Electric field due to a charged rod along its axis is given by
here we know that
L = 14 cm
r = distance from end of rod
r = 36 - 7 = 29 cm
Q = 222 mC
now we will have
Number 1 is y=3x
Number 2 is y=x-3
Number 3 is y=-3x
1. Sodium metal reacts vigorously with water to produce hydrogen gas.
Chemical. A chemical property can only be observed by changing the chemical identity of a substance.
2. Steel is attracted to magnets.
Physical. A physical property is is an aspect of matter that can be observed or measured without changing its chemical composition.
Answer:
Thermopile is an electronic device that converts thermal energy into electrical energy.
A Peltier cooler, heater, or thermoelectric heat pump is a solid-state active heat pump which transfers heat from one side of the device to the other, with consumption of electrical energy, depending on the direction of the current.
Answer:
1. B. False.
2.A. The P or primary wave.
I really don´t feel like explaining but good luck!