The process by which solids vaporize without first becoming a liquid is called.

A child’s toy sits on the bottom of a swimming pool in which the water depth is d=1.8 m. To a child standing at the pool edge, t

navik [9.2K]

Answer:

Horizontal distance is 1.28 + 2.04 = 3.32 m

Explanation:

Given data:

from below figure

Applying Pythagoras theorem

from Snell's law

$\frac{sin i}{sin r} = \frac{n_2}{n_1} = \frac{\frac{EF}{AB}}{\frac{DE}{BD}}$

$1.33 =\frac{ \frac{2.04}{\sqrt{(3.5 -1.8)^2 + 2.04^2}}}{\frac{x}{\sqrt{1.8^2 + x^2}}}$

solving for x we have

$x^2 = 1.626$

x = 1.28

Horizontal distance is 1.28 + 2.04 = 3.32 m

8 0

3 years ago

Tula para sa parents

Nadusha1986 [10]

Para sa aking Mahal na Magulang

Tula ni Eden Diao Apostol

Ang buhay kong ito’y sa inyo nagmula

Pangalawa sa Diyos na s’yang lumikha

Utang ko sa inyo ang aking hininga

Minahal, hinubog ng inyong kalinga.

Mga sakripisyo’y sadyang hindi biro

Mula ng ako’y iniluwal sa mundo

Pag-ibig na iniukol sa ‘ki’y totoo

Pagmamahal ninyo’y nagsilbing lakas ko.

Ako’y tinuruan ng magandang asal

Sa gitna ng hirap ako’y pinag-aral

Upang ‘di mapariwara ang aking buhay

Diplomang natanggap sa inyo ini-alay.

Ngayon ang buhay ko ay sadyang kay-palad

Pangarap ko’y unti-unting natutupad

Ito’y bunga ng ‘nyong dakilang paglingap

Sa ‘king puso’y walang hanggang pasalamat.

Pagkalinga ng Magulang

Tula ni Laurence B. Reyes

Saking pag unlad baon ang inyong aral

Bilang papuri at sa inyo ay parangal

Ang walang katapusang pasasalamat

Ang pag ibig at karangalan ang dapat.

Sa aking pagmulat sa mundo ng kaligayahan

Kayo ang aking lagging nadadamhan

Sa aking paglaki dama pa rin ang aruga

Hindi ko makalimutan ang pagmamahal at aruga

Sa pag aaruga at pag aalaga

Sa pag ibig at iyong pagkalinga

Sadyang tinakda ng ating kapalaran

Patungo lamang sa tuwid na daan.

Ang pagbibigay ng natatanging aral

Ang inyong anak ay nabusog sa pangaral

Ang inyong pag ibig na para sa akin

Tanging kabutihan ang nais hatid.

Naging daan patungo sa kabutihan

Naging daan ng pag ibig sa tahanan

Kayo ang pundasyon, mabuting samahan

Maraming salamat sa pagmamahal.

8 0

3 years ago

Read 2 more answers

Atom X contains seven protons and seven neutrons. atom Z contains seven protons and eight neutrons. which of the following state

stiks02 [169]

Answer:

The correct answer is option A: they are isotopes.

Explanation:

From atom X we know that the number of protons is 7 and the number of neutrons is 7 and from atom Z we know that the number of protons is 7 and the number of neutrons is 8.

Since the number of protons of atom X and atom Z is the same, we have that atom X and atom Z is the same element. The difference in the number of neutrons tells us that atom X and atom Z are isotopes. Remember that an isotope is one element that has atoms with different numbers of neutrons.

The mass number is given by:

$A = p + n$

Where <em>n</em> is the number of neutrons and <em>p </em>is the number of protons.

For atom X and atom Z we have:

$A_{x} = 7 + 7 = 14$

$A_{z} = 7 + 8 = 15$

Hence, they have a different mass number.

We know that the element with 7 protons is nitrogen. The first isotope is $^{14}_{7}N$ and the second isotope is $^{15}_{7}N$ . Both isotopes are stables (they are not radioactive).

Therefore, the correct answer is option A: they are isotopes.

I hope it helps you!

3 0

3 years ago

With enough time, would an ice pop melt on a cool autumn day? Explain.

Ber [7]

Yes, an autumn day isn’t cold enough to keep an a ice pop at freezing temperatures.

3 0

3 years ago

Drag each statement to the correct location on the table.

Brut [27]

Answer:

Solid:

- has definite shape and volume.

- change to liquid on heating.

Liquid:

- has definite volume but does not have definite shape .

- changes to solid on cooling.

Gas :

- does not have definite shape or volume.

- change to liquid on cooling

8 0

3 years ago