 , 02.12.2019 23:00 jjjjjjjbvhnchjkj

# Record your prediction (hypothesis) as an "if then" statement. (for example: if you select the go button, then the train will move) if  the sound source is moving  then the pitch of the sound will to the observer. ### Another question on Physics Physics, 31.01.2019 00:50
Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions. Physics, 30.01.2019 20:25
Aparticle of mass m = 0.2kg performs simple harmonic oscillation and its velocity varies in time according to the relation v= 2 cos 4πt (s. calculate: a) the distance between the two most remote positions. b) the acceleration when the displacement of the particle is x= +a. c) the velocity of the particle at time moment t=1/12 s d) calculate the restoration constant of the system and the rate of change of the momentum at the time moment the displacement is x= -a/2 it is given that cos π/3 = 1/2 and π^2 is about 10 Physics, 30.01.2019 01:12
Agirl throws a ball. if the ball's acceleration is 12 m/sec/sec and its mass is 0.5 kg, how much force did the girl apply to the ball? Physics, 29.01.2019 23:16
1700 j of energy is lost from 0.14 kg object , the temperature decreases from 50°c to 45°c what is the specific heat of this object, amd what is the material ?
Record your prediction (hypothesis) as an "if then" statement. (for example: if you select the go b...
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