The curved section of a horizontal highway is a circular unbanked arc of radius 740 m. if the coefficient of static friction between this roadway and typical tires is 0.40, what would be the maximum safe driving speed for this horizontal curved section of highway?

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.