Physics, 18.03.2021 05:30 aprilreneeclaroxob0c
An 5kg object is released from rest near the surface of a planet. The vertical position of the object as a function of time is shown in the graph. All frictional forces are considered to be negligible. What is the closest approximation of the weight of the object.
a) 300N
b) 30N
c) 5N
d) 150N
Answers: 1
Physics, 21.06.2019 18:00
Aproton is projected toward a fixed nucleus of charge +ze with velocity vo. initially the two particles are very far apart. when the proton is a distance r from the nucleus its velocity has decreased to 1/2vo. how far from the nucleus will the proton be when its velocity has dropped to 1/4vo?
Answers: 3
Physics, 22.06.2019 04:30
In a system, when potential energy decreases, then entropy also decreases. true false
Answers: 2
Physics, 22.06.2019 11:50
The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e
Answers: 1
Physics, 22.06.2019 12:50
Which changes would result in a decrease in the gravitational force btween two objects? check all that apply
Answers: 1
An 5kg object is released from rest near the surface of a planet. The vertical position of the objec...
Chemistry, 26.01.2021 01:00
Mathematics, 26.01.2021 01:00
Mathematics, 26.01.2021 01:00
History, 26.01.2021 01:00
Mathematics, 26.01.2021 01:00
English, 26.01.2021 01:00
Mathematics, 26.01.2021 01:00
Mathematics, 26.01.2021 01:00
History, 26.01.2021 01:00