h3>
H = u²sin²θ/2g
H = (20²(sin(45))² / (2 x 9.8)
H = 10.2 m
<h3>Time of motion</h3>
T = (2u sinθ)/g
T = (2 x 20 x sin(45) )/(9.8)
T = 2.886 s
<h3>Horizontal distance traveled by the projectile</h3>
x = (v cos(45) x t
x = (20 x cos(45)) x 2.886
x = 40.8 m
Thus, the maximum height reached by the projectile is 10.2 m and the horizontal distance traveled by the projectile is 40.8 m.
Learn more about maximum height here: brainly.com/question/12446886
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