An electron has a velocity of 6×106 m/s in the positive x direction at a point where the magnetic field has the components Bx = 3 T, By = 1.5 T. What is the magnitude of the acceleration of the electron at this point? 2.1 × 1018 m/s2

2.6 × 1018 m/s2

3.7 × 1018 m/s2

3.2 × 1018 m/s2

1.58 × 1018 m/s2

The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit:

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction