How many days will it take for one half of the original amount of a radioactive substance to decay if the half-life is 30 days?

a. 3 days

b. 15 days

c. 30 days

d. 60 days

Nearly all physics problems will use the unit m/s for acceleration explain why is not the unit given as m/s as it is for speed?

In physics, Ohm's law says that current through a wire, I, is directly proportional to voltage, V, and inversely proportional to resistance, R: [ I=V/R. ] It's also true that resistance is directly proportional to the length of the wire.

The grounded conductor and the grounding conductor are one and the same conductor and perform the same function.

5. Which is not true about a wave in the open ocean? D A Water particles move in a circular path. B As the wave travels, water particles pass the energy along by moving in a circle. O C Water particles travel with the wave.

Which of these is not a way to build resilience?

How much would a 100kg man weigh on the surface of the sun where the acceleration is 274 m/s

How much current is in a circuit that includes a 9 - volt battery and a bulb with a resistance of 12 ohms?

Find the current Voltage VD and current ID in the following circuit assuming (a) ideal diode. (b) Constant voltage drop model with Von = 0.75V (c) using the exponential model (I_0=1*10^ (-14)). Verify your results through Multisim simulation

Suppose two stars are located in region a of the h-r diagram shown in the figure below. Star X appears much dimmer that Star Y as seen from Earth. Which Star can be inferred to be nearer to Earth, and how do you know?

A student examining a joint observes collagen-rich connective tissue fibers linking the bones, but finds no synovial cavity. Which structural classification fits the observed joint?