Answer:
θ = 20.21 radians
Explanation:
Using the expression to het the angle;
w² = wi² + 2∝θ
w is the final angular velocity
wi is the initial angular velocity
θ is the angle
∝ is the angular acceleration
Substitute the given values into the formula;
w² = wi² + 2∝θ
48² = 0² + 2(57)θ
2304 = 114θ
θ = 2304/114
θ = 20.21 radians
I think it's The fossil record. The same animal fossil is in Africa and South America. The animal could have not swim across so its the fossil record
Answer:
D. Friction
Explanation:
"Friction is caused by microwelds that form between two surfaces. Microwelds are stronger when the two surfaces are pushed together with a greater force." - ( Module 3 • Forces and Newton’s Laws) quoted
hope this helps and is right. p.s. i really need brainliest :)
Examples of devices that convert electrical energy into mechanical energy — in other words, devices that use electrical energy to move something — include:
the motor in today’s standard power drills
the motor in today’s standard power saws
the motor in an electric tooth brushes
the engine of an electric car
the motor in a fan
the motor in a remote control cars that runs on batteries. So your answer would be B. Motorsport
Answer:
3.89m
Explanation:
To find the length of the pipe you can use the formula for the modes of the pipe with a closed end:
n: mode of frequency
vs : sound speed = 343m/s
L: length of the pipe
by taking the difference between two consecutive modes you obtain:
by using two consecutive frequencies in the previous expression and replacing you get:
hence, the length of the pipe is 3.89m