Answer:
He took a picture (or "shot") of the buffaloes. How cute :)
<span>The electron is a subatomic particle, symbol e− or β−, with a negative elementary electric charge. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure. The electron has a mass that is approximately 1/1836 that of the proton. Quantum mechanical properties of the electron include an intrinsic angular momentum of a half-integer value in units of ħ, which means that it is a fermion. Being fermions, no two electrons can occupy the same quantum state, in accordance with the Pauli exclusion principle. Like all matter, electrons have properties of both particles and waves, and so can collide with other particles and can be diffracted like light. The wave properties of electrons are easier to observe with experiments than those of other particles like neutrons and protons because electrons have a lower mass and hence a higher De Broglie wavelength for typical energies. Hope this HELPS :D</span>
Answer:
4ms^-2
Explanation:
m = 45Kg, Frictional force = 120N, Applied force = 300N, a = ?
Firstly, you find the net force acting on the body
Net force = Applied force - Frictional force
Net force = 300N - 120N = 180N
F = 180N
using the formula for Force
F = ma
Then making acceleration subject of the formula; you will get:
a = F/m
a = 180N/45Kg
a = 4ms^-2
Answer:
The value is 
Explanation:
From the question we are told that
The speed of the airplane from the north is 
The negative sign is because the direction is towards the south
The speed of the airplane from the east is 
The negative sign is because the direction is towards the west
The distance of the southbound plane from the airport is 
The distance of the westbound plane is 
Generally the distance between the plane is mathematically represented using Pythagoras theorem as
Next differentiate implicitly this equation to obtain the rate at which the distance between the planes changes
So
Here
=> 
=>
=> 
=> 
=>
Here's a bad joke that helped me remember it: Watt's a Joule per second?
