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3 years ago

A helicopter's speed increases from 30m/s to 40m/s in 5 seconds. What is the acceleration of this helicopter?

Physics

1 answer:

MrMuchimi3 years ago

8 0

Answer: hhhhhhhhhhhhhhhhhhhhhhhfffffffffffff

Explanation:gggggggggggggggggggggggggggggggggggggggggggg b

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You have a resistor of resistance 200 ? and a 6.00-?F capacitor. Suppose you take the resistor and capacitor and make a series c

Ne4ueva [31]

Answer:

eazy

Explanation:

hi bro it is very hard so I can't help and I don't the answer

4 0

4 years ago

An electronics technician wishes to construct a parallelplate capacitor using rutile (k=100) as the dielectric. The area of the

My name is Ann [436]

Given k=100, Area if plate A = 1.00 cm2

$= 1 x (10-2)2 m^{2}$

Thickness of rutile $ds = t = 1.00 mm$

$= 1 x 10-3 cm$

Without any dielectric medium capacitance of a parallel plate capacitor is c = oAd

When a dielectric is placed between capacitors plates then capacitance c1 = KoAd

Here $d = t = 1 x 10-1 cm$ , $o = 8.854 x 10-12 c^{2} m^{-2} N$

Now $c1 = 100 X 8.859 X 10^{-12} X 1 X (10-2)^{21} X 10^{-2}$

$= 8.859 X 10-1910-3= 8.85 X 10-11 F= 8.85 X 10-12 F$

$C1 = 88.5 X 10-12 F$

$C1 = 88.5 PF$

Correct Option: A

What purposes serve parallel plate capacitors?

The following are some uses for parallel plate capacitors:

This kind of capacitor is utilized in rechargeable energy systems such as batteries.
These capacitors are used in systems for dynamic digital memory.
Such capacitors are used in pulsed laser and radar circuits.

To learn more about Parallel plate capacitors, visit:

brainly.com/question/12733413

#SPJ4

5 0

2 years ago

When a charged capacitor is connected to earth, it discharges and the voltage V across it will decrease according to the equatio

algol [13]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

For convenience write RC=D and solve the ODE dV/dt=-V/D which gives
V=Ae^(-t/D) by separating the variables. 
When t=0, V=10 and this gives A=10, 
when t=2, V=1 giving 1=10e^(-2/D) and you can find D by taking lns of 
each side. D=RC, so R=D/C 
You should get 2.90X10^5 ohms

4 0

4 years ago

What are the main ideas of physical science

scoray [572]

Physical science is defined as the study of observable phenomena in the universe.The main idea of physical science is known as the "scientific method". 

This method states: 

1. observe a "real" ( not imaginary ) phenomena. 

2. make a hypothesis ( or theory / idea ) that EXPLAINS this phenomena. 

3. conduct a real experiment to test this hypothesis. 

4. confirm that the experiment validates the original hypothesis and if necessary amend the theory. 

This method is responsible for virtually every scientific explanation of every kind. It has worked so well that the very communication you are having with me is a result of the wonders of physical science. 

Hope your question was answered :)

5 0

3 years ago

A charge is moving in a magnetic field that points to the

padilas [110]

Up, left, into the screen

3 0

4 years ago