3 years ago

PLEASE HELP ITS RLLY URGENT PLEASE:((((

Physics

2 answers:

SSSSS [86.1K]3 years ago

8 0

Answer:

8. Man-made object that orbits Earth

9. Red Giant

10. Super Red Giant

Sergio [31]3 years ago

4 0

Answer:

1. A satellite is an object which has been sent into space in order to collect information or to be part of a communications system. Satellites move continually round the Earth or around another planet.

2. red giant

3.red giant.

Explanation:

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hichkok12 [17]

Answer:

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$K=\frac{1}{2}*49kg*(3.3m/s^2)^2\\K=0.27kJ$

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$U_g-W_f=K_f\\W_f=-(\Delta K+\Delta U)\\W_F=5.3kJ-0.27kJ\\W_F=-5.0kJ$

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$W_f=F_f.h.cos(\theta)\\$

the angle of the force is 180 degrees because it's against the movement:

$F_f=\frac{W_f}{h.cos(\theta)}\\\\F_f=\frac{-5.0kJ}{11m.cos(180^o)}\\\\F_f=0.45kN$

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