<u>The question doesn't have any particular requirement, but we'll compute the displacement of the plane from its initial and final landing point in the pasture
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Answer:
Explanation:
<u>Displacement
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The vector displacement 
is a measure of the change of position of a moving object. The displacement doesn't depend on the path followed, only on the final and initial positions. Its scalar counterpart, the distance, does measure the total space traveled and considers all the changes in the direction taken by the object. To find the displacement, we must add all the particular displacements by using vectors.
The plane first flies 160 km at 66° east of north. To find the vector expression of this displacement, we must know the angle with respect to the East direction or North of East. Knowing the angle East of North is 66°, the required angle is 90°-66°=34°
The first vector is expressed as
The second displacement is 260 km at 49° South of East. This angle is below the horizontal respect to the reference, thus we use -49°.
The second vector is expressed as:
The total displacement is computed as the vectorial sum of both vectors
The magnitude of the total displacement is
And the direction is
C is a non-metal and so is O. So the answer is CO
Answer:
Explanation:
What problem says can be written mathematically as:
Where:
The problem itself it's really simple, we only need to replace the data provided in the previous equation, but first, let's convert the units of the velocity from cm/s to m/s because we have to work with the same units and working in meters is the most apropiate action, because is the base unit of length in the International System of Units:
Now, we can replace the data in the equation and find the time it will take the bird to travel 3.7 m:
Solving for t, multiplying by t both sides, and dividing by 0.52 both sides:
Answer:
Temperature in Fahrenheit will be 124.52°F and in kelvin 324.4 K
Explanation:
We have given temperature in of silver in degree Celsius as 
We have to convert this temperature in Fahrenheit and kelvin
For Fahrenheit
Temperature in Fahrenheit = 
For kelvin
In kelvin = 51.4+273 = 324.4 K
So temperature in Fahrenheit will be 124.52°F and in kelvin 324.4 K
Answer:
a) F = 21.16 N, b) a = 3.17 10²⁸ m / s
Explanation:
a) The outside between the alpha particles is the electric force, given by Coulomb's law
F = 
in that case the two charges are of equal magnitude
q₁ = q₂ = 2q
let's calculate
F = 
F = 21.16 N
this force is repulsive because the charges are of the same sign
b) what is the initial acceleration
F = ma
a = F / m
a = 
21.16 / 4.0025 1.67 10-27
a = 3.17 10²⁸ m / s
this acceleration is in the direction of moving away the alpha particles
