Why is physics harder than math

A child rides a bicycle in a circular path with a radius of 2.0 m. The tangential speed of the bicycle is 2.0 m/s. The combined mass of the bicycle and the child is 43 kg. What is the magnitude of the bicycle's centripetal acceleration? a. 1.

Which of the following is not an ethical consideration of social research? a. protecting the anonymity of the participants b. creating a safe environment for research c. using research to reform society d.

Which type of central heating system is often used when heating many buildings from a central location? A. electric baseboard B. forced-air C. hot-water D. steam

In what states does water appear on earth and on other planets?

The unit of electric potential or electromotive force is the ohm ampere franklin volt

The speed of a car is decreasing uniformly from 35 m/s to 15 m/s in 4 s the magnitude of the car's acceleration is

An object that has kinetic energy must what?

A student measures the length and width of a rectangle to be 40.7 cm and 0.599 cm, respectively. Wanting to find the area (in cm2) of this rectangle, the student multiplies on a calculator and obtains a result of 24.3793.

A red apple is illuminated by green light. what color will the apple appear as?

Explain why a roller coaster's second hill cannot be taller than the first hill.