Alarge flat block of mass 7 m rests on a level, smooth tabletop (µk ≈ 0). on top of it is a much smaller block of mass m, with a coefficient of static friction between the two blocks of µs. if the small block is pulled horizontally with constant force f, we want both blocks to slide together across the table without slipping on each other.
what is the largest acceleration that the system can be given in terms of µs and g?
1. f − µs g/ 8
2. f /8 m
3. µs g /7
4. µs g
5. 7 µs g /8
6. 8 µs g

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

The material that keeps its new shape after it is stretched is called?

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?