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kykrilka [37]
4 years ago
12

3 m/s north is an example of a ?

Physics
1 answer:
Annette [7]4 years ago
6 0

Answer: I think it might be velocity. I'm not positive.

Explanation:

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A radio tower emits energy in the form of waves. These waves travel great distances. Some of them even leave Earth and travel
Elena-2011 [213]
Light because it is an electromagnetic wave and they can travel through the vacuum in outer space.
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3 years ago
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you are trying to figure out the voltage of a battery when you know the current and the resistance. the current(i) is 25 Amps, a
Brums [2.3K]

Answer:

V= 250 volts

Explanation:

V=IR

V=25*10

V=250 volts

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3 years ago
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A uniform plank of length 5.0 m and weight 225 n rests horizontally on two supports, with 1.1 m of the plank hanging over the ri
likoan [24]
<span>0.7 meters from the support, or 0.4 meters from the end of the board. Another way of describing the problem is to have the 450 N person move so that the center of mass of the plank and person system is on the second support. So let's first determine how far from that support the center of mass of the plank is. We can model the plank as a point mass source that's 2.5 meters from either end. So that point mass is 2.5-1.1 = 1.4 meters from the pivot. So let's multiply that radius by the mass, getting: 1.4 m * 225 N = 315 Nm Now the person will be at just the tipping point when their mass multiplied by the distance equal 315. So let's do the division. 315 Nm / 450 N = 0.7 m So the person will be at the tipping point when he's 0.7 meter from the support, or 1.1 - 0.7 = 0.4 meters from the end of the board.</span>
6 0
4 years ago
Define Laws of motion
Dmitriy789 [7]

Answer:

Explanation:

NEWTON'S FIRST LAW OF MOTION:

a body continues its state of rest or of uniform motion in a straight line provided no net force acts on it. Fnet=0

NEWTON'S SECOND LAW OF MOTION:

when a net force acts on a body it produces acceleration in the body which is directly proportional to the magnitude of the net force and inversely to the mass of the body.F=ma

NEWTON'S THIRD LAW OF MOTION:

to every action there is always an equal but opposite reaction.

8 0
3 years ago
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A car driving on a straight track accelerates at a rate of 3.2 m/s^2 for 14 sec. If the initial velocity of the car was 5.1 m/s,
Andreyy89

The final position of the car is 385 m.

Explanation:

We know the formula :

                                   s = ut +  \frac{1}{2} at^{2}

where,

                                     s = distance

                                     u = initial velocity = 5.1 m/s

                                      t = time taken = 14 sec

                                     a = acceleration = 3.2 m/s^{2}

Solving:

                         s = 5.1* 14 + \frac{1}{2} * 3.2 * 14^{2}

                      ∴ s = 385 m

Hence the final position of the car is 385 m.

3 0
3 years ago
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