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kondor19780726 [428]
3 years ago
5

What does the energy hill represent on an energy diagram?

Physics
1 answer:
creativ13 [48]3 years ago
8 0

Answer:

In my opinion I think the answer is C you don't have to choose C

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A projectile has an initial horizontal velocity of 34.0 M/s at the edge of a roof top. Find the horizontal and vertical componen
Sveta_85 [38]

Answer:

v_x=34 m/s

v_y=53.9\ m/s

Explanation:

<u>Horizontal Launch</u>

When an object is thrown horizontally with a speed v from a height h, it describes a curved path ruled by gravity until it eventually hits the ground.

The horizontal component of the velocity is always constant because no acceleration acts in that direction, thus:

vx=v

The vertical component of the velocity changes in time because gravity makes the object fall at increasing speed given by:

v_y=g.t

The horizontal component of the velocity is always the same:

v_x=34 m/s

The vertical component at t=5.5 s is:

v_y=9.8*5.5=53.9

v_y=53.9\ m/s

8 0
3 years ago
What happens to the resistance of a filament if it is replaced by a shorter<br> wire?
scoray [572]

Answer:the resistance decrease

Explanation:

8 0
3 years ago
A 15 n force directed to the west acts on an object for 3.0 seconds, what is the change in momentum of the object?
pickupchik [31]
By definition we have that
 force=dP/dt,
 where
 p is momentum
 so
 <span>momentum is force*time
 p= 15*3 = 45 Ns , west.
 </span><span>the change in momentum of the object is 45 N.s</span>
7 0
3 years ago
What energy is the candle giving off
gregori [183]
The candle is giving off light
Chemical energy from the candle is converted to thermal energy
5 0
3 years ago
The following forces act on an object: 10 N north, 7 N south, and 4 N east. What is the magnitude of the net force?
spin [16.1K]

Given data;

 Fn = 10 N

 Fs = 7 N

 Fe = 4 N

           force in X direction (Fx) = 4 N

           force in Y direction (Fy) = 10-7 = 3 N

           Net force (Fnet) = Sq.root[(Fx)² + (Fy)²]

                                      = Sq root [ 4² + 3² ]

                                      = 25 N

        <em> Net force acting = 25 N</em>

                                   

6 0
3 years ago
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