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UkoKoshka [18]
4 years ago
8

A astronaut exploring an asteroid jumps from a 10 meter tall cliff and lands

Physics
1 answer:
anyanavicka [17]4 years ago
7 0
I’m pretty sure the answer would be :
9.8m/s2

Explanation: gravity =9.8m/s2
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Select the correct answer.
Valentin [98]

Answer: C. work and time

Explanation: hope this helps

5 0
3 years ago
11. A train car has the momentum of 50,000 kg*m/s and is moving at a velocity of 45 m/s what is
Monica [59]
20 hfzzigzgizugzgizgiziffuzufzufzufzifzifz
3 0
3 years ago
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Two 60 cm parallel disks are separated by 40 cm and are aligned directly on top of each other. Both disks are black surfaces wit
Crazy boy [7]

Answer:

775.48 W

Explanation:

given,

diameter of disk = 0.6 cm

length of the disk = 0.4 m

T₁ = 450 K         T₂ = 450 K      T₃ = 300 K

\dfrac{d}{r_1}=\dfrac{0.4}{0.3} = 1.33

now,

the value of view factor (F₁₂)corresponding to 1.33

F₁₂ = 0.265

F₁₃ = 1 - 0.265 = 0.735

now,

net rate of radiation heat transfer from the disk to the environment:

=\dot{Q_{1-3}+Q_{2-3}} = 2 \dot{Q_{1-3}}

       = 2 F₁₃ A₁ σ (T₁⁴ - T₃⁴)

       = 2 x 0.735 x π x (0.3)² x (5.67 x 10⁻⁸ W/m²) (450⁴ - 300⁴)

       = 775.48 W

Net radiation heat transfer from the disks to the environment = 775.48 W

3 0
4 years ago
Where does subduction occur?
prisoha [69]

The correct answer is <u>B. Where crust is destroyed.</u>

6 0
3 years ago
Read 2 more answers
Calculate the equivalent resistance for both circuits.
Allisa [31]

Answer:

Series equivalent resistance: R_{eq} = 6  \Omega

Parallel equivalent resistance: R_{eq}=14\Omega

Explanation:

The equivalent resistance in series circuit is calculated as

R_{eq} = R_{1} + R_{2}

R_{eq} = 2 + 4

R_{eq} = 6  \Omega

The equivalent resistance in parallel circuit is calculated as

\frac{1}{R_{eq}} = \frac{1}{R_{1}}+\frac{1}{R_{2}}

Which can be simplified to

R_{eq}=\frac{R_{1}\times R_{2}}{R_{1}+R_{2}}

R_{eq}=\frac{21\times 42}{21+42}

R_{eq}=14\Omega

The parallel circuit has the higher equivalent resistance as compared to series circuit.

5 0
4 years ago
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