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Genrish500 [490]
4 years ago
12

What is the power of a hair dryer if it uses 72,000 joules energy in 60.0 seconds

Physics
2 answers:
Vladimir [108]4 years ago
8 0
Power=Energy
72,000/60 = 1200 watts 
:)
iren2701 [21]4 years ago
6 0

The answer is:

1,200 Watts

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how much force would be required to produce 88 j of work when pushing a box 1.1meters at an angle of 10 degrees?
ycow [4]

Answer:81.235N

Explanation:

Work=88J

theta=10°

distance=1.1 meters

work=force x cos(theta) x distance

88=force x cos10 x 1.1 cos10=0.9848

88=force x 0.9848 x 1.1

88=force x 1.08328

Divide both sides by 1.08328

88/1.08328=(force x 1.08328)/1.08328

81.235=force

Force=81.235

5 0
3 years ago
If a car was moving at a speed of 25mph for 6 hours, how far would the car travel?​
Anestetic [448]

Answer:

150 miles

Explanation:

25mph x 6hrs = 150miles

7 0
3 years ago
How long can you keep open beer in the fridge?
Gre4nikov [31]
You can keep it for as long as you want; you're the boss of your fridge. 
But anyway, an open beer bottle can stay good in the fridge for up to 96 hours, probably more. 
7 0
3 years ago
Read 2 more answers
While playing football, Chris runs 4.5 m at 20⁰ south of west. If an opponent was trying to tackle him how far west and south wo
rewona [7]

Answer:

South = 1.5m

West =4.2m

Explanation:

Kindly see attached a rough draft of the situation

Step one

Given data

From the sketch the direction of the player is along the resultant of the triangle, corresponding to the Hypotenuse

Step two:

Hence for an opponent to tackle him towards the south, he must be at

sin θ= opp/hyp

sin 20=x/4.5

x=sin 20*4.5

x=0.342*4.5

x= 1.5m

Also, for an opponent to tackle him towards the south, he must be at

cos θ= adj/hyp

cos 20=y/4.5

y=cos 20*4.5

y=0.93*4.5

y= 4.2m

5 0
3 years ago
What is work?(theoretically)
emmasim [6.3K]

Answer:

force×distance

Explanation:

work is the ability of an object to move a distance as a result of the force being applied

4 0
3 years ago
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