Answer:
The initial speed of the 1kg block is 8 m/s.
Explanation:
The question simply asks for the initial speed of the 1.00 kg block.
The initial kinetic energy of the 1kg block is = 32 Joules
Using this kinetic energy, and the equation below, we can find the speed of the 1kg block:
Kinetic Energy = 
v = 8 m/s
The initial speed of the 1kg block is 8 m/s.
I think the answer is thymine
Answer: The angular acceleration =
100rads/s^2
Explanation:
Angular acceleration is defined as the angular velocity dividing by the acceleration time.
Given:
Angular velocity of ball = 30rads/s
Acceleration time of the ball = 0.30seconds
Angular acceleration = (30rads/s )/ (0.3 secs)
Angular acceleration = 100rads/s
That's a great idea ! A wind turbine (windmill) or solar panels
on the roof of every WalMart, but don't stop there. Let K-Mart,
Target, Sears, Macy's, 7-11, McDonald's, and Subway in on it too.
In fact, why not place them on the roof of every house and
apartment building too ?
Just one question: Who's going to pay for them ?
_________________________________________________
The biggest single year-round residential use of energy in the
USA is to heat up and keep a ready supply of hot water. So the
single biggest residential use of energy could be eliminated with
a simple solar water heater on the roof of every house. From my
own personal observation, I know that Israel is there now, but here
in the USA, it's apparently not worth the time, effort, or expense ! ? !
Acceleration = change of velocity over the time = (16-4)/8=1.5 m/s^2
