An electron traveling with a speed v enters a uniform magnetic field directed perpendicular to its path. The electron travels for a time t0 along a half-circle of radiusR before leaving the magnetic field traveling opposite the direction it initially entered the field. Which of the following quantities would change if the electron had entered the field with a speed 2v? (There may be more than one correct answer.)1. The radius of the circular path the electron travels2. The time the electron is in the magnetic field3. The magnitude of the net force acting on the electron inside the field4. The magnitude of the electron’s acceleration inside the field

The object's initial distance above the groundthe object's initial velocity

Ireally don’t know

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

The acceleration is 7