Answer: In a longitudinal wave, the crest and trough of a transverse wave correspond respectively to the compression, and the rarefaction. A compression is when the particles in the medium through which the wave is traveling are closer together than in its natural state, that is, when their density is greatest.
Vertical force on the box=mg
<span>the component of gravity parallel=mg*SinTheta </span>
<span>the component of gravity normal=mg*CosTheta </span>
<span>frictional force up the plane: mg*cosTheta*mu max, but if it is sitting still, it is equal and opposite to mg*cosTheta (it cannot be greater than this or it would go up the plane).</span>
Answer:
Explanation:
The devices are connected in parallel, the same voltage will flow through them
1) I, current in the 1800 W toaster
P, power = I V
where p = 1800 W
1800 /120 = I
I drawn by the toaster = 15 A
2) I, current drawn by the 1400 W frying pan = 1400 / 120 = 11.667 A
3) I, current drawn by 75 W = 75 / 120 = 0.625 A
B) Total current drawn by the circuit = 15 A + 11.667 A + 0.625 A = 27.292 A which is greater than 15-A hence the combination will blow the fuse
Answer:
El alcance de la bala es 3464,1 m.
Explanation:
El alcance de la bala se puede calcular como sigue:
En donde:
y: es la altura final = 0
: es la altura inicial = 0
x: es el alcance
θ: es el angulo respecto a la horizontal = 30°
: es la velocidad inicial = 200 m/s
g: es la gravedad = 10 m/s²
Entonces, tenemos:
Por lo tanto, el alcance de la bala es 3464,1 m.
Espero que se te sea de utilidad!
when you do positive work on an object, you ______
A. decrease the object's energy
<u>B. keep the object's energy the same
</u>
C. increase the object's energy
D. may increase or decrease the object's energy
