4. Stone's mass is 200 grams. Youthrow up the stone in 50 m/s. If thegravity acceleration is 10 m/s?,determine the maximum height of thestone
1. 4. Stone's mass is 200 grams. Youthrow up the stone in 50 m/s. If thegravity acceleration is 10 m/s?,determine the maximum height of thestone
Jawaban:
time=50 : 10 =5s
height=50m/s x 5s -- 1/2 x 10m/s x 5 kuadrad 2
S=250 -125 =125 m
2. A stone of mass m is tied to a thread. The thread with a stone is rotated in a vertical circle with the length of the thread L. Assuming negligible air resistance, the thread’s tension difference at the bottom of the circle and at the top of the circle is... . (A) mg (D) 6mg (B) 2mg (E) 8mg (C) 4mg
Jawaban:
D. 6mg
Penjelasan:
Why D ? Becaused A stone of mass m is tied to a thread. The thread with a stone is rotated in a vertical circle with the length of the thread L. Assuming negligible air resistance, And then the answer ia D. 6mg
3. The mean mass of five boys is 62 kg. When the mass of a boy is excluded, the mean mass of the remaining four boys becomes 64 kg. Find the mass of the boy that has been excluded.
Penjelasan dengan langkah-langkah:
Let the mass of the excluded boy be "x".
The mean mass of the five boys is 62 kg, so the total mass of the five boys can be expressed as 5 * 62 = 310 kg.
And, the mean mass of the remaining four boys after excluding the one boy is 64 kg, so the total mass of the remaining four boys can be expressed as 4 * 64 = 256 kg.
So, we have the equation: 310 - x = 256 + x,
Solving for x: x = (310 - 256)/2 = 27 kg.
So, the mass of the excluded boy is 27 kg.
Jawaban:
the answer is 54 kg, sorry for messy handwriting
4. The average mass of 2 chairs is 12 kg. The mass of one of the chairs is 9 kg. What is the mass of the other chair?
Jawaban:
15kg
Penjelasan dengan langkah-langkah:
[tex]12 = \frac{9 + x}{2} \\ 9 + x = 12 \times 2 \\ 9 + x = 24 \\ x = 24 - 9 \\ x = 15[/tex]
Semogamembantu!
Jawaban:
the mass of the other chair is 15 Kg
Penjelasan dengan langkah-langkah:
Diketahui : average (rata-rata) mass of 2 chair 12 Kg
The mass of one of the chairs is 9 Kg
the mass of the other chair = x
[tex] \frac{9 + x}{2} = 12 \\ x = 15[/tex]
5. The mass of a bag of rice is 3 times the mass of a bag of fruits. If the mass of the bag of the rice is 15 kg, find the mass of the bag of fruits. (please put the calculation)
Jawaban:
5kg
Penjelasan dengan langkah-langkah:
Mass of bag of rice : 3 = Mass of bag of fruit
15 : 3 = 5
Jawaban:
5 kilograms
Penjelasan dengan langkah-langkah:
15 divided by 3 equal to 5
because the weight of the bag of rice is 3 times the weight of the bag of fruit, so the weight of the bag of fruit is the weight of the bag of rice divided by three
gak tau mau ngomong apa lagi
6. Given that the mass, m g of a sphere us directly proportional to the cube of its rafius, r cm, copy and conplete the table
Jawaban:
If translated into Indonesian, it is as follows
Mengingat massa, gram bola kita berbanding lurus dengan pangkat tiga jari-jarinya, r cm, salin dan lengkapi tabelnya.
Penjelasan dengan langkah-langkah:
Given that the mass, m g of a sphere us directly proportional to the cube of its rafius, r cm, copy and conplete the table.
》Mengingat massa, gram bola kita berbanding lurus dengan pangkat tiga jari-jarinya, r cm, salin dan lengkapi tabelnya.
I hope this help you..
Sorry if it's wrong..
7. The mass of an Encyclopaedia is 1.05 kg. The mass of the encyclopaediais thrice the mass of a storybook.The mass of a dictionary book is 0.72 kgmore than the storybook. What is the mass of the dictionary bookuse working
Jawaban:
Massa sebuah Ensiklopedia adalah 1,05 kg. Massa ensiklopedia adalah tiga kali massa buku cerita. Massa buku kamus adalah 0,72 kg lebih dari buku cerita. Berapa massa buku kamus?
Massa ensiklopedia = 1.05 kg
Massa buku cerita = ⅓ massa buku ensiklopedia
cara — ⅓ x 1,05 = 0,35 kg
Massa kamus = massa buku cerita + 0,72 kg
cara — 0,35 + 0,72 = 1,07 kg
semoga membantu
jadikan jawaban terbaik ya..
8. When loades with bricks,a lorry has a mass of 11,600 kg.if the mass of bricks is three times that of the empty lorry, find the mass of the bricks
lorry + bricks = 11,600 kg
if bricks = 3x mass of lorry, then,
lorry : bricks = 1:3
mass of bricks:
3/4 x 11,600 kg = 8,700 kg
9. At 25 c the vapor pressure of pure water is 23.76 mmhg and that of seawater is 22,98 mmhg. Assuming that seawater contains only NaCl, what is the estimate mass of NaCl in 100 grams seawater?
estimate mass of NaCl in 100 grams seawater
mol NaCl x Mr /100
0,94 × 58,5/100
0,5499
10. if the mass of the products of the reaction above was 45g,what was the mass of the reactants?
Jawaban:
karena itu bisa pakai mandiri
11. arti dari one of the largest ships that had ever been
salah satu kapal terbesar yang pernah adaKapal terbesar yang pernah menjadi
12. The total mass of a block of butter and a box of cherries is 384 g. The mass of theblock of butter is twice the mass of the box of cherries. Find the mass of the blockof butter.
draw model: ∆∆∆
384÷ 3 = 128
cherries = 128 g
butter = 2x 128
butter = 256 g_____
semangat belajar....
13. The mass of a dictionary is 1.28 kg. The mass of the dictionary is twice the mass of a storybook. The mass of an encyclopaedia is 1.4 kg more than storybook. What is the mass of the encyclopaedia?
Jawaban:
2.04 kg
Penjelasan dengan langkah-langkah:
Jika berat sebuah kamus 2 kali berat buku cerita, maka berat buku cerita adalah setengah dari berat kamus. Sehingga berat ensiklopedia adalah
1.4 kg + (1.28 ÷ 2) kg
= 1.4 kg + 0.64kg
= 2.04 kg
14. arti dari one of the largest ships that had ever been
salah satu dari kapal terbesar yang pernah datang (ada)kalo menurut saya
salah satu kapal terbesar yang pernah ada
15. the mass of a watermelon is 7/1 kg. the mass of a apples is 2/5 kg less than the mass of the watermelona. what is the mass of the applesb.what is the total mass of the apples and watermelon
Diketahui:
Berat semangka = 7/1 kg
Berat apel = 2/5 kg kurang dari semangka
Maka:
a. Berat apel = 7/1 - 2/5
= 35/5 - 2/5
= 33/5 = 6 3/5
b. Berat apel dan semangka = 7/1 + 6 3/5
= 35/5 + 33/5
= 68/5 = 13 3/5
Maaf klo salah
Semoga membantu
Jadikan jawaban terbaik ya...
16. The total mass of a basket and some papayas is 21 kg. The total mass of the same basket and some apples is 11 kg. The mass of the papayas was twice the mass of the apples. What is the mass of the papaya?
Jawaban:
20 Kg
Penjelasan dengan langkah-langkah:
Basket And Papayas = 21 kg
Basket And Apples = 11 Kg
Basket = 1 Kg
21+11=32
32-2 [2=Mass Basket] = 30
there are 2 basket = [2:2=1]
21 - 1 = 20 = Mass Papayas
11 - 1 = 10 = Mass Apples
17. A kitten and a basket has a mass of 3 kg. A hanster and a similar basket has a mass of 1.4 kg. The mass of the kitten is 5 times the mass of the hamster. (a) what is the mass of the hamster? (b) what is the mass of the kitten?
hamster = x
kitten =y
basket=z
y=5x
x + z = 1,4
y+ z = 3. (+)
x-y = -1,6
x-5x=-1,6
6x = 1,6. x =0,267
y = 5x=5×0,267=1,335
18. a kitten and a basket has a mass of 3 kg . A hamster and a similar basket has a mass of 1.4kg . the mass of the kitten is 5 times the mass of the hamster .a. what is the mass of the hamster ? , b. what is the mass of the kitten ?
kitten = x ,hamster = y and baskest = z
x+z = 3 kg
y+z = 1,4 kg
z = x- y = 3 kg - 1,4 kg = 1,6 kg
x+y = 4,4 kg - 1,6 kg = 2, 8 kg
x = 5y
5y +y = 2,8 kg
6y = 2,8 kg
y = 2,8 kg /6
y = 0,47 kg
x = 5y
= 5 * 0,47 kg
= 2,35 kg
a. mass off hamster = 0,47 kg
b. mas off kitten = 2,35 kg
bonus...mass of basket = 1,6 kg
thank's
19. apa artinya the live throughout much of the country of australia and are the largest mammal that lives in australia
hidup di sebagian besar negara australia dan merupakan mamalia terbesar yang hidup di australiaHidupnya mayoritas berada di negara Australia dan mereka adalah mamalia terbesar yang hidup di Australia.
20. The largest kangaroos are ... the antonym of the largest is
Menurut saya,
smallest
Semoga Membantu:)
The antonym of the largest is the smallest
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