Answer:
See explanation
Explanation:
A pure sample is known to give one spot on a chromatogram. This is the first indication that the substance is a pure substance. Since the student saw a single spot, the unknown substance is pure.
Subsequently, the substance can be boiled since it is a liquid. Impure substances boil over a range of temperatures. If the substance is pure, it will have a sharp boiling point which can be compared with boiling points of known substances recorded in literature hence the substance can be correctly identified.
Answer:
La velocidad de la luz en el vacío es una constante universal con el valor de 299 792 458 m/s (186 282,397 mi/s),aunque suele aproximarse a 3·108 m/s. Se simboliza con la letra c, proveniente del latín celéritās (en español, celeridad o rapidez).
¿Cuál es la consecuencia que a velocidad de la luz sea constante?
Respuesta. En modificaciones del vacío más sutiles, como espacios curvos, efecto Casimir, poblaciones térmicas o presencia de campos externos, la velocidad de la luz depende de la densidad de energía de ese vacío.
Answer:
Explanation:
We can use the following kinematics equation to solve this problem:
Solving for :
The wall will push back with an equal and opposite force, as defined by Newton's Third Law, so the wall will exert -200 N of force
Answer:
Hey hi,
Explanation:
<em>Parachutes are designed to reduce terminal Velocity, so when a person is near to ground will have less speed and the avg speed of person hitting the ground </em><em>with</em><em> parachutes will have 17 mph so which makes the person to easily walk off or fell sleep. </em>
<h3>
Hope u get the point Please mark it as brainliest!</h3>