Answer:
Explanation:
We can utilize one of the four kinematic equations:
Since the car is moving at 5 m/s and comes to a complete stop after two seconds, <em>v</em>_<em>i</em> = 5 m/s, <em>v</em>_<em>f</em> <em> </em>= 0 m/s, and <em>t</em> = 2 s.
Substitute and solve for <em>a: </em>
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In conclusion, the acceleration of the car was -2.5 m/s². In other words, it was decelerating at a rate of 2.5 m/s².
Answer:
180 C
Explanation:
t = 60 sec, I = 3.0 A
Q = I*t = 3.0 * 60 = 180 C
<span>a. To find work we need to know force and distance; to find power we need to know force and velocity.</span>
Answer:
-0.314 rad/s²
197.39 m/s²
197.49 m/s² and 1.822° counterclockwise.
Explanation:
= Final angular velocity
= Initial angular velocity
= Angular acceleration
= Angle of rotation
t = Time taken
R = Radius = 20 m
Angular acceleration of the turbine is -0.314 rad/s²
Centripetal acceleration
The centripetal acceleration of the tip is 197.39 m/s²
Tangential acceleration
Acceleration
Magnitude and direction of the total linear acceleration of the tip of the blades is 197.49 m/s² and 1.822° counterclockwise.
Answer:
23L
Explanation:
Given that:
Initial volume of water = 30mL
Final volume of water after an object was placed on it = 53mL
The volume object added which resulted in a rise to 5mL will be :
Final Volume of object - Initial volume of object
53 mL - 30mL = 23mL
Hence, volume of object added is 23 mL