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2 years ago

What is a phone message?

2 answers:

8 0

A message telephone messagemessage a communication usually brie that is written or spoken or signaled; "hesent a three-word <span>message"</span>

nalin [4]2 years ago

8 0

A phone message is a text or an electronic message through devices or bits of data

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When are tides highest? a. during the moon’s first quarter phase b. when the sun, Earth, and the moon are nearly in a line c. du

elena-14-01-66 [18.8K]

<span>Ocean tides are highest when the sun, Earth, and the moon
are nearly in a line. That means at the times of New Moon
and Full Moon.</span>

7 0

2 years ago

Read 2 more answers

When an atom that has no charge loses two electrons, it becomes a

kicyunya [14]

Answer:

positive ion

Explanation:

due to the fact it loses electrons there is 2 more protons than electrons

3 0

2 years ago

A uniform rod is set up so that it can rotate about an axis at perpendicular to one of its ends. The length and mass of the rod

guapka [62]

Answer:

F = 0.179 N

Explanation:

given,

length of the rod = 0.759 m

mass of the rod = 1.03 kg

force = ?

initial angular speed = 0 rad/s

final angular speed = 6.87 rad/s

time interval = 9.95 s

the angular acceleration

$\alpha = \dfrac{\omega_f-\omega_i}{\Delta t}$

$\alpha = \dfrac{6.87 -0}{9.95}$

$\alpha =0.690\ rad/s^2$

moment inertial of the rod

$I =\dfrac{mL^2}{3}$

torque produced by the rod τ = I α

torque is also equal to τ = F L

now,

F L = I α

$F L=(\dfrac{mL^2}{3})\times \alpha$

$F= (\dfrac{1.03\times 0.759}{3})\times 0.690$

F = 0.179 N

5 0

2 years ago

Read 2 more answers

Coherent light with wavelength 597 nm passes through two very narrow slits, and theinterference pattern is observed on a screen

velikii [3]

Answer:

The required wavelength is 1.19 μm

Explanation:

In the double-slit study, the formula below determines the position of light fringes $y_m$ on-screen.

$y_m = \dfrac{m \lambda D}{d}$

where;

m = fringe order

d = slit separation

λ = wavelength

D = distance between screen to the source

For the first bright fringe, m = 1, and we make (d) the subject, we have:

$d = \dfrac{(1) \lambda D}{y_1}$

$d = \dfrac{ \lambda D}{y_1}$

replacing the value from the given question, we get:

$d = \dfrac{ (597 \ nm )\times (3.00 \ m)}{4.84 \ mm} \\ \\ d = \dfrac{ (597 \ nm \times (\dfrac{1 \ m}{10^9\ nm}) )\times (3.00 \ m)}{4.84 \ mm(\dfrac{1 \ m}{1000 \ mm })} \\ \\ d = 3.7 \times 10^{-4} \ m$

In the double-slit study, the formula which illustrates the position of dark fringes $y_m$ on-screen can be illustrated as:

$y_m = (m+\dfrac{1}{2}) \dfrac{\lambda D}{d}$

The value of m in the dark fringe first order = 0

∴

$y_0 = (0+\dfrac{1}{2}) \dfrac{\lambda D}{d}$

$y_0 = (\dfrac{1}{2}) \dfrac{\lambda D}{d}$

making λ the subject of the formula, we have:

$\lambda = \dfrac{2y_o d}{D} \\ \\ \lambda = \dfrac{2(4.84 \ mm) \times \dfrac{1 \ m}{1000 \ mm} (3.7 \times 10^{-4} \ m) }{3.00 \ m}$

$\lambda = 1.19 \times 10^{-6} \ m ( \dfrac{10^6 \mu m }{1\ m}) \\ \\ \lambda = 1.19 \mu m$

5 0

2 years ago

What is the most current NASA mission on Mars?

ivanzaharov [21]

The most recent NASA mission on Mars is Mars Science Laboratory. Its key component was Curiosity rover.
Rover has celebrated his first landing anniversary yesterday (Martian year, that is 687 Earth days).
Curiosity managed to find traces of water on Mars, so it's possible that there used to be some life on Mars.
Since landing Curiosity moved only about 5 miles form the landing site (it suffered wheel damage).

3 0

3 years ago

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