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andrew-mc [135]
3 years ago
12

3. What was a constraint (a limitation or a condition) in this version?​

Physics
1 answer:
pav-90 [236]3 years ago
7 0

Answer: limitations or constraints in the vision of science is that the hypothesis must be testable and falsifiable.

Explanation:

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A 200N force pushes forward on the 20kg truck. The truck pulls two crates connected together by ropes, as shown. The gravitation
devlian [24]

Force on left crate, right crate and truck we need to draw here

First we will write the equation for left crate

T_{left} = m*a

T_{left} = 20*a

Now similarly for right crate

T_{right} - T_{left} = 20*a

now for truck

F - T_{right} = 20*a

Now we know that F = 200 N

200 - T_{right} = 20*a

now add all three equation

T_{left} + T_{right} - T_{left} + 200 - T{right} = 20a + 20 a + 20a

200 = 60 a

a = 10/3 m/s^2

now we will find all tension using this value of acceleration

T_{left} = 20 * \frac{10}{3} = \frac{200}{3} N

T_{right} - \frac{200}{3} = 20*\frac{10}{3}

T_{right} = \frac{400}{3} N


6 0
3 years ago
What is transmitted by all waves? energy mass matter sound
disa [49]

Answer: energy

Explanation: A wave is a disturbance that transfers energy as it travels through medium.

7 0
3 years ago
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An observer is approaching at stationary source at 17.0 m/s. Assuming the speed of sound is 343 m/s, what is the frequency heard
UNO [17]

Answer:

the frequency heard by the observer is equal to 2677 Hz

Explanation:

given,      

velocity of the observer = 17 m/s

speed of the sound = 343 m/s    

velocity of the source = 0 m/s    

frequency emitted from the source  = 2550 Hz              

f = f_0(\dfrac{v-v_0}{v-v_s})              

f = 2550\times (\dfrac{343+17}{343-0})

velocity of observer is negative as it is approaching the source.                   f = 2676.38 Hz ≈ 2677 Hz                    

hence, the frequency heard by the observer is equal to 2677 Hz

7 0
3 years ago
What is another word for a change in velocity/change in time
inna [77]

Answer:

acceleration

Explanation:

acceleration =velocity final-velocity initial /time

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2 years ago
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A particular lightbulb is designed to consume 40 W when operating on a car's 12-V DC electric power. If you supply that bulb wit
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40V because it will provide the same amount of power.
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