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melamori03 [73]
2 years ago
11

Suppose you have a 75-watt light bulb that you leave turned on for two minutes. How much energy

Physics
1 answer:
victus00 [196]2 years ago
5 0

Answer:

9000 J

Explanation:

Convert minutes to seconds.

2 min = 120 s

Power = energy / time

75 W = E / 120 s

E = 9000 J

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(Score for Question 4: Click or tap here to enter text of 4 points)
astra-53 [7]

The time of motion of the ball from the vertical height is independent of the horizontal velocity.

Horizontal moving projectiles is not affected by gravity and the initial velocity is equal to the final velocity.

The time of motion of ball dropped from a vertical height is calculated as follows;

h = v_0_yt \ + \ \frac{1}{2} gt^2\\\\

where;

  • <em>h </em><em>is the vertical height</em>
  • <em>t </em><em>is the </em><em>time </em><em>of motion</em>
  • <em>g </em><em>is acceleration due to gravity</em>
  • <em />v_0_y<em> is the initial </em><em>vertical velocity</em>

From the equation above, we can conclude that time of motion of the ball from the vertical height is independent of the horizontal velocity.

If there is variation in drop time, it could be as a result of applied force when the ball is dropped. This applied force influences the initial velocity which in turn alters the drop time.

Generally, horizontal moving projectiles is not affected by gravity and the initial velocity is equal to the final velocity.

Learn more about horizontal and vertical velocity here: brainly.com/question/14354319

7 0
2 years ago
When spray is applied to a car, the paint has a negative charge and the surface of the car has a positive charge. Some processes
RUDIKE [14]

Answer:

Based on the properties electrically charged particles, we have that unlike charges attract and like charges repel each other. In order for proper application of an electrostatically negatively charged paint to be properly applied on the metal body surface of a vehicle, require that for attraction, the surface of the vehicle should be grounded and positively charged so as to effectively attract the negatively charged paint particles as it exits the nozzle, to form a strong attachment with the positively charged surface of the vehicle

Explanation:

4 0
3 years ago
Which example best represents translational kinetic energy? A plucked string guitar. The moving blades of a ceiling fan. A spinn
MrRa [10]

Answer:

The answer is e the apple one

Explanation:

5 0
2 years ago
Read 2 more answers
Which are standard functions that families are responsible for providing?
Savatey [412]

C: life skills, stability, resources, affection


4 0
3 years ago
Read 2 more answers
How can you tell that this is a combustion reactionn
d1i1m1o1n [39]

Answer:

May form in water carbon dioxide and other forms

Explanation:I hope I got this right don’t hate me if I mess up

6 0
2 years ago
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