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Nonamiya [84]
3 years ago
6

WHAT IS TRANS ATLANTIC SLAVE TRADE​

Physics
1 answer:
emmasim [6.3K]3 years ago
7 0
Hope this kinda helps!

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What current passes through a 1 kW heater with 25 V across it?
Ivan

Answer:The voltage V in volts (V) is equal to the current I in amps (A) times the resistance R in ohms (Ω): V (V) = I (A) × R (Ω) The power P in watts (W) is equal to the voltage V in volts (V) times the current I in amps (A): P (W) = V (V) × I (A) AC Ohm's law calculator.

Explanation:

3 0
3 years ago
A cylindrical capacitor is made of two concentric cylinders. The inner cylinder has radius r1 = 4 mm, and the outer one a radius
vladimir1956 [14]

Answer:

E = 9.62*10^-8 J

Explanation:

The energy stored in a capacitor is given by the following formula:

E=\frac{1}{2}CV^2     (1)

E: energy stored

C: capacitance

V: potential difference of the capacitor = 4 V

The capacitance for a concentric cylindrical capacitor is:

C=\frac{2\pi \epsilon_o L}{ln(\frac{r_2}{r_1})}     (2)

L: length of the capacitor = 150m

r2: radius of the outer cylinder  = 8mm = 8*10^-3m

r1: radius of the inner cylinder = 4mm = 4*10^-3m

εo: dielectric permittivity of vacuum = 8.85*10^-12C^2/Nm^2

You replace the expression (2) into the equation (1) and replace the values of all parameters:

E=\frac{1}{2}(\frac{2\pi \epsilon_o L}{ln(\frac{r_2}{r_1})})V^2\\\\E=\frac{\pi \epsilon_o L}{ln(\frac{r_2}{r_1})}V^2\\\\E=\frac{\pi (8.85*10^{-12}C^2/Nm^2)(150m)}{ln(\frac{8*10^{-3}m}{4*10^{-3}m})}(4V)^2\\\\E=9.62*10^{-8}J

The energy stored in the cylindrical capacitor is 9.62*10-8 J

4 0
3 years ago
A bus starts to move from rest. if its velocity becomes 90 km per hour after 8s second. calculate acceleraton​
topjm [15]

90 km per hour = 25 metres per second

a=\frac{v-u}{t}

a=\frac{25-0}{8}

a=3,13m/s^2

7 0
3 years ago
Ajdaifsgodtistizhxtsgoachoach
Norma-Jean [14]

Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm maybe

8 0
3 years ago
A nonzero net force acts on a particle and does work. Which one of the following statements is true?
arlik [135]

Answer:

option (D) is correct.

Explanation:

According to the work energy theorem, the work done by all forces is equal to the change in kinetic energy of the body.

the kinetic energy of a body is directly proportional to the square of the speed of the body.

As the kinetic energy change, the speed of the body also change.

Option (D) is correct.

5 0
3 years ago
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