Jasper and gemma are going to play on a teeter totter. gemma gets on first. when jasper gets on, gemma moves into the air, but she does not move to the top. which statement could correctly explain the forces acting on the teeter totter? the forces are balanced because jasper weighs the same as gemma.  the forces are unbalanced because jasper weighs the same as gemma.  the forces are balanced because jasper weighs more than gemma.  the forces are unbalanced because jasper weighs more than gemma. 

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?

The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?