The position of a ball rolling in a straight line is given by x=2-3.6t+4.4t2, where x is in meters and t in seconds.

What is the weight of a 30.0 kg object?

A sunbather is lying on a floating raft that is stationary. She then gets up and walks to one end of the raft. Consider the sunbather and raft as an isolated system.

How does the electric forest between charged objects change as objects move away from each other

What is the density of a 700 kg object with a volume of 649 m3? (Density: D = )

Which are examples of transverse waves? Check all that apply.

What is the weight of a 250 g bag of sweets?

Work is done on a ball when a soccer player kicks it. Is the player still doing work on the ball as it rolls across the ground? Explain

Light of wavelength 441.1 nm falls on two slits spaced 0.29 mm apart. What is the required distance from the slits to the screen if the spacing between the first and second dark fringes is to be 4.0 mm?

A car advertisement states that a certain car that emily miller loves can accelerate from rest to 70 km/h in 7 seconds. Find the cars average acceleration

A stone is thrown up from a platform with an initial velocity of 19.8 m/s. if the top of the platform is taken to be the ground level, calculate, (a) the time taken to reach the maximum height, (b) the maximum height reach by the stone (c) its