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-Dominant- [34]
3 years ago
5

All of these are very important parts of studying physics EXCEPT

Physics
2 answers:
Sergeeva-Olga [200]3 years ago
5 0

Answer:

4. deducing and applying natural laws

murzikaleks [220]3 years ago
4 0
4 since i am right.
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Which sentence is correct?
Alexeev081 [22]

Answer:

pretty sure its B if it isnt im so so sorry

Explanation:

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3 years ago
The timing device in an automobile’s intermittent wiper system is based on an RC time constant and utilizes a 0.500 micro F capa
daser333 [38]

Answer:

check 2 photos for answer

check 2 photos for answer

7 0
3 years ago
Blue light of wavelength 450 nm passes through a diffraction grating with a slit spacing of 0.001 mm and makes an interference p
IceJOKER [234]

Answer:

5 fringes option C

Explanation:

Given:

- The wavelength of blue light λ = 450 nm

- The split spacing d = 0.001 mm

Find:

How many bright fringes will be seen?

Solution:

- The relationship between the wavelength of the incident light, grating and number of bright fringes seen on a screen is derived by Young's experiment as follows:

                                   sin(Q) = n* λ / d

Where, n is the order of bright fringe. n = 0, 1, 2, 3, ....

- We need to compute the maximum number of fringes that can be observed with the given condition and setup. Hence we will maximize our expression above by approximating sin(Q).

                                   sin(Q_max) = 1

                                   Q_max = 90 degree

- Hence, we have:

                                    n = d / λ

- plug values in            n = 0.001 *10^-3 / 450*10^-9

                                    n = 2.222

- Since n order number can only be an integer we will round down our number to n = 2.

- Hence, we will see a pair of bright fringes on each side of central order fringe.

- Total number of fringes = 2*2 + 1 = 5 fringes is total ... Hence, option C

8 0
3 years ago
A 100g block is initially compressing a spring 5.0 cm. The spring launches the block 50cm horizontally along the ground with a f
Setler [38]

Answer:

7200 N/m

Explanation:

Metric unit conversion

100g = 0.1 kg

5 cm = 0.05 m

50 cm = 0.5 m

As the block is released from the spring and travelling to height h = 1.5m off the ground, the elastics energy is converted to work of friction force and the potential energy at 1.5 m off the ground

The work by friction force is the product of the force F = 15N itself and the distance s = 0.5 m

W_f = F_fs = 15*0.5 = 7.5 J

Let g = 10 m/s2. The change in potential energy can be calculated as the following:

E_p = mgh = 0.1*10*1.5 = 1.5 J

Therefore, as elastic energy is converted to potential energy and work of friction:

E_e = W_f + E_p

kx^2/2 = 7.5 + 1.5 = 9 J

k = 9*2/x^2 = 18/0.05^2 = 7200 N/m

6 0
3 years ago
ANYONE who is good with the consequences of Population growth PLEASE help me!!
alekssr [168]

in china, there is a family limit for only having 1 child

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3 years ago
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