In the circuit shown in figure, initially switches s1 and s2 were closed and s3 was open. Now the switches s1 and s2 are opened and s3 is closed. The total heat dissipated by the 10 ω resistor is.

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?