Answer:
ondas mecánicas,ondas electromagnética .
Explanation:
ondas mecánicas, como las ondas de agua de sonido, temblores del terremoto y, necesitan un medio material a través del cual viajar. Las ondas electromagnéticas, incluyendo rayos X, ondas de radio y luz visible, pueden viajar a través del vacío del espacio vacío. Estas ondas se mueven a la velocidad de la luz y consisten de vibrar campos eléctricos y magnéticos orientados en ángulos rectos entre sí.
The answer is 0.87 atm
B. If one bulb burns out, then none of the others will light up.
C. It is difficult to tell which path an electric charge is following in a series circuit
D. Only one bulb can be connected in a series circuit.
If one bulb goes out then all the others won't light up because electricity will be cut off. It's a disadvantage because in a parallel circuit if one bulb burns out all the others will still be on because they won't be affected. I hope I've helped you ☺
The forest ecosystem will regain back its natural ecology compared to burning of the forest and other illegal activities done to the forest. And also, some of the animals living in that forest will live and those that are endangered will not be threatened.
Answer:
B
Explanation:
To find the time, tr, it takes for the runner to cross the finish line, we can use one of the kinematic equations that relate displacement, initial velocity, acceleration, and time. Since the runner starts from rest, his initial velocity is zero, so we can use the equation:
Δx=v0t+21at2
where Δx is the displacement, v0 is the initial velocity, a is the acceleration, and t is the time. Plugging in the given values of Δx=d, v0=0, and a=ai, we get:
d=0+21ait2
Solving for t, we obtain:
t=ai2d
This is the expression for the time, tr, it takes for the runner to cross the finish line, in terms of d and ai.