Answer and Explanation:
As you can see the boys are pulling in the same direction. This means that we have an example of an unbalanced force, also called the resulting force, since the forces are not canceling out. This whole situation will have a result which is to create an unbalanced net force to move the object or keep it in repayment and that is what we will discover.
First, let's find out what force the two boys exerted. This is very simple, we only need to add the force exerted by the two. 5N + 5N = 10N
The cabinet will be able to move if the force exerted by the two boys (10N) manages to overcome the resistance and the force exerted by the cabinet itself. If they manage to overcome the resistance of the cabinet, the cabinet will move towards the force applied by the boys.
Hello!
To answer your question:
The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others. Small molecules that are nonpolar (have no charge) can cross the membrane easily through diffusion, but ions (charged molecules) and larger molecules typically cannot.
Two examples are:
Charged Ions
An ion is a molecule that is charged because it has lost or gained an electron.
Large Polar Molecules
Large uncharged molecules, such as glucose, also cannot easily permeate the cell membrane.
Hope this helps!
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Hello! Succession is not really harmful to ecosystems and it’s not a one-time event, because things come and go overtime. Therefore, it’s not A or D. It is necessary for ecosystem recovery, because it’s needed to continue on with things, just like families reproduce to make family continue. It’s not that bad. It’s just a natural process that happens. The answer is B: natural recovery process.
1. Red-shift, which is basically the Doppler Effect, but with light. Because stars in other galaxies appear to give off red light, this shows that they are moving away from us (Earth). Red light is on the far left of the Visible Light Spectrum, so things moving away from us appear to be red, while things moving towards us appear blue (the other end of the spectrum). This suggests that the universe is expanding all the time - and therefore it might have started from a single explosion - the Big Bang.
2. Cosmic Microwave Background Radiation (CMBR) has been found by scientists to be coming from all directions in space, and is suspected to be 'left over' energy from the Big Bang.
