A girl pulls a loaded sled with mass m = 40 kg on some horizontal snowy pavement with 115 N of force. The velocity of the sled is constant. The coefficient of kinetic friction μk between the runner and the pavement is 0.3 and the angle θ between the cord and the pavement is 20°. Find the magnitude of the normal force by which the sled affects the pavement. Find the magnitude of the friction force that affects the sled.

Plzz plzzz i'll give you 25 pointshow does the water cycle influence weather in your area? use complete sentences and a specific example from your experience.

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz

State the following: boyle's law and charle's law