Answer to Question #174133 in Physics for Leira

Question #174133

The energy of a system increases at a rate of 3.5 t + 6.2 t ², in joules. what is the instantaneous power at t= 3.1 s?

Expert's answer

"W=3.5t+6.2t^2"

"P=dW\/dt=3.5+13t"

"P(3.1)=3.5+13\\cdot3.1=43.8\\ (W)" . Answer

Learn more about our help with Assignments: Physics

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. A 700-N man jumps out of a window into a fire net 10m below. The net stretches 2m before bringing th
2. A forward Horizontal force of 12N is used to pull a 240 N crate at a constant velocity across a hori
3. Starting at t=0, an object moves along a straight line with velocity in m/s given by v (t)= 98-2+2,
4. Two automobiles are 150km apart and traveling toward each other. One automobile is traveling at 60k
5. If the speed of sound is 300 m/s in a certain medium, calculate the period of a sound wave with a 3-
6. A boy of mass M swings back-and-forth to the end of room for 6 m long there’s attached to the ceil
7. 11.An ultrasound transducer is used to direct longitudinal waves at a frequency of 12MHz at an arter