An atom with 19 protons and 18 neutrons is a(n) A. Isotope of argon (Ar)
B. Standard atom of (K)
C. Standard atom of agron (Ar)
D. Isotope of potassium (K)

You can decrease the resistance of a length of wire by

If the pressure in a gas is doubled while its volume is held constant. true or false

3. a particle with initial velocity v⃗ 0=(5.85×103m/s)j^ enters a region of uniform electric and magnetic fields. the magnetic field in the region is b⃗ =−(1.35t)k^. you can ignore the weight of the particle. a. calculate the magnitude of the electric field in the region if the particle is to pass through undeflected, for a particle of charge +0.640 nc.