Answer:
False
Explanation:
This proposition is false because by example the sun exerts a force over the earth and them are not in contact
claim
[klām]
VERB
state or assert that something is the case, typically without providing evidence or proof.
"he claimed that he came from a wealthy, educated family" · [more]
synonyms:
assert · declare · profess · maintain · state · hold · affirm · avow · aver · [more]
NOUN
an assertion of the truth of something, typically one that is disputed or in doubt.
"he was dogged by the claim that he had CIA links" · [more]
synonyms:
assertion · declaration · profession · affirmation · avowal · averment · protestation · representation · contention · submission · case · allegation · pretense · asseveration
a demand or request for something considered one's due.
"the court had denied their claims to asylum"
Answer:
The articles appearing under "Milestones in Physics" will give an insight into special events or situations that have been decisive for the evolution of Physics
Answer;
D. rocket engines are not dependent on oxygen from the air.
Explanation;
-Jet engines and rockets work on the same principle. They produce thrust through an internal pressure difference and, as explained by Newton’s Third Law of Motion, eject exhaust gases in an equal and opposite direction.
-The main difference between them is that jets get the oxygen to burn fuel from the air and rockets carry their own oxygen, which allows them to operate in space.
Additionally, Jet engines have two openings (an intake and an exhaust nozzle). Rocket engines only have one opening (an exhaust nozzle).
Answer:
the speed of the ball is 10 m/s
Explanation:
Given;
magnitude of exerted force, F = 400 N
mass of the ball, m = 2 kg
radius of the circle, r = 0.5
The speed of the ball is calculated by applying centripetal force formula;
Therefore, the speed of the ball is 10 m/s
