Which appliances uses the larger current, a toaster or a desk lamp?

Physics

2 answers:

nydimaria [60]2 years ago

7 0

Answer:

DeskLamp

Explanation:

You're average toaster uses so much more electricity than the average desk lamp. 2 slice toasters I believe uses about 1000 watts? And 4 slice uses 1600. The brightest lightbulbs tend to run on 100 watts so just imagine a lightbulb with 1600 watts. (There's a video of a man cranking the watts to a 1000 watt lightbulb up to millions until it pops) Lightbulbs have a very far range in the amounts of energy they can take in. Here is a simplified answer-

On average- the toaster would use the most watts in terms of use

In other circumstances- The lightbulb would be the case.

So yeah,

It's Desklamps. They're really powerful.

scoundrel [369]2 years ago

5 0

Answer: Desklamp
Depending on the light it can use up to 12%
And closest to a toster was and electrical oven which was only 2% of current... So I'm pretty sure the answer would be a Desklamp

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A person weighing 0.70 kn rides in an elevator that has an upward acceleration of 1.5 m/s2. what is the magnitude of the normal

creativ13 [48]

First of all, we can find the mass of the person, since we know his weight W:
$W=mg=0.70 kN=700 N$
And so
$m= \frac{W}{g}= \frac{700 N}{9.81 m/s^2}=71.4 kg$

We know for Newton's second law that the resultant of the forces acting on the person must be equal to the product between the mass and the acceleration a of the person itself:
$\sum F = ma$
There are only two forces acting on the person: his weight W (downward) and the vincular reaction Rv of the floor against the body (upward). So we can rewrite the previous equation as
$R_v -W = ma$
We know the acceleration of the system, $a=1.5 m/s^2$ (upward, so with same sign of Rv), so we can solve to find the value of Rv, the normal force exerted by the elevator's floor on the person:
$R_v = ma+W=(71.4 kg)(1.5 m/s^2)+700 N =807N$