A 34 kg boy is riding his bicycle on the road. He exerts an 85 N force parallel to the road. If the acceleration of the bicycle is 1.9 m/s2, then what is the mass of the bicycle?

A.

11 kg

B.

15 kg

C.

34 kg

D.

45 kg

Mendeleev periodic table was that he predicted new?

Describe the difference between weather and climate.

1. When driving in rain the road becomes the most slippery: Just after the rain quits Right after it starts to rain After it has rained for 20 minutes When the wind is blowing at least 25 mph

What is the measure of a change in an object's velocity? (this is all it asks, no answer choices)

Which of the following will increase the force of gravity between two charged objects without affecting the electric force? A. Increasing the distance between the objects B. Increasing the charge of both objects C.

How do mountins building and volcanos relate to plate motion at convergent boundaries

A 20kg box is dropped 13m. how much work is done

Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimum necessary. Find the magnitude of the frictional force between the person and the wall

A ball is being rolled by a normal push of 1000N. it is opposed by friction which has a force of 0.3kN and air resistance which has a force of 23N. Calculate the resultant force.

Consider a Young's two-slit experiment in which the wavelength of light is 37% smaller than the distance between the slits.