What is the mean of the following numbers 2,4,3,4,4,1,3?

21

7

3

4

What are the units for velocity?

The mass of an object is 201 g The object requires 150J to raise its temperature by 100°C. What is the specific heat of the object? 7.46 J/kg-K 0.00130 J/kg - K 3,020,000 J/kg. K 1500 J/kg. K

List one type of erosion and describe how it happens?

If 2 automobiles have the same velocity, do they have the same acceleration?

Which of the following represents the velocity of a moving object? B. 40 m north A. 40 C. 40 m/s D. 40m/s north

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.

Which of the following situations would produce an average velocity of zero? A) a round-trip to school and back B) a horse galloping in a field C) the criss-crossing path of a flying bug D) a trip, first to the moon, then onto Mars