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
1. 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...
2. 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
3. A block of mass 5 kg initially at rest at the origin is acted on by a force along the positive X - direction represented by F= (20 +5x) N. Calculate the work done by the force during the displacement of the block from x=0 at x = 4mMakasih ^^"
Question:
A block of mass 5 kg initially at rest at the origin is acted on by a force along the positive X - direction represented by F= (20 +5x) N. Calculate the work done by the force during the displacement of the block from x=0 at x = 4mAnswer:
The work done by the body is 10 JoulesExplanation :
Given that :
A block of mass 5 kg initially is at rest Aforce of F = ( 20 + 5x ) N is acted on it along the positive x direction along the displacement of x = 0 to x = 4mToFind:
The work done on the bodyFormula Used :
[tex]\bigstar \; {\underline{\boxed{ {\bf Work \; done}= \int \vec{\bf F . } \vec{\bf dx} }}}[/tex]
Required Solution :
Since a variable force acts upon the body[tex]\bigstar[/tex] Formula to find the work done
[tex]\leadsto \; {\pink{\boxed{ {\bf Work \; done}= \int\vec{\bf F . } \vec{\bf dx} }}}[/tex]
[tex]\longrightarrow \vec{\sf F} . \vec { \sf dr} = \sf | F | |dx| \cos(\emptyset )[/tex]
[tex]\bigstar[/tex] Here ,
As the force and the displacement are in the same direction the angle between them is 0° [ Cos ( 0 ) = 1 ]
[tex]\longrightarrow \rm Work \; done = \displaystyle \int^4_0 \rm F . dx[/tex]
[tex]\longrightarrow \rm Work \; done = \displaystyle \int^4_0\rm ( 20+ 5x ) \;dx[/tex]
[tex]\longrightarrow \rm Work \; done = \displaystyle \int^4_0 \rm 20 \; dx + \int^4_0 5x \; dx[/tex]
[tex]\longrightarrow \rm Work \; done = \displaystyle 20 \int^4_0 \rm dx + 5 \int^4_0 x \; dx[/tex]
[tex]\bigstar[/tex] Integrating further,
[tex]\longrightarrow \rm Work \; done = 20 \bigg[ x \bigg]^4_0 + 5 \bigg[ \dfrac{x^2}{2} \bigg]^4_0[/tex]
[tex]\longrightarrow \rm Work \; done = 20 \bigg[ 4 - 0 \bigg]+ 5 \bigg[ \dfrac{4^2- 0^2}{2} \bigg][/tex]
[tex]\bigstar[/tex]Calculating the work done,
[tex]\longrightarrow \rm Work \; done = 20 ( 4) + 5 ( 8 - 0 )[/tex]
[tex]\longrightarrow \rm Work \; done = 20 ( 4) + 5 ( 8 )[/tex]
[tex]\longrightarrow {\red{\underline{\underline{\rm{ Work \; done_{ (on \; the \; particle)}= 120 \; Joules }}}}}[/tex]
Therefore :
The work done on the particle is 120 Joules▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
4. The mass of a pot completely filled with soup is 6 kg. When it is filled with soup, itsmass is 28 kg What is the mass of the empty pot?SUP odaiah 6 kg. bila 1 dui
Jawab:10kg
Penjelasan dengan langkah-langkah:
5. A mass of 2 kg rotates at constant speed in a horizontal circle of radius 5 m and the time forone complete revolution is 3 s. The force acting on the mass is
Jawaban:
40phi^2 /9
Penjelasan dengan langkah-langkah:
Dik: m=2 kg
r=5 m
t=3 s
Dit: Fs=?
Jb: Fs= m.w^2.r
= m (2phi/T)^2 r
= 2 (2phi/3)^2 5
= 40phi^2/9
6. 25 The total mass of Joko and Reza is 121 kg. Joko's mass is 52 kg. What is Reza's mass?H :Q :A :
Jawaban:
Reza's mass ia 59 kg
Penjelasan dengan langkah-langkah:
J + R = 121
If J = 52
52 + R = 121
52 + R - 52 = 121 -52
R = 59 kg
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
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8. 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]
9. 2. The mass of a tray and 2 boxes is 2 kg 570 g. the mass of the same trayand 7 similar boxes is 6 kg 320 g.a. What is the mass of a box?b. What is the mass of the tray? Give your answer in kg and g.a. Q:öb.0a
Jawab:
Penjelasan dengan langkah-langkah:
Attached
10. A car has a mass 950 kg and it is stop at the park ground.calculate the potential energy and kinetic energy! Thx (Mass doang yg diketahui)
Kinetic Energy
Ek = 1/2mv² = 1/2x 950 x 0
Ek = 0
Potensial Energy
Ep = mgh = 950x10x0
Ep = 0
11. 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
12. 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
13. The mass of a pot completely filled with soup is 6 kg. When it is filled with soup, itsmass is 2.8 kg. What is the mass of the empty pot?
Penjelasan dengan langkah-langkah:
Massa panci yang terisi penuh sup adalah 6 kg. Saat diisi dengan sup, itu
massa 2,8 kg. Berapa massa pot kosong?
6 - 2,8
= 3,2 kg
14. a tin contains three types of cookies. The mass of Type A cookies is 1 2/9 kg. The mass of Type B cookies is 2 5/6 kg. The total mass of the three types of cookies is 5 kg. What is the mass of Type C cookies? (5 marks
Penjelasan dengan langkah-langkah:
the mass of type C cookies
= 5 kg - 1 ²/9 kg - 2 ⁵/6 kg
= 5 kg - ¹¹/9 kg - ¹⁷/6 kg
= ¹⁸⁰/36 kg - ⁴⁴/36 kg - ¹⁰²/36 kg
= ³⁴/36 kg
= ¹⁷/18 kg
15. 23.A watermelon has a mass of 12.78 kg. Its mass is thrice the mass of a papaya. Find thetotal mass of the two fruits.
Jawaban:
mtk atau b inggris sih:)
16. A mass of 20 kg travels at 7 m/s and collided with a mass of 12 kg. traveling at 20 m/s in the opposite direction along the same line The coefficient of restitution is 0.7. Determine the velocities after collision
When two objects collide, their kinetic energy, momentum, and velocity can change depending on the type of collision they experience. In the case of an elastic collision, in which the objects bounce off each other without any loss of kinetic energy, the final velocities of the objects can be calculated using the conservation of momentum and the coefficient of restitution.
In an inelastic collision, on the other hand, some of the kinetic energy is converted into other forms of energy, such as heat or sound. This means that the final velocities of the objects will be different from those in an elastic collision.
In your case, since you have provided the coefficient of restitution, it appears that the collision between the two objects is elastic. To determine their final velocities, we can use the following formula:
Final velocity of first object = (initial velocity of first object * (mass of first object - mass of second object) + 2 * mass of second object * initial velocity of second object) / (mass of first object + mass of second object)
Final velocity of second object = (initial velocity of second object * (mass of second object - mass of first object) + 2 * mass of first object * initial velocity of first object) / (mass of first object + mass of second object)
In your case, the initial velocities of the two objects are 7 m/s and 20 m/s, respectively, and the masses are 20 kg and 12 kg. Plugging these values into the above formula, we get the following:
Final velocity of first object = (7 m/s * (20 kg - 12 kg) + 2 * 12 kg * 20 m/s) / (20 kg + 12 kg) = 5.6 m/s
Final velocity of second object = (20 m/s * (12 kg - 20 kg) + 2 * 20 kg * 7 m/s) / (20 kg + 12 kg) = -14.4 m/s
Therefore, the velocities of the two objects after the collision are 5.6 m/s and -14.4 m/s, respectively.
17. The average mass of 9 sheep is 35 kg. The average mass of 9 sheep and 1cow is 64 kg. What is the mass of the cow?
Jawaban:
The mass of the cow is 325kg
Penjelasan:
TobeKnown:
9 sheep = 35 kg
9 sheep + 1 cow = 64 kg
TobeAsked:
mass of the cow = . . . . ?
Solving:
as 9 sheep + 1 cow is 64 kg, so that the total average mass of those 10 animals = 64 kg
total average = [tex]\frac {(9 × 35) + (cow)}{10}[/tex] = 64
(315) + (cow) = 64 × 10
315 + cow = 640
cow = 640 - 315
cow = 325 kg
18. 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
19. a tin contains three types of cookies. The mass of Type A cookies is 1 2/9 kg. The mass of Type B cookies is 2 5/6 kg. The total mass of the three types of cookies is 5 kg. What is the mass of Type C cookies?
Penjelasan dengan langkah-langkah:
satu kaleng berisi tiga jenis kue. Massa cookie Tipe A adalah 1 2/9 kg. Massa kue Tipe B adalah 2 5/6 kg. Massa total ketiga jenis cookies tersebut adalah 5 kg. Berapa massa cookie Tipe C?
5 - ( 1 2/9 + 2 5/6)
5 - (11/9 + 17/6)
5 - (22/18 + 51/18)
5 - 73/18
5/1 - 73/18
90/18 - 73/18
17/18
20. The average mass of 9 sheep is 35 kg. The average mass of 9 sheep and 1cow is 64 kg. What is the mass of the cow? (Bukan di translate ye)
rata rata massa 9 domba = 35 kg
rata rata massa 9 domba + 1 sapi = 64 kg
berapa massa sapi?
64 - 35 = 29 kg
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