- 8. A girl pushes a light (m=0) snow shovel at a uniform velocity across a sidewalk . If the handle of the shovel is inclined at 55^circ to the horizontal , and she pushes along the handle with a force of 100 N, a) What is the force of friction? b) What is the coefficient of kinetic friction?
- (d) belotric field electric field at a distance of 1.0 m from a charged There is 100N/C At what distance from the sphere spherne electric field be 50N/C ? (7.3) T/I (a) 1.1 m (b) 1.4 m (c) 2.0 m (d) 4.0 m
- 4. Two charged metal spheres Separated by 20 cm. attract each other with a 12 N resulting force when the charge on each sphere is reduced by half.(7.2) (a) 3 N (b) 6N (c) 24 N (d) 48 N
- 2. Autumn has fair skin and she will burn and get toasty red if the outside temperature is 15^circ C If the outside temperature reads 60^circ F, is her skin going to get toasty red?
- a) Could angle Theta be defined as the reference angle for an angle in standard position? b) If Theta =20^circ ,determine the measures of the angles formed by the arm of the pendulum as an angle in standard position. c) What would the measure of the reference angle be for the angles in standard position given Theta =20^circ
