A 1100 kg car moves along a horizontal road at speed vo = 12.4 m/s. The road is
wet, so the static friction coefficient between
the tires and the road is only js = 0.120 and
the kinetic friction coefficient is even lower,
* = 0.0840.
The acceleration of gravity is 9.81 m/s?.
Assume: No aerodynamic forces; 9
9.81 m/s², forward is the positive direction.
What is the highest possible deceleration of
the car under such conditions?

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

Ahurricane sweeps across the ocean and damages the houses of people living along the coast. which of these does not play any role in this interaction? air water glaciers living things