Answer:
2m head start or else you done for
Explanation:
you cant even out run a bear they run at 35mph the fastest human is 25
Answer:
constructive interference in which waves strengthen each other
Explanation:
Some definitions:
- Costructive interference occurs when two (or more) waves meet each other in phase, so with same displacement at the same point. In such situation, the two waves strengthen each other, and the amplitude of the resultant wave is the sum of the amplitudes of the individual waves
- Destructive interference occurs when two waves meet each other in anti-phase, so with opposite displacement at the same point. In such situation, the two waves cancel each other out, and the amplitude of the resultant wave is the difference of the amplitudes of the individual waves (which means zero if the two waves are identical)
For light waves interfering with each other, 'white' means costructive interference, while 'black' means destructive interference (because black is absence of colors, so this means that the waves cancel each other out). In this problem, we see that point X, Y and X are white, therefore they are point of constructive interference, where the waves strengthen each other.
Answer:
Nativism was rejected in the late 1600’s and early 1700’s by a group, of philosophers called?
Empiricists Is the Correct Answer!
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Happy Labor day!
Answer : The specific heat of unknown sample is, 
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
![q_1=-[q_2+q_3]](https://tex.z-dn.net/?f=q_1%3D-%5Bq_2%2Bq_3%5D)
![m_1\times c_1\times (T_f-T_1)=-[m_2\times c_2\times (T_f-T_2)+m_3\times c_3\times (T_f-T_2)]](https://tex.z-dn.net/?f=m_1%5Ctimes%20c_1%5Ctimes%20%28T_f-T_1%29%3D-%5Bm_2%5Ctimes%20c_2%5Ctimes%20%28T_f-T_2%29%2Bm_3%5Ctimes%20c_3%5Ctimes%20%28T_f-T_2%29%5D)
where,
= specific heat of unknown sample = ?
= specific heat of water = 
= specific heat of copper = 
= mass of unknown sample = 72.0 g = 0.072 kg
= mass of water = 203 g = 0.203 kg
= mass of copper = 187 g = 0.187 kg
= final temperature of calorimeter = 
= initial temperature of unknown sample = 
= initial temperature of water and copper = 
Now put all the given values in the above formula, we get
![0.072kg\times c_1\times (39.4-80.0)^oC=-[(0.203kg\times 4186J/kg^oC\times (39.4-11.0)^oC)+(0.187kg\times 390J/kg^oC\times (39.4-11.0)^oC)]](https://tex.z-dn.net/?f=0.072kg%5Ctimes%20c_1%5Ctimes%20%2839.4-80.0%29%5EoC%3D-%5B%280.203kg%5Ctimes%204186J%2Fkg%5EoC%5Ctimes%20%2839.4-11.0%29%5EoC%29%2B%280.187kg%5Ctimes%20390J%2Fkg%5EoC%5Ctimes%20%2839.4-11.0%29%5EoC%29%5D)
Therefore, the specific heat of unknown sample is,
Answer:
From point A to point D is 20
The final displacement is 32
Explanation:
AB=8
BC=8
CD=4
DE=8
EF=4
DE= 8 because the object moves 4 meters in each direction.
AB+BC+CD=20(A to D)
AB+BC+CD+DE+EF=32(Final displacement)
