I think the answer is D.) the theory of plate tectonics.
If you don't understand plate tectonics then you are lost. <span />
Answer:
you can use a balance
Explanation:
when you tend to measure something you are using your brain so why dont you use your brain dimwitt
Answer:
404.4 m
Explanation:
Converting the initial speed from km/h to m/s then
The acceleration is resolved as shown in the figure hence
deceleration of the truck along the inclined plane will be
where g is acceleration due to gravity
Substituting g with then
Using kinematic equation
and making s the subject then
where v and u are final and initial velocities respectively
Substituting 0 for v, 38.89 m/s for u and then
If a potassium atom loses one electron than it becomes a +1 charge, because the electrons are negative and the nucleus is positive (the positive comes from the protons). The protons and electrons balance out so it has a neutral charge, but if the atom loses an electrons it has a positive charge, but if the atom gains an electron than it becomes negative. the charge (+/- and the number) of the atom depends on how many electron the atom gains/loses.
the answer is (D.) +1
I hope this helps.
Answer:
Explanation:
Given
Orbital speed is v
Mass of planet is m
Radius of circular orbit is r
suppose M is the mas of satellite then centripetal force on satellite is equal to the Gravitational Pull.
where G=gravitational constant
thus on solving we get