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larisa86 [58]
3 years ago
6

A base is a substance that can_____ a hydroxide ion A) Bond with B) Accept C) Donate

Physics
1 answer:
kirill [66]3 years ago
4 0
A) bond with a hydroxide ion
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Which term is defined as the ratio of the speed of light in a vacuum to the speed of light in the material it is passing through
KATRIN_1 [288]

Answer:

Index of refraction

Explanation:

or refractive index

5 0
3 years ago
A busy waitress slides a plate of apple pie along a counter to a hungry customer sitting near the
Ostrovityanka [42]

Answer:

a. 0.5307 sec

b. 0.4458 m

c. =v_x=0.84\ m/s\ ,\ v_y=5.2\ m/s

Explanation:

Horizontal Motion

It describes the dynamics of an object thrown horizontally in free air. The initial horizontal velocity is maintained all the time since no horizontal forces are acting. The initial vertical velocity is zero at launch time, but it grows downwards powered by the acceleration of gravity.  

The object hits the ground at a distance x from the point of launching, after having traveled a vertical distance y_o, taking a time t to complete the travel. The formulas who relate the different magnitudes are

v_x=v_o

The horizontal velocity v_x is the same regardless of the elapsed  time

v_y=gt

x=v_ot

\displaystyle y=y_o-\frac{gt^2}{2}

The plate of apple pie left the counter at a speed  

v_o=0.84\ m/s

The counter is y_o=1.38\ m high.

a.

Knowing that

y_o=1.38\ m

We use this formula to compute t

\displaystyle y=y_o-\frac{gt^2}{2}

At the moment when the plate hits the floor y=0

\displaystyle 0=y_o-\frac{gt^2}{2}

\displaystyle y_o=\frac{gt^2}{2}

Solving for t

\displaystyle t=\sqrt{\frac{2y_o}{g}}

\displaystyle t=\sqrt{\frac{2(1.38)}{9.8}}

t=0.5307\ sec

b.

x=(0.84)(0.5307)

x=0.4458\ m

c.

v_x=0.84\ m/s

v_y=(9.8)(0.5307)

v_y=5.2\ m/s

3 0
4 years ago
What is Snell law of refraction????​
Morgarella [4.7K]

\huge\mathbb\colorbox{black}{\color{white}{⏫FORMULA⏫}}

\huge\red {\underline { \overline{ \bf \mid\: \:  \: ↓ANSWER↓ \: \: \mid}}}

Explanation:

Snell's law (also known as Snell–Descartes law and the law of refraction) is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air.

8 0
3 years ago
Read 2 more answers
What is the weight of a 2.06 kg text book. show work please
salantis [7]

The weight of anything is (mass) x (gravity in the place where the thing is).

             Gravity on Earth is about 9.8 newtons per kilogram, so on Earth,
             the weight of the book is

                          (2.06 kg) x (9.8 N/kg) = <em>20.19 newtons</em> .


Another way to get around it is:  

               On Earth, 1 kg of mass weighs about 2.205 pounds, so on earth,
               the weight of the book is

                         (2.06 kg) x (2.205 pounds/kg) = <em>4.54 pounds </em>.


7 0
3 years ago
What is true for ALL of the examples of electromagnetic waves?
nasty-shy [4]
A they all move the same speed in a vacuum this is because in a the photons don't bump in to anything
5 0
3 years ago
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