Plllzzz hel 4.28 A 423.5N force acceleration a go cart and its driver from 10.4m/s to 17.9m/2 in 5.00s. What is the mass of the go cat plus driver?

Hint F= ma. a= v2- v1/t

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

Why does lightning travel from clouds to the ground?

Aseries circuit contains a 30 e resistor, a 20 resistor, and a 10 resistor. the power supply provides 100 v to the circuit the current in the 10 resistor, to two significant figures, is a.