Explanation:
Draw a free body diagram of the toolbox. There are two forces:
Weight force mg pulling down,
and applied force F pulling up.
Sum of forces in the y direction:
∑F = ma
F − mg = ma
45 N − 15 N = (3 kg) a
a = 10 m/s²
The answer should be B. It's possible the answer key has a mistake.
Answer:
AB
Explanation:
Same speed. Shorter wavelengths.
Answer: 0.1 m, 0.0583 m
Explanation:
We are given that:
Frequency for throat= 800 Hz
Frequency for mouth= 1500 Hz
Sound speed= 350 m/s
We have to find the corresponding lengths.
We have
f= 
or L=
For the throat= L= 
= 0.1 m
For the mouth= L= 
= 0.0583 m
the answer is Titan
explanation: titan fascinates scientists because of its thick atmosphere — which is mostly made of nitrogen gas
1) Sleeping with an electronic in charge right next to you.
2) Leaving a charger plugged in all the time especially near liquid substances.
