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velikii [3]
4 years ago
15

If the force applied to an object is

Physics
1 answer:
telo118 [61]4 years ago
6 0
Bigger because FORCES MAKE ACCELERATION
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A 500.0 kg module is attached to a 440.0 kg shuttle craft, which moves at 1050. m/s relative to the stationary main spaceship. T
nika2105 [10]

Answer:

0.955286  j

Explanation:

A 500.0 kg module is attached to a 440.0 kg shuttle craft, which moves at 1050. m/s relative to the stationary main spaceship. Then a small explosion sends the module backward with speed 100.0 m/s relative to the new speed of the shuttle craft. As measured by someone on the main spaceship, by what fraction did the kinetic energy of the module and shuttle craft, Ki, increase because of the explosion?

M=500 kg,  m=440 kg

V=1000 m/s, v = 100 m/s

Let relative speed =Vs

Momentum rule says

(M+m)V=mVs+M(Vs-v)

 940(1000)=500(Vs-100)+440Vs

 940000=500Vs-50000+440Vs

 940Vs=940000+50000

 940Vs=990000

 Vs= 990000/940=1053.19 m/s

So, the module speed = Vs-v=1053.19-100=953.19 m/s

Fractional increase in KE is given by;

Total KE after explosion / He before explosion

=500(953.19)2+ 400(1053.19)2/ 940(1000)2= 0.955286

5 0
4 years ago
Oil flows upward in the wick of a lantern because of the liquid property called
vlabodo [156]
Oil flows upward in the wick of a lantern because of the liquid property called <span>Capillarity c:</span>
6 0
4 years ago
these four trucks are identical each box loaded on the truck has the same mass choose the truck that has the greatest force of g
likoan [24]

Answer:

the green truck

Explanation:

the truck has 6 boxes which weighs more than 4, 3, or 2

4 0
4 years ago
Read 2 more answers
Architects have to consider how sound travels when designing large buildings such as theaters, auditoriums, or museums. Sound in
serious [3.7K]

Answer:

  I₂ = 0.04 W / m²

Explanation:

Sound intensity is the power emitted between the unit area

          I = W / A

         W = I A

sound is a wave that travels in space whereby its energy is distributed on the surface of a sphere

         A = 4π r²

we substitute

         W = I (4π r²)

the emission power is constant, so the intensity at two different points is

           W = I₁ 4π r₁² = I₂ 4π r₂²

so the equation is

            I₁ r₁² = I₂ r₂²

In this case the units are not shown in the exercise, suppose that all units are in the SI system

           I₂ = I_1 \ \frac{r_1^2}{r_2^2}

let's calculate

           I₂ = 4 4 \  \frac{2^2}{20^2}

           I₂ = 0.04 W / m²

5 0
3 years ago
Sully uses a battery and a coil of wire to create an electromagnet. Using the same materials, if he wants to increase the streng
liraira [26]
B.) Increase

B.) Increase

Hope this helps!
3 0
4 years ago
Read 2 more answers
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