Which property of the isotopes must be different?
the atomic number
the electric charge
...
Physics, 08.12.2020 01:00 musicaljay1276
Which property of the isotopes must be different?
the atomic number
the electric charge
the element name
the mass number
Answers: 1
Physics, 22.06.2019 11:00
Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?
Answers: 1
Physics, 22.06.2019 16:40
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
Physics, 23.06.2019 00:10
Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.
Answers: 2
Physics, 23.06.2019 01:00
Suppose that two objects attract each other with a gravitational force of 16 units. if the distance between the two objects is double, what is the new force of attraction between the two objects?
Answers: 3
History, 28.01.2021 19:40
Mathematics, 28.01.2021 19:40
Biology, 28.01.2021 19:40
Health, 28.01.2021 19:40
Mathematics, 28.01.2021 19:40
Mathematics, 28.01.2021 19:40
Biology, 28.01.2021 19:40
Mathematics, 28.01.2021 19:40
Mathematics, 28.01.2021 19:40
Mathematics, 28.01.2021 19:40