Help please A lamp is marked 1.8w in normal brightness it carries a current of 600mA

1) what is the related voltage?​

Acar travels 40m in 8 seconds find the car speed

Aforce of 40n applied at the end of length 4m and diameter 2.00mm process and extension of 0.24mm, calculate the stress on the wire, strain in the wire and the young modulus for the material of the wire

The center of the milky way most likely contains a. empty space. b. a red giant star. c. a globular cluster. d. a supermassive black hole.