1.A box sliding with a constant speed down a ramp exhibits in decreasing velocity (false or true) 2.it takes you 1.5 minutes to walk with an average velocity of 1.8m/s to the north from the bus to stop the musuem entrance. the displacement will be equal to 1.620 x 10³ (true or false)
3.simpson drives his car with an average velocity of 72.0 km/h to the east. it will take him 2.8 hours to drive 144 km on a straight high way (true or false)
4.heather and matthew walk with an average velocity of 2m/s east ward. if it takes them 45 min to walk to the store, their displacement will be equal to 4500 (true or false)

Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.