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katrin2010 [14]
3 years ago
10

How much power is used by a hair dryer if it does 40,000 J of work in 40 seconds?

Physics
1 answer:
bearhunter [10]3 years ago
6 0

Answer:

40000÷40=1000 joules is required to work in 40 seconds

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GuDViN [60]

<u>Explanation:</u>

s = ?           u = 0m/s        v = ?         a = 5m/s²        t = 2s

v = u + at                  

  = 0 + (5 x 2)              

  = 10 m/s                    

s = ut + 1/2 at²

= (0)(2) +  x    \frac{1}{2}  x 5 x 2²

= 10 m

Hope this helps!

5 0
1 year ago
When your vehicle turns a corner, the tracks made by the rear tires are always: a) Outside of those made by your front tires b)
ankoles [38]

Answer:

I think it's D

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because I have seen the tracks of the tires

8 0
3 years ago
The number of wave troughs that pass by every second is a wave's _________.
professor190 [17]
A waves frequency (in Hertz) is how many crests pass by a point per second. easily confused with period, which is the amount of time it takes for a full wave to pass by a certain point 
6 0
3 years ago
The following questions consist of a statement and a reason .Answer these questions selecting the appropriate options given belo
Mamont248 [21]

Answer:

<em><u>1)A)</u></em>

<em><u>1)A)2)A)</u></em>

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4 0
2 years ago
) A satellite of mass m has an orbital period T when it is in a circular orbit of radius R around the earth. If the satellite in
Mrrafil [7]

Answer:

A) T.

Explanation:

Kepler's third law states that the orbital period (T) of a satellite is related with the radius (R) and the mass of the object (M) it orbits:

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3 years ago
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