FINISH QUIZ roup 18, the noble gases, do not usually form compounds because
grupo 18, los gases nobles, no suelen formar compuestos porque
A
B
their outermost energy level is missing 1 electron
a su nivel de energía más externo le falta 1 electron
they readily (easily) form positive ions
Ellas fácilmente (fácilmente) forman iones positivos
D
their outermost energy level is full
su nivel de energía más externo está lleno
they can have either a positive or a negative charge
Ellas pueden tener una carga positiva o negativa

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Review multiple-concept example 7 in this chapter as an aid in solving this problem. in a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. in one instance, the radius of the circle is 0.626 m. at one point on this circle, the ball has an angular acceleration of 66.1 rad/s2 and an angular speed of 12.6 rad/s. (a) find the magnitude of the total acceleration (centripetal plus tangential) of the ball. (b) determine the angle of the total acceleration relative to the radial direction.