Hi there!
We can begin by calculating the distance remaining after the reaction time.
Δd = vt
Calculate the distance traveled within this time:
Δd = (16)(.79) = 12.64 m
Subtract from the total distance:
150 - 12.64 = 137.66 m remaining
We can use the following equation to solve for the acceleration necessary:
vf² = vi² + 2ad, where vf = 0 since the train will have slowed down to rest.
Rearrange in terms of "a":
0 = vi² + 2ad
(-vi²) = 2ad
(-vi²)/2d = a
Plug in the given values:
(-(16²))/2(137.66) = a
-256/275.32 = -.9298 m/s²
Answer:
2950 m
Explanation:
The radius to which the sun must be compressed to become a black hole is equal to its Schwarzschild radius, which is given by the formula:
where
G is the gravitational constant
M is the mass of the star
c is the speed of light
For the Sun, its mass is
Therefore, its Schwarzschild radius is
Recall that the magnitude of the acceleration of a particle moving with speed in a circular path around a point at a distance away from the particle is given by
So, the satellite has velocity
pointing in the direction tangent to the circular path.
Answer:
Yes
Explanation:
Inside the egg are a series of fluid-filled membranes that permit the embryo to survive: the amnion, allantois, yolk sac, and chorion. Around the chorion is the albumin or "white" of the egg, and an outer shell protects the whole egg, preventing drying while still permitting air to reach the embryo.
The diagram will help you below:
The current in a parallel circuits is not constant throughout the circuit. It varies in each path of a parallel circuit. The components that is place across each other have the same voltage in a parallel circuit. Remember, V=RI.