Calculate the new volume when metal Cube of side 5cm at 28°C on heating
to 578° C increase by 0.15cm. the coefficient of cubical expansion of the metal
is 1.635x10-6/°C

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.

A2.50 × 105 w motor is used for 26.4 s to pull a boat straight toward shore. how far does the boat move toward shore if a force of 4.20 × 104 n is applied by the motor?

Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency