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3 years ago

10

Which of these colors of light passes most easily through interstellar clouds? which of these colors of light passes most easily

through interstellar clouds? red light green light blue light?

1 answer:

Kruka [31]3 years ago

6 0

Blue!! Gfcdgfcdvgcgccxdscxx

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A bullet whose mass is 30.2 g leaves a rifle with a muzzle velocity of 1,000 m/s. It strikes a block of wood (mass 5 kg), initia

AveGali [126]

This problem here is an example of inelastic collision where kinetic energy is not conserved but momentum is. We calculate as follows:

m1v1 + m2v2 = (m1 + m2)v3
v3 = m1v1 + m2v2 / m1 + m2
v3 = (30.2)(1000) + (5000)(0) / (30.2 + 5000)
v3 = 6.00 m/s

5 0

3 years ago

Lowered its infancy motel the weight by introducing increase prenatal and neonatal care for mothers have a social and cultural b

Leni [432]

It grows every time it needs to grow for the population of the environment

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3 years ago

In an experiment of a simple pendulum, measurements show that the pendulum has length し 0.397 ± 0.006 m, mass M-0.3172 ± 0.0002

vichka [17]

Answer:

1.)1.265+or minus 0.0006m

2).0.71%

Explanation:

See attached file

6 0

2 years ago

Problem 02.061 For the given circuit, assume vS = 10 V, R1 = 9 Ω, R2 = 4 Ω, R3 = 4 Ω, R4 = 5 Ω, and R5 = 4 Ω. Reference Book &am

stich3 [128]

Answer:

Ws=8.75 Watts

Explanation:

As per fig. of prob 02.061, it is clear that R5 and R4 are in parallel, its equivalent Resistance will be:

$\frac{1}{Req45}=\frac{1}{R4}+\frac{1}{R5}$

$\frac{1}{Req45}=\frac{1}{5}+\frac{1}{4}$

$\frac{1}{Req45}=0.2+0.25=0.45\\ Req45=2.22$

Now, this equivalent Req45 is in series with R3, therefore:

$Req345=R3+Req45\\Req345=4+2.22\\Req345=6.22$

This Req345 is in parallel with R2, i.e

$Req2345=(R2^{-1}+Req345^{-1} )^{-1}\\ Req2345=(4^{-1}+6.22^{-1} )^{-1} \\Req2345=2.43$

Now this gets in series with R1:

$Req12345=R1+Req2345\\Req12345=9+2.43\\Req12345=11.43$

Now, the power delivered Ws is:

$Ws=Vs*I=\frac{Vs^{2}}{Req} \\Ws=\frac{10^{2} }{11.43} \\Ws=8.75 Watts$

8 0

3 years ago

An object moving with constant acceleration changes speed from 20 mi./s to 60 mi./s in 2.0 seconds what is the acceleration

natali 33 [55]

Acceleration = change in velocity / time
= 40 mi/s / 2s = 20 mi/s/s

3 0

3 years ago