1. Does the validity of the principle of conservation of momentum depend on the validity of Newton's 3rd law of motion?

A rocket has a mass 250 x (10^3) slugs on earth. Specify(a) its mass in SI units, and(b)its weight in SI units.If the rocket is

zloy xaker [14]

Explanation:

It is given that,

Mass of the rocket, $m=250\times 10^3\ slugs$

(a) The SI unit of mass is kilogram (kg). The relation between slugs and the kg is given by :

1 slug = 14.59 kg

So, $250\times 10^3\ slugs=250\times 10^3\times 14.59$

Mass of the rocket, m = 3647500 kg

(b) Weight of the rocket is given by :

W = m g

$W=3647500\times 9.8=35745500\ N$

or

$W=3.5\times 10^7\ N$

(c) If the rocket is placed on the moon. The acceleration due to gravity on the moon is, $a=5.3\ ft/s^2=1.61\ m/s^2$

Mass is the amount of matter contained inside the object. So, the mass of the rocket remains the same i.e. 3647500 kg

Weight of the rocket on the moon is, $W=mg$

$W=3647500\times 1.61$

W = 5872475 N

or

$W=5.8\times 10^6\ N$

Hence, this is the required solution.

8 0

3 years ago

Please answer formula is in text

Travka [436]

E=mc^2 n its given 1kg = 9x10^16J

so need to figure out the total mass loss n u can find the energy released

mass loss when 4x H atom combines to form 1x He atom in a fusion reaction is given as 4.59x10^-29kg

1 mole of He has 6.02x10^23 He atoms

so 2.7 moles of He has 2.7x6.02x10^23 He atoms

the total mass loss for 2.7 moles of He created in a fusion reaction

= 2.7x6.02x10^23 x 4.59x10^-29kg

= 7.46x10^-5kg

radiation energy released from this fusion reaction

= 7.46x10^-5 x 9x10^16J

= 6.7x10^12J

its 60 BILLION times more than burning carbon!!

7 0

3 years ago

Read 2 more answers

When Kevin pulls his cotton shirt off his body, the electrons get transferred from the (shirt or body) to the (shirt or body) .

Masja [62]

<span>When Kevin pulls his cotton shirt off his body, the electrons get transferred from the shirt (in form of static charges i.e. electrons to the body. So, the shirt becomes positively charged and Kevin’s body becomes negatively charged.

As a result of charge transfer from the shirt to the body, we can hear a crackling sound. or if observed in dark, a sparkle can be seen.</span>

6 0

3 years ago

A boy throws a ball at a brick wall compare and contrast the force exerted by the ball into the wall and a force exerted by the

notka56 [123]

The ball is gonna bounce back duh

3 0

3 years ago

Refrigerators are usually kept at about 5∘C, while room temperature is about 20∘C. If you were to take an "empty" sealed 2-liter

expeople1 [14]

Answer:

The volume will not contract to one fourth of the original.

Explanation:

Applying Charles's Law as:

$\frac {V_1}{T_1}=\frac {V_2}{T_2}$

Given ,

V₁ = ?

V₂ = 2 L

T₁ = 5 °C

T₂ = 20 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T₁ = (5 + 273.15) K = 278.15 K

T₂ = (20 + 273.15) K = 293.15 K

Using Charles law as:

$V_1=\frac {V_2}{T_2} \times {T_1}$

$V_1=\frac {2\ L}{293.15 K} \times {278.15 K}$

$V_1=1.8977 L$

Thus, the volume will not contract to one fourth of the original. (1/4 of 2 L is 0.5 L).

8 0

4 years ago

1. Does the validity of the principle of conservation of momentum depend on the validity of Newton's 3rd law of motion?​

1. Does the validity of the principle of conservation of momentum depend on the validity of Newton's 3rd law of motion?