Acceleration= change in velocity/time=27.8-0/4.8=5.792 ms⁻²
Force= Mass*acceleration=66*5.792=382.25 N
Its true...water takes the shape of its container and it flows..please give me 5 stars and brainliest
Answer:
PRESSURE is a force exerted by the substance per unit area on another substance.
The key difference between water pressure and air pressure is that one is made up of water and the other is made up of air. Both air pressure and water pressure are based on and follow the same physical principals.
Explanation:
Answer:
2.13 s
Explanation:
Hi!
At t = 0s the rocket is at rest in its platform, so the intial speed is zero. I f the acceleration is A, then the height Y, and the speed V are:
We nedd to find time T during which the rocket engine provides upward acceleration. We know that:
With these 2 equations we can find A and T (dropping units for simplicity):
Answer:
-90cm
Explanation:
u=−30cm and magnification m=(−v/u)=−3 so v=(3u)image is real so m should be negative v should be negative so v=−90cm
putting the above values of v and u in the Mirror equation,
f1=u1+v1
we get focal length f=−22.5cm and image position v=−90cm
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