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Multiple Choice
A boy is pulling a load of 150N with a string inclined at an angle of
30° to the horizontal. If the tension in the string is 105 N, The force
tending to lift the load off the ground is (sin30=%,cos30=
13/2 and tan 30 = 1/13)
O (a)255N
O (b)202.5N
O (c)105/3/2N
O (e)52.5N

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?

What was the first instrument to ever record an earthquake?

In which of the following is positive work done by a person on a suitcase