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3 years ago

Whatis the CGS andSI unit of weight?

Physics

2 answers:

svetlana [45]3 years ago

5 0

Answer:

$\boxed{\mathrm{view \ explanation}}$

Explanation:

Weight is a force that acts on all objects on Earth.

The CGS unit for force is dyne.

The SI unit for force is newtons (N).

Goryan [66]3 years ago

3 0

Weight is force.

The CGS unit of force is the dyne.

The SI unit of force is the Newton.

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A 234.0 g piece of lead is heated to 86.0oC and then dropped into a calorimeter containing 611.0 g of water that initally is at

Vaselesa [24]

Answer: $24.70 ^{\circ}C$

Explanation:

Given

mass of lead piece $m_l=234 gm\approx 0.234 kg$

mass of water in calorimeter $m_w=611 gm\approx 0.611 kg$

Initial temperature of water $T_w=24^{\circ}C$

Initial temperature of lead piece $T_l=24^{\circ}C$

we know heat capacity of lead and water are $125.604 J/kg-k$ and $4.184 kJ/kg-k$ respectively

Let us take $T ^{\circ}C$ be the final temperature of the system

Conserving energy

heat lost by lead=heat gained by water

$m_lc_l(T_l-T)=m_wc_w(T-T_w)$

$0.234\times 125.604(86-T)=0.611\times 4.184\times 1000(T-24)$

$86-T=\frac{0.611\times 4.184\times 1000}{29.391}(T-24)$

$86-T=86.97T-2087.49$

$T=\frac{2173.491}{87.97}=24.70^{\circ}C$

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2 years ago

You are on a train traveling east at speed of 18 m/s with respect to the ground. 1) If you walk east toward the front of the tra

dlinn [17]

Answer:

19.2 m/s

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2 years ago

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8_murik_8 [283]

After 20 s, the motorcycle attains a speed of

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2 years ago

You have a mass of 60-kg, and you are facing your friend who has a mass of 100 kg. You skate towards

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Answer: My initial velocity is 5 m/s.

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In this case, momentum can be conserved.

initial momentum = final momentum

Since both the bodies come to rest after collision,

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Friend's mass, m2 = 100 kg

Friend's velocity, v2 = 3 m/s

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2 years ago

An object moves from point A to B to C to D and finally to A

Nataly [62]

here's the solution,

The radius of the circle = 3 km

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=》

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2 years ago

Whatis the CGS andSI unit of weight?​

Whatis the CGS andSI unit of weight?