Physics, 12.12.2020 15:50 tylorwsimmons
A toy car rolls down a straight inclined track and its speed increases steadily. At the moment when the car reaches the flat surface at the base of the track, its speed remains constant. Which statement best explains why the speed of the car remains the same when it reaches the flat surface?
The forces on the car are balanced.
Gravity is no longer acting on the car.
The force of the track acting on the car slows it down.
Frictional force is greater on the flat surface of the track.
Answers: 2
Physics, 21.06.2019 16:10
For a particular reaction, ? h = -144.6 kj and ? s = -301.2 j/k. calculate ? g for this reaction at 298 k.
Answers: 1
Physics, 21.06.2019 16:20
Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude f due to the other. with time, charge gradually leaks off of both spheres. when each of the spheres has lost half its initial charge, the magnitude of the electrostatic force will be
Answers: 1
Physics, 22.06.2019 05:30
What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?
Answers: 3
Physics, 22.06.2019 14:30
Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil
Answers: 2
A toy car rolls down a straight inclined track and its speed increases steadily. At the moment when...
Computers and Technology, 07.09.2020 01:01
English, 07.09.2020 01:01
Chemistry, 07.09.2020 01:01
Mathematics, 07.09.2020 01:01
English, 07.09.2020 01:01