Một xe tải có bánh xe có đường kính 80cm, chuyển động đều. Tính chu kì, tần số, tốc độ góc của đầu van xe

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant