3 years ago

What is the potential difference across a 15Ω resistor that has a current of 3.0 A?

Physics

2 answers:

ololo11 [35]3 years ago

7 0

Answer:

45 V

Explanation:

sesenic [268]3 years ago

6 0

V = I • R

V = (15 ohms) x (3 A)

V = 45 volts

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Which of the following is the correct SI unit to use in measuring the mass of a boulder

never [62]

Definitely not A or B. It really depends on the size of the boulder... It should be kilograms, unless it's a extremely huge boulder.

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3 years ago

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Determine the stopping location of the prize wheel. At this moment it is centered on the number 11. It is spinning at a rate of

Goshia [24]

Answer:

The wheel spins for 11.43s. The number cannot be determined.

Explanation:

We know that initial velocity is 124.4 rpm = 13.027137522 rad/s, acceleration is -1.14 rad/s^2, and final velocity is assumed to be 0 rad/s. We are asked to find t and displacement. We use the equation $\omega=\omega_0+\alpha t$ where $\omega=0 rad/s$ , $\omega_0=13.027 rad/s$ , $\alpha=-1.14rad/s^2$ , and $t=?$ .

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3 years ago

When waves strike an object and bounce off, what has occured

Vesna [10]

The answer is reflection

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3 years ago

1) What would the average acceleration be for a car at a stoplight that speeds up to 20 m/s in 10 seconds (in m/s^2)

Alexxx [7]

1.)
Velocity is in m/s, and acceleration is in m/s^2 like you said. Because of this, we can calculate this by dividing the speed by the time it took to get to that speed.
(20 meters/second) / 10 seconds = 2 meters/ second^2

2.)
Same thing with the first one.
(100 meters/second) / 4 seconds = 25 meters / seconds^2

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3 years ago

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A car travels from 20-meters to 60-meters in 10 seconds. Calculate the car's speed.

slamgirl [31]

Answer:

8 m/s

Explanation:

All you have to do here is add 20 and 60 (giving you 80) and dividing by 10 seconds. 80/10= 8 m/s

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