Answer:
Large spherical regions from which no light is detected
Explanation:
A black hole is an object that has an extremely high density such that it possesses very powerful gravitational force that prevents the escape of all objects including light from it, and consumes nearby objects.
Due to the power of the gravitational force of a black hole, at the center, objects are infinitesimally compressed resulting in the inapplicability of the concept of space and time and the location is known as a singularity
Therefore, the search for black holes involves searching for <em>large spherical regions from which no light is detected</em>.
it is a physical phenomenal distance show relationship between distance and time called
Quantum entanglement
Answer:
6 with force advantage
Explanation:
The following data were obtained from the question:
Load = 300N
Effort = 50N
Mechanical advantage =.?
Mechanical advantage is defined by the ratio of load that of the force (effort) applied. It is represented mathematically as:
Mechanical advantage = load/effort
Using the above equation, we can obtain the mechanical advantage of the lever as follow:
Mechanical advantage = load/effort
Mechanical advantage = 300/50
Mechanical advantage = 6
Since a force force was applied to raised the load, therefore, the mechanical advantage is 6 with force advantage.
Answer
given,
mass of spring, m = 1.12 Kg
spring constant , k = 32.3 N/m
speed. v = 3.58 m/s
a) Kinetic energy of the spring
![KE = \dfrac{1}{2}kA^2](https://tex.z-dn.net/?f=KE%20%3D%20%5Cdfrac%7B1%7D%7B2%7DkA%5E2)
the mechanical work done by the spring
![KE = \dfrac{1}{2}mv^2](https://tex.z-dn.net/?f=KE%20%3D%20%5Cdfrac%7B1%7D%7B2%7Dmv%5E2)
now,
![\dfrac{1}{2}kA^2=\dfrac{1}{2}mv^2](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B2%7DkA%5E2%3D%5Cdfrac%7B1%7D%7B2%7Dmv%5E2)
![A^2 = \dfrac{mv^2}{k}](https://tex.z-dn.net/?f=A%5E2%20%3D%20%5Cdfrac%7Bmv%5E2%7D%7Bk%7D)
![A^2= \dfrac{1.12\times 3.58^2}{32.3}](https://tex.z-dn.net/?f=A%5E2%3D%20%5Cdfrac%7B1.12%5Ctimes%203.58%5E2%7D%7B32.3%7D)
A =0.666 m
Amplitude of Oscillation = 0.666 m
b) Total mechanical work done by the spring
E = 7.17 J
Given, a = -3.2m/s²
v = 5m/s
t = 10s
u = ?
Using kinematic equation,
v = u + at
5 = u -3.2* 10
5 = u - 32
u = 32 + 5
u = 37 m/s