the potential energy of an object at an altitude of 10 Meters is 100 joules . the mass of the object is?
1. the potential energy of an object at an altitude of 10 Meters is 100 joules . the mass of the object is?
Penjelasan:
h = 10 m
PE = 100 J
m = ... kg
PE = m . g . h
100 = m . 10 . 10
100 = m . 100
m = 100/100 = 1 kg
2. the potential energy of an object at an altitude of 10 Meters is 100 joules . the mass of the object is?
diketahui :
Ep = 100 J
h = 10 m
v = 4 m/s
g = 10 m/s²
dit : Ek ?
dijawab :
Ep = m x g x h
100 = m x 10 x 10
100 = m x 100
m = 100/100
m = 1 kg
Ek = 1/2 m x v²
= 1/2 x 1 x 4²
= 1/2 x 1 x 16
= 8 J
____________________________
--------------------FAXAZ--------------------
3. 8. a city is located at a height of 138 m above sea levelwhile a town is at a height of 51 m below sea level.represent the altitude of the town using a negativenumber. hence, find the difference in altitudebetween the city and the town.
Jawaban:
1. -51m
2. 189 m
Penjelasan dengan langkah-langkah:
1. 51m in negative number is - 51m
2. 138 - (-51) = 138 + 51 = 189m
note : jika bingung kenapa saya menuliskan -51 di no 2, itu karena ada tulisan "below sea level" pada penjelasan ketinggian kota, yang berarti dibawah permukaan laut (minus)
maaf jika salah
4. translate the sentences below into indonesian, "Surabaya is in the east of semarang"
Jawaban:
terjemahkan kalimat di bawah ini ke bahasa Indonesia,
"Surabaya ada di sebelah timur semarang"
Jawaban:
"Surabaya berada di sebelah timur semarang"
Penjelasan:
this translate
5. In the figure below, the value of x is..... cm
20
ok sorry salah
ok sorry salah
kalo benar follownyak
6. 4. The ball is ... the flower pot. A. in front of B. behind C. next to D. below 5. The birds are flying ... tea tree. A. on B. in C. below D. in front of 6. The fish is... The aquarium. A. in B. on C. below D. in front of
Jawaban:
4)C Next to
5)D in front of
6)A in
7. in the figure below,the value of x is.... cm
6 / 18 = x / x + 16
18x = 6x + 96
18x - 6x = 96
12x = 96
x = 96/12
x = 8
8. 1. the potential energy of an object at an altitude of 10 Meters is 100 joules . the mass of the object is?2. ( from question no. 1 ) if the object is moving at 4m/s , what is the kinetic energy of the object? tolong bantu jawab no. 2
Jawaban:
1. Given: h=10m, PE=100J, g=10m/s
Ask: m=?
Ans: PE=mgh
100=m.10.10
100=100m
m=1kg
2. Given: v=4m/s, m=1kg
Ask: KE=?
Ans: KE=1/2mv^2
KE=1/2.1.4^2
KE=1/2.1.16
KE=1/2.16
KE=8J
9. ADVANCED LEVEL 12. In quadrilateral ABCD, AB = 3.2 cm, BC = 5.1 cm, LCBD = 34.4º and the length of the diagonal BD is 7.5 cm. Given further that the area of AABD is 11.62 cm² and angle ABD is obtuse, find (i) the area of ABCD, (ii) angle ABD.
Jawaban:
Luas Segitiga BCD = 10.805 cm²
Sudut ABD = 104.5°
Penjelasan dengan langkah-langkah:
GIVEN:
AB = 3.2 cm
BC = 5.1 cm
BD = 7.5 cm
[tex]\angle CBD = 34.4^{\circ}[/tex]
[tex] \text{area \:of} \triangle \: abd = 11.62 \: {cm}^{2} [/tex]
ABD is obtuse.
Find:
a) Area of BCD
b) angle of ABD
EXPLANATION:
pada segitiga yang diketahui 2 sisi dan 1 sudutnya, luas segitiga dapat dihitung menggunakan:
[tex] \boxed{ \frac{1}{2} \times a.b. \sin(c)}[/tex]
dimana:
c = sudut pada segitiga
a dan b = sisi sisi yang mengapit c
sehingga pada segitga BCD:
a dan b = BC dan BD
a)L.BCD
[tex] = \frac{1}{2} \times bc \times bd \times \sin(bcd) [/tex]
[tex] = \frac{1}{2} \times 5.1 \times 7.5 \times \sin(34.4) [/tex]
[tex] = 19.125 \times 0.564967[/tex]
[tex] = 10.805 \: {cm}^{2} [/tex]
b)SudutABD
[tex] \text{luas \: abd} = \frac{1}{2} \times ab \times bd \times \sin(abd) [/tex]
[tex]11.62 = \frac{1}{2} \times 3.2 \times 7.5 \times \sin( \angle \: abd) [/tex]
[tex]11.62 = 12 \sin( \angle abd) [/tex]
[tex] \sin( \angle abd) = \frac{11.62}{12} [/tex]
[tex] \sin( \angle abd) = 0.9683[/tex]
[tex] \arcsin(0.9683) = \angle abd[/tex]
[tex] \angle(abd) = 75.5 ^{ \circ} [/tex]
atau
[tex] \angle abd = 180 - 75.5 = {104.5}^{ \circ} [/tex]
karena abd sudut tumpul maka sudut abd = 104.5°
10. 2. In the diagram below, ABC is an equilateral triangle of side length 7 cm. The arcs AB, BC and CA are drawn with centres C, A and B respectively. Find the total length, in cm, of the three arcs.
maaf kalo salah :) seharusnya begini caranya karena dia sama sisi, tapi gak tau juga
11. An aircraft descends 150m from an altitude of 650m to avoid turbulence. the plane ascends 830m after the descent. at what altitude is the plane flying now? (pls show the steps/way)
Jawaban:
Think of it this way, the higher the plane flies, the bigger the altitude is, so if the plane descends or goes down the altitude will be less.
Initially, the airplane was at 650m and it descended (went down) 150m which can be written as:
650m - 150m = 500m
that (500m) was the height after the plane descended. After the descent, the plane ascended 830m which means:
500m + 830m = 1330m
So the plane is now flying at an altitude of 1330m
12. in the figure below, the value of x is ... cm
sya pikir 5,5 cm dah kayanya kayanha8
*maaf kalo nggak salah*
13. what is the responding of wishing below: "congratulation on being the winner in storytelling!"
Jawaban:
THANKYOU SO MUCH!
Penjelasan:
Terimakasihbanyak!
14. Discus the cause and effect of littering! Fill in the diagram below as the example!
Diskusikan dan efek, di diagram pada contoh berikut
15. dani is an overseas student from singapore.today is his first day in the university of nusa cendana. complete the dialog below?
Jawaban:
My name isGood morningIndonesiaMe tooMy father worksWhat's her job?Where do you liveWhat do you likeBoth of themNice to meet you, tooPenjelasan:
Dani bertemu Eva, mereka saling tidak kenal. Dani memperkenalkan dirinya. Untuk melengkapi percakapan di atas, gunakan mynameisDani atau I'mDaniEva menjawab sapaan Dani dengan goodmorning atau hellothereDani berasal dari IndonesiaEva juga sama berasal dari IndonesiaIdecidetolivewithhim, himini menunjukkan pada Ayah Dani yang bekerja di salah satu hotel, jadi gunakan myfatherworksEva menanyakan pekerjaan Ibu Dani, what'sherjobEva menanyakan di mana Dani tinggal, wheredoyouliveEva juga menanyakan waktu luang Dani digunakan untuk apa, whatdoyoulikein your spare timeEva menyukai kedua hobinya, bisa dilengkapi dengan I love bothofthem atau I lovemyhobbiesEva mengakhiri obrolan bersama Dani. Untuk melengkapinya, gunakan kata yang sama diucap oleh Dani, nice to meet you menjadi nicetomeetyou,too atau metooSemoga membantu dan maaf jika ada kesalahan dalam pengerjaan soalnya ya... :)
16. In the figure below, the two triangles are similar. What is the value of x? *
5 : 6 = 11 : x
5x = 66
x = 66 : 5
x = 13,2
17. A the article given below is in complete Introduction Television is the most popular form of
Jawaban terjemmahannya : sebuah Artikel yang diberikan di bawah ini adalah televisi pengantar lengkap adalah bentuk paling populer
18. Task Complete the sentences below2(Lengkapilah kalimat-kalimat di bawah ini berdasarkan1.Mira and Dio is in thethe Class2.3.The lake is in the ... of the park.The parking area is in the ... of the park.4.The market is ... the park.The hill is in the ... of the park.5.3Describe the points of compass below(Deskripsikan arah mata angin di bawah ini! Kemud
maaf kalau salah.
aku bisanya cuman di artikan.
yang lainnya bisa berusaha sendiri.
follow aku yaaaaaaaaaaaa.
plissssssss.
akun aku( SRI OKI).
19. A figure is made up of a rectangle and a semicircle as shown in the diagram below. what is the area of the figure?
Jawab:
Area itu bahasa inggris dari Luas, maka
Area of square = S x S
= 7 x 7
= 49 cm²
Radius = Diameter / 2
= 7 / 2
= 3.5 cm
Area of [tex]\frac{1}{2}[/tex] circle = [tex]\frac{1}{2}[/tex] x [tex]\pi[/tex] x r²
= [tex]\frac{1}{2}[/tex] x [tex]\frac{22}{7}[/tex] x 3.5²
= 19.25 cm²
Are of the figure = 49 + 19.25 = 68.25 cm²
Penjelasan:
phi [tex](\pi )[/tex] untuk [tex]\frac{22}{7}[/tex] digunakan apabila jari-jari/radius berkelipatan 7, sedangkan
phi untuk 3.14 digunakan apabila jari-jari/radius tidak berkelipatan 7
20. The text below is in the form of…
Jawaban:
Describe about Dolphins
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