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Masteriza [31]
3 years ago
11

A turtle moves at an average speed of 0.2m/S towards the finish line that is 80m away from the starting line. A rabbit,racing wi

th the turtle,leaves the starting line 5.4 minutes after the turtle. The speed of the rabbit is 3.6km/h. Which one of them wins the race? Justify
Physics
1 answer:
klasskru [66]3 years ago
3 0

Answer:

5.6mls

Explanation:

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A fly sits on a potter's wheel 0.30 m from its axle. The wheel's rotational speed decreases from 4.0 rad/s to 2.0 rad/s in 5.0 s
Likurg_2 [28]

Answer: The wheel's average rotational acceleration is -0.4 radians per second squared (rad/s^2)

Explanation: Please see the attachments below

7 0
3 years ago
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Estimate (a) the maximum, and (b) the minimum thermal conductivity values (in W/m-K) for a cermet that contains 83 vol% carbide
velikii [3]

Answer:

  k_max = 31.82 w/mk

  k_min  = 17.70 w/mk

Explanation:

a) the maximum thermal conductivity is given as

k_{max} = k_m*v_m + k_p*v_p

where k_m is thermal conductvitiy of metal

k_p is thermal conductvitiy of carbide

v_m = proportion of metal in the cement = 0.17

v_p = proportion of carbide in the cement = 0.83

            = 66*0.17 + 28*0.83

           k_max = 31.82 w/mk

b) the minimum thermal conductivity is given as

k_{min} = \frac{k_{carbide}* k_{metal}}{k_{metal} v_{carbide} +k_{metal} v_{carbide}}

          = \frac{28+66}{28*0.17 +66*0.83}

       k_min  = 17.70 w/mk

7 0
3 years ago
A truck is moving 14m/s to the south. If it takes the truck 20 seconds to reduce its velocity to 10m/s south. What is is acceler
WARRIOR [948]

Answer:

-0,2 m/s²

Explanation:

Acceleration = α = (V-V₀)/t

α = (10-14)/20 = -0,2 m/s²

7 0
3 years ago
The Clean Air Act of 1963 was an improvement over the Air Pollution Control Act of 1955 because it _____.
Sveta_85 [38]
Was the first act to actually set emissions towards factory smoke and pollution
5 0
4 years ago
(02.05 LC)
In-s [12.5K]
Convection is the right answer!!!
Ps.: hope this helps!!!!
8 0
3 years ago
Read 2 more answers
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