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almond37 [142]
3 years ago
6

Apakah soalan tingkatan 4 bm negeri selangor

Physics
1 answer:
noname [10]3 years ago
8 0
What does this mean? What do you need help with?
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What is the kinetic energy of a 50-kg child running to catch the school bus at
Vinvika [58]

Answer:

Option C

100 J

Explanation:

Kinetic energy, KE is given by

KE=0.5mv^{2} where m is the mass and v is the velocity

Substituting 50 Kg for mass, m and 2 m/s for velocity v then we obtain

KE=0.5*50*2^{2}=100 J

Therefore, the child's kinetic energy is equivalent to 100 J

6 0
3 years ago
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An airplane, starting from rest, moves down the runway at constant acceleration for 18 s and then takes off at a speed of 60 m/s
ruslelena [56]

Answer:

a =3.33 m/s²

Explanation:

given,

initial speed of Plane, u = 0 m/s

final speed of plane, v = 60 m/s

time of the acceleration, t = 18 s

average acceleration of the plane, a = ?

average acceleration is equal to change in velocity per unit time.

a = \dfrac{v - u}{t}

a = \dfrac{60 - 0}{18}

a = \dfrac{60}{18}

     a =3.33 m/s²

Hence, average acceleration of the plane is equal to a =3.33 m/s²

4 0
3 years ago
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Find the mass of a person who weighs 608 N
Anvisha [2.4K]

Answer:

weight = mass \times accelaration \: due \: to \: gravity \\ 608 = x \times 10 \\ x = 608 \div 10 = 60.8 \\ mass = 60.8 \\ thank \: you

7 0
2 years ago
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Who is prime minister of india
puteri [66]

His name is

Narendra Modi

6 0
3 years ago
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A group of tissues working together with a common goal make up a(n) _________________.
natita [175]
Organ system is the correct response hope this helps
4 0
3 years ago
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