Answer:
the direction of acceleration of the vehicle is the same direction of its velocity of car
s acceleration has the opposite direction to the car speed.
Explanation:
The initial acceleration of the car can be calculated with
v = v₀ + a t
a = (v-v₀) t
indicate that the initial velocity is zero (v₀ = 0 m / s)
a = v / t
a = 300 / t
the direction of acceleration of the vehicle is the same direction of its acceleration movement.
When the car collides with the wall, it exerts a force in the opposite direction that stops the vehicle, therefore this acceleration has the opposite direction to the car speed. But your module must be much larger since the distance traveled to stop is small
Answer: It is identified with color, texture, boiling point, melting point and freezing point
Explanation:
<span>No. Solids can't undergo convection, the reason is that convection works because moving molecules which are hotter and faster have a lower density and therefore rise to the surface. With a solid now, the molecules don't move they can only vibrate.
Therefore solids conduct.</span>
Answer:
The period of an oscillator in simple does not depend on gravity as one can see from measurement of a horizontal spring.
Let w be angular frequencu (omega)
w = (k / m)^1/2 for an object in SHM
w2 = (4 k / 3 m)^1/2 = 1.15 (k / m)^1/2 = 1.15 w
The angular frequency for the new oscillator is 1.15 that of the original
w = 2 pi * f = 2 pi / T
the period T = 2 pi / w = 2.8 s (given)
T2 / T = w / w2 = 1 / 1.15 = .87
T2 = .87 * 2.8 = 2.43 s
Based on the given picture above, I can say that this kind of rock is what we call a PRECARIOUS BOULDER, or in simpler terms, it is called a BALANCING ROCK. It is a geological formation that occurs naturally. This can be found in several parts of the earth. How the rock is kept balanced on its tiny pedestal is that it is firmly attached to a base rock or a stem.