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3 years ago

What kinds of bonds can happen between the elements of a compound

Physics

1 answer:

Anit [1.1K]3 years ago

4 0

What kinds of bonds can happen between the elements of a compound?

<span>Covalent and Ionic</span>

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Find the speed for Barkely, the dog, if he runs 5.5 miles in 3 hours

amm1812

Answer: B

Explanation:

5.5/3

6 0

3 years ago

A mass free to vibrate on a level, frictionless surface at the end of a horizontal spring is pulled 35 cm from its equilibrium p

saul85 [17]

Answer:

0.67 s

Explanation:

This is a simple harmonic motion (SHM).

The displacement, $x$ , of an SHM is given by

$x = A\cos(\omega t)$

A is the amplitude and $\omega$ is the angular frequency.

We could use a sine function, in which case we will include a phase angle, to indicate that the oscillation began from a non-equilibrium point. We are using the cosine function for this particular case because the oscillation began from an extreme end, which is one-quarter of a single oscillation, when measured from the equilibrium point. One-quarter of an oscillation corresponds to a phase angle of 90° or $\frac{\pi}{4}$ radian.

From trigonometry, $\sin A =\cos B$ if A and B are complementary.

At $t = 0$ , $x = 3.5$

$3.5 = A\cos(\omega \times0)$

$A =3.5$

$x = 3.5\cos(\omega t)$

At $t = 0.12$ , $x = 1.5$

$1.5 = 3.5\cos(0.12\omega)$

$\cos(0.12\omega)=\dfrac{1.5}{3.5}=0.4286$

$0.12\omega =\cos^{-1}0.4286$

$0.12\omega = 1.13$

$\omega = 9.4$

The period, $T$ , is related to $\omega$ by

$T = \dfrac{2\pi}{\omega} = \dfrac{2\times3.14}{9.4}=0.67$

5 0

3 years ago

What is your favorite thing to eat? is it healthy or unhealthy ?

denpristay [2]

Answer:

sometimes I like to eat unhealthy and healthy my healthy are fruits granola a grapes, strawberries, blueberries or make smoothie out fruits my unhealthy is pizza, streak fries, with everything on the side. so ways eaanation:

4 0

3 years ago

Calculate the amount of force required to produce motion in a car of 1000kg with an acceleration of 5m/s square.

atroni [7]

Answer:

5000 N

Explanation:

F=ma

=1000*5

=5000N

4 0

3 years ago

Read 2 more answers

You throw a ball downward from a window at a speed of 2.0m/s. How far has it fallen in 3 seconds?

bekas [8.4K]

Let's just assume that you throw the ball with an initial speed of 2 m/s instead of dropping it like free falling.
a=9.81 m/s^2
Vi= 2 m/s
t= 3 x

we use the formula
d = (Vi)(t) + (1/2)(a)(t)^2
d= (2)(3) + (1/2)(9.81)(9)
d=50.145 m

3 0

3 years ago