Answer:
La ciencia y la tecnología se complementan porque la tecnología necesita que la ciencia sea una cosa y la ciencia se usa en tecnología
Explanation:
Answer:
The centripetal acceleration of the runner as he runs the curved portion of the track is 0.91 m/s²
Explanation:
Given;
distance traveled in the given time = 200 m
time to cover the distance, t = 29.6 s
speed of the runner, v = d / t
v = 200 / 29.6
v = 6.757 m/s
The centripetal acceleration of the runner is given by;
where;
r is the radius of the circular arc, given as 50 m
Substitute the givens;
Therefore, the centripetal acceleration of the runner as he runs the curved portion of the track is 0.91 m/s².
Answer:
A black body radiator is an idealized body that absorbs all incoming electromagnetic radiation (thus the name of "black body").
A black body radiator is an object that has a lot of thermal energy, and it irradiates its thermal energy in the form of black body radiation (thermal radiation emitted by a black body).
a) Then, we could go to the trivial case of a mirror, a mirror is a poor blackbody radiator because a mirror reflects most of the incoming electromagnetic radiation, thus, a mirror is a really bad approximation for a black body, then a mirror is a poor black body radiator.
b) Any electromagnetic wave is a light wave (there exists "light" that we can not see). A black body radiator irradiates energy, and this radiation is in the form of electromagnetic waves, which are in essence, light waves.
<u>Answer:</u>
The altitude of planet = 5989.198 km
<u>Explanation:</u>
We know that centripetal acceleration, 
, where v is the velocity and r is the radius. In this case both acceleration and velocity is given, so we can find radius of satellite.
v = 
a = 
So, 
We have diameter of earth = 12713 km
Radius of earth = 12713/2 = 6356.5 km
The altitude of planet = Radius of planet - radius of earth
= 12345.698 - 6356.5
= 5989.198 km
The average force on the shell while it is in the gun barrel is 10,869,833.33N.
<h3>HOW TO CALCULATE FORCE?</h3>
Force applied on an object can be calculated by multiplying the mass of the object by its acceleration.
However, the acceleration needs to be calculated by using the following equation:
v² - u² = 2as
Where;
- v = final velocity
- u = initial velocity
- a = acceleration
- s = distance
770² - 0² = 2 (a)(1.5)
592900 = 3a
a = 197633.3m/s²
Force = 55kg × 197633.3m/s²
Force = 10,869,833.33N
Therefore, the average force on the shell while it is in the gun barrel is 10,869,833.33N.
Learn more about force at: brainly.com/question/26115859
