Major help!! A man pushes a 30.0 kg lawnmower in the x direction with an applied force of 225 N at a constant velocity. The handle of the lawn mower makes an angle of 33º with the horizontal.
If the applied force is increased to 300 N, and the lawn mower moves over a new surface which has a kinetic friction force with a magnitude equal to 200 N, what is the acceleration?

Water at room temperature of 20.0°c is poured into an aluminum cylinder which has graduation markings etched on the inside. the reading in the graduations is 300.0 cc. the cylinder with the water in it is then immersed in a constant temperature bath at a temperature of 100°c. what is the reading for the level of water on the graduations of the cylinder after the water and the cylinder reach thermal equilibrium with the bath? the volume coefficient of expansion of water is 2.07 x 10^-4 k-1, and the linear coefficient of expansion of aluminum is 23.0 x 10^-6 k-1. a) 305.0 cc b) 304.0 cc c) 303.5 cc d) 303.3 cc e) 304.5 cc

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

What are the similarities & differences between a thermistor and a light dependent resistor in physics?