Physics, 06.11.2019 22:31 Xghoued7268
Acannon directed straight upward launches a ball with an initial speed v. the ball reaches a maximum height h in a time t. then, the same cannon is used to launch a second ball straight upward at a speed 2v. in terms of h and t, what is the maximum height the second ball reaches and how long does it take to reach that height? ignore any effects of air resistance.
Answers: 3
Physics, 21.06.2019 22:00
Which type of microscope would allow the viewer to see ribosomes inside a cell?
Answers: 2
Physics, 21.06.2019 22:30
A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?
Answers: 1
Physics, 22.06.2019 04:30
You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?
Answers: 2
Physics, 22.06.2019 05:00
Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?
Answers: 1
Acannon directed straight upward launches a ball with an initial speed v. the ball reaches a maximum...
Mathematics, 25.02.2021 21:00
Mathematics, 25.02.2021 21:00
Mathematics, 25.02.2021 21:00
Mathematics, 25.02.2021 21:00