Acurve of radius 78 m is banked for a design speed of 85 km/h. if the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely make the curve? [hint: consider the direction of the friction force when the car goes too slow or too fast.]

Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?

Awelder using a tank of volume 7.50×10^-2 m^3 fills it with oxygen (with a molar mass of 32.0 g/mol ) at a gauge pressure of 3.30×10^5 pa and temperature of 37.1 ∘c. the tank has a small leak, and in time some of the oxygen leaks out. on a day when the temperature is 23.1 ∘c, the gauge pressure of the oxygen in the tank is 2.00×10^5 pa . a) find the initial mass of oxygen. b) find the mass of oxygen that has leaked out.

What word chemical equation describes cavendish’s experiment with zinc?