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Artyom0805 [142]
3 years ago
11

Sociologist use tools such as investigation and data collection to make their study more

Physics
1 answer:
In-s [12.5K]3 years ago
8 0
They use data that they collect in order to make their study more accurate.
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The total capacitance of two 15uF capacitors<br> connected in parallel is
Yuri [45]

The total capacitance of two 15uF capacitors  connected in parallel is <em>30 μF</em> .

7 0
3 years ago
How much power is required to lift a 60 kg bed to the top of a 3 meter flight of stairs in 10 seconds?
Zigmanuir [339]

Answer:

176.58Watts

Explanation:

Power= work done /time

Where mass(m)=60kg

Height (h) =3m

Time(s)=10s

Force of gravity = 9.81m/s^2

Power=mgh/t

Power= (60kg) * (9.81m/s^2) * (3m)/10s

Power= 176.58Watts

8 0
3 years ago
Why does the frequency of a siren get higher as an ambulance using that siren gets closer
Nadya [2.5K]
The frequency of a wave becomes higher due to the object moving at a fast pace coming towards you with shorter wavelengths  (depending on the speed) aka the Doppler Effect. 
Hope this helps
3 0
3 years ago
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How can you produce more power than an excavator?
suter [353]
Just do energy spent divided by time to get your answer :). With this we can say a human might be able to!
8 0
3 years ago
An unstrained horizontal spring has a length of 0.36 m and a spring constant of 320 N/m. Two small charged objects are attached
lakkis [162]

Answer:

1.been both -ve charged or both +be charged particles

2. 3.52mC

Explanation:

For the charge particle to cause an extension or movement of the string from its unrestrained position they would have been both -ve charged or both +be charged particles that's because like charges repel.

Now the Force sustain by the extended string is

F = Ke;

Where K is the force constant of the string, 320 N/m

e is the extension,0.033 m

F = 320 × 0.033 =10.56N

2.But according to columns law of charge;

F = kQ1 Q2

But Q1=Q2{ since the charge are of the same magnitude}.

Hence F = KQ^2

Where K is columns constant =9×10^9F/m

Hence Q=√F/K

Q= √10.56/9×10^9

=3.52×10^-3C

= 3.52mC

8 0
3 years ago
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