an 1800-w toaster, a 1400-w electric frying pan, and a 75-w lamp are plugged into the same outlet in a 15-a, 120-v circuit. (the
1 answer:
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Answer:
the unit vector points from the point charge toward where the field is measured(from proton to point P)
Explanation:
Answer:
6840 N
Explanation:
The force acting on the car can be found by using Newton's second law:
F = ma
where
F is the net force on the car
m is the mass of the car
a is its acceleration
For the car in this problem,
m = 1800 kg
Substituting,
Answer:
The average speed of 3.5 m/s means that it takes Sally approximately 47.619 minutes to run 10,000 meters
Explanation:
Average speed is a scalar quantity that is given by dividing the total distance moved or traveled by an object by the time that it takes the object during the motion
The average peed indicates the rate at which the object makes a given amount of journey distance given that the journey is completed with varying speeds
With the knowledge of the average speed and the distance covered, the time for completion of the journey can be found as follows;
Where
= Average speed of the object = 3.5 m/s
Δt = The time it takes the Sally to run 10,000 meters
Δx = The total distance Sally runs = 10,000 meters
Therefore;
The time it takes the Sally to run 10,000 meters= Δt = 20,000/7 seconds ≈ 2,857.143 seconds
20,000/7 seconds ≈ 47.619 minutes
Therefore, the average speed of 3.5 m/s means that the time it takes the Sally to run 10,000 meters ≈ 47.619 minutes