Answer:
Explanation:
The question is incomplete.
The equation of motion is given for a particle, where s is in meters and t is in seconds. Find the acceleration after 4.5 seconds.
s= sin2(pi)t
Acceleration = d²S/dt² 
dS/dt = 2πcos2πt
d²S/dt² = -4π²sin2πt
A(t) = -4π²sin2πt
Next is to find acceleration after 4.5 seconds 
A(4.5) = -4π²sin2π(4.5)
A(4.5) = -4π²sin9π
A(4.5) = -4π²sin1620
A(4.5) = -4π²(0)
A(4.5) = 0m/s²
 
        
             
        
        
        
Answer: Yes
Explanation:
Velocity  is defined as the distance traveled
 is defined as the distance traveled  in a specific time
 in a specific time  :
:

If you are traveling at  a distance
 a distance  , then the time it will take you to be at work is:
, then the time it will take you to be at work is:


This means you will make it on time, because this time is less than 0.25 h.
 
        
             
        
        
        
Answer: As Earth rotates, the Moon's gravity causes the oceans to seem to rise and fall. ... There is a little bit of friction between the tides and the turning Earth, causing the rotation to slow down just a little. As Earth slows, it lets the Moon creep away.
Explanation:
 
        
             
        
        
        
Answer:
I would think the answer is color, if the wavelength is within the visible light spectrum. This could be answered in different ways but I'm pretty sure the answer you are looking for is hue/color.
 
        
             
        
        
        
May be 
May be not
It is depend up on your level of thinkin
But in graduation may be not second option will consider
....