3 years ago

8.

Physics

2 answers:

garik1379 [7]3 years ago

7 0

Answer:

respond as well as question the cube of volume 5 xml for calcium

Arisa [49]3 years ago

5 0

Answer:

can you translate that plz

Explanation:

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The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W=4250

Rom4ik [11]

Answer: A) 45503 N b) 16290 N

Explanation:

L = W / cos 21 = 42500 / cos 21 = 45503 N

R = L sin 21 = 45503 x sin 21 = 16290N

3 0

3 years ago

There is a simple relationship between the energy for a photon of light Ephoton in units of eV (electron volts) and its waveleng

Eva8 [605]

Answer:

$\lambda=620\ nm$

$E_p=1.9682\ eV$

$E_p=206.67\ eV$ is the photon energy of an x-ray

Explanation:

Given:

Energy of photon, $E_p=2\ eV$

Then according to given:

$E_p=\frac{1240}{\lambda}$

$2=\frac{1240}{\lambda}$

$\lambda=620\ nm$ is the wavelength

Again,

Energy of photon, $E_p=?$

wavelength of the light, $\lambda=630\ nm$

$E_p=\frac{1240}{630}$

$E_p=1.9682\ eV$

<u>Now, photon energy for an x-ray:</u>

wavelength, $\lambda=6\ nm$

$E_p=\frac{1240}{6}$

$E_p=206.67\ eV$ is the photon energy of an x-ray

3 0

3 years ago

The velocity of the transverse waves produced by an earthquake is 5.08 km/s, while that of the longitudinal waves is 8.3312 km/s

ASHA 777 [7]

Answer:

727.67 km

Explanation:

Sine they have Same distance D

distance = speed * time

D = 5.08t

D = 8.3312(t+55.9)

5.08t = 8.3312(t+55.9) t in

3.2512t = 465.71

t = 143.2s

Subtitute t

D=5.08 t

= 5.08 × 143.2

= 727.67km

7 0

3 years ago

What are the different isotopes

Norma-Jean [14]

Answer:

Isotopes can both be the same element but have a different number of electrons

Explanation: not sure if more was supposed to be there, but i tried

6 0

3 years ago

How much work is done when you lift a 5kg bag of groceries 1.5 m?

olga55 [171]

Answer:

7.5J

Explanation:

5x1.5=7.5

8 0

3 years ago