Select all the correct answers.!

a seismograph has a heavy
weight that is hung from a spring. what would happen if the weight were attached to a rod instead of a spring?

the weight would not oscillate.

the weight would oscillate.

the pen would not make contact with the paper,

the seismogram would not be accurate,

the seismograph would not function.

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

Determine the maximum r-value of the polar equation r =3+3 cos 0

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s