Consider an InGaAs APD with x ≈ 0.7 which is biased to operate at M = 10. The unmultiplied dark current is 10 nA and bandwidth is 700MHz. a) What is the APD noise current per square root of bandwidth?
b) What is the APD noise current for a bandwidth of 700MHz?
c) If the responsivity (at M = 1) is 0.8 AW -1 what is the minimum optical power for a SNR of 10?

What can you increase the strength of an electromagnet by

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)

An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station