A jet fighter plane fires a missile forward at 1000 km/hrelative to the plane. a. If the plane is moving at 1200 km/h relative to the ground, what is the velocity of the missile relative to the ground?
b. What is the velocity of the missile relative to a planemoving in the same direction at 800 km/h?
c. What is the velocity of the missile relative to a targetmoving at 800 km/h toward the missile?

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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.

Drag each item into the proper state of matter category.

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure