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vodomira [7]
3 years ago
15

A man is pulling on his dog with a force of 34.7 N directed at an angle of 24.4° to the horizontal. Find the x component of this

force.
Physics
1 answer:
stepladder [879]3 years ago
7 0

Answer:

31.7\:\mathrm{N}

Explanation:

We can use basic trig in a right triangle to solve this problem. Let the x component of the force be x. We have the following equation:

\cos 24^{\circ}=\frac{x}{34.7},\\x=34.7\cos 24^{\circ}\approx \boxed{31.7}

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The angular speed of digital video discs (DVDs) varies with whether the inner or outer part of the disc is being read. (CDs func
Kitty [74]

Answer:

α = 0.0135 rad/s²

Explanation:

given,

t = 133 min = 133 x 60 = 7980 s

angular speed varies from 570 rpm to 1600 rpm

now,

570 rpm = 570 \times \dfrac{2\pi}{60}

              = 59.69 rad/s

1600 rpm =  = 570 \times \dfrac{2\pi}{60}

              = 167.6 rad/s

using equation of rotational motion

ωf = ωi + αt    

167.6 = 59.7 + α x 7980

α  x 7980 = 107.9

α = 0.0135 rad/s²

8 0
3 years ago
Bro i need help omg.
sergey [27]

Answer:

25.

Explanation:

8 0
3 years ago
Read 2 more answers
(6.9 * 10-6)(770 * 102)
meriva

Answer:

4948020

Explanation:

(6.9*10-6)(770*102)

<u>Multiply  6.9  by  10 . </u>

( 69 − 6 ) ( 770 ⋅ 102 )

<u>Subtract  6  from  69 . </u>

63 ( 770 ⋅ 102 )

<u>Multiply  770  by 102 . </u>

63 ⋅ 78540

<u>Multiply  63  by  78540 . </u>

4948020

5 0
3 years ago
What is the resistance of a circuit with a voltage of 10 volts (V) and a current of 5 amps (A)? Use Ohm’s law to calculate the r
iogann1982 [59]

Answer: 2Ω

Explanation:

V = IR

R = V/I

R = 10/5 = 2Ω

Hope it helped!

5 0
3 years ago
Read 2 more answers
Two trains, each having a speed of 35 km/h, are headed at each other on the same straight track. A bird that can fly 70 km/h fli
aalyn [17]

Answer:

Explanation:

The two train are traveling at 35km/hr

A bird starts from one of the train and travel at 70km/hr

The distance between the two train is 70km.

The bird is going to and fro, so since we know the speed of the bird, we only need to know the time the two train will collide

So let calculate the time the two train will meet

Since each train is traveling at 35km/hr

The train will collide at mid point of their distance apart, so let know the time each of the train will get their

Time to each train will get to 35km

Velocity =distance/time

Time =distance/velocity

Time=35/35

Time = 1hour

Therefore, the bird will fly for 1hr before been crushed down by the train

Since the bird is traveling at 70km/hr

Therefore total distance the bird will travel

Distance = velocity × time

Distance = 70 ×1

Distance =70km

So the bird will travel for 70km.

8 0
3 years ago
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