All categories

3 years ago

Can someone plz help me no links plz

Physics

1 answer:

Orlov [11]3 years ago

7 0

Answer:

Im doing edge too rn-

Explanation:

Can you tell me the drop down options

You might be interested in

This table shows the speed of four race horse traveling on a race track in miles per hour which list is in order from the horse

Ivan

Answer:

A) Miss Sally, Blaze, Lightning, Cinnamon

Explanation:

See photo attached

7 0

3 years ago

Describe briefly with used of practical knowledge the effect of the voltage stores across and current

DaniilM [7]

Answer:

Answer in explanation

Explanation:

The path of flow of circuit is called electric circuit. In an electric circuit, resistances are connected in two different ways, which are:

1- Series Combination of Resistances

2- Parallel Combination of Resistances

Series combination of resistances

In series combination resistors are connected end to end, and there is only one path for the flow of current.

Characteristics Of Series Circuit:

1. In series circuit there is only one path for the flow of current.

2. Same amount of current flows through each resistor.

I = I₁ = I₂ = I₃ = In

3. Total voltage of the battery is equal to the sum of voltages across each resistor.

V = V₁ +V₂ + V₃ + ... + Vn

4. In series combination the combined resistance of the resistors can be obtained by adding the value of each resistor.

R = R₁ + R₂ + R₃ + … + Rn

Parallel combination of resistances

Resistances are set to be connected in parallel, when each of them is connected directly from the terminals of electric source.

Characteristics Of Series Circuit:

1. There are more than one path for the flow of current.

2. The value of potential difference remains constant on each resistor.

V = V₁ = V₂ = V₃ = Vn

3. Total current is equal to the sum of current passing through each resistor.

I = I₁ + I₂ + I₃ +...+ In

4. Reciprocal of equivalent resistance is equal to the sum of reciprocals of resistances connected in parallel.

1/R = 1/R₁ + 1/R₂ + 1/R₃ + … + 1/Rn

The circuit diagrams are in attachment.

7 0

3 years ago

The Hi line of the Balmer series is emitted in the transition from n = 3 to n = 2. Compute the wavelength of this line for l H a

irina1246 [14]

Answer:

$\lambda=550\ nm$

Explanation:

The Hi line of the Balmer series is emitted in the transition from n = 3 to n = 2 i.e. $n_i=3$ and $n_f=2$

The wavelength of Hi line of the Balmer series is given by :

$\dfrac{1}{\lambda}=R(\dfrac{1}{n_f}-\dfrac{1}{n_i})$

$\dfrac{1}{\lambda}=1.09\times 10^7\times (\dfrac{1}{2}-\dfrac{1}{3})$

$\lambda=5.50\times 10^{-7}\ m$

$\lambda=550\ nm$

So, the wavelength for this line is 550 nm. Hence, this is the required solution.

6 0

3 years ago

Roberto was testing how light interacted with a material he had just developed. The initial speed of light was 3.0 × 108 m/s. Th

Zanzabum

The answer to the question would be Refraction.

as we know the two possible answers are refraction and reflection. The questions shows a decrease in speed thus being refraction as a ray in a reflection would not lose its speed. Hope this helps!

4 0

3 years ago

Read 2 more answers

An elastic band is hung on a hook and a mass is hung on the lower end of the band. When the mass is pulled downward and then rel

Svetllana [295]

To get that, find the time when slope equals to 0, use the derivate theory from calculus.

s = 8 cos t + 9 sin t, t ≥ 0
s' = -8 sin t + 9 cos t (this is slope)
0 = -8 sin t + 9 cos t
8 sin t = 9 cos t
tan t = 9/8
t = 48.37 seconds

4 0

3 years ago