Answer:
Explanation:
According to Bohr's Theory,
The force of attraction acting between the electron and the nucleus is equal to the centrifugal force acting on the electron.
Thus,
......1
Where, Z is the atomic number or the number of protons
r is the atomic radius
v is the velocity of the electron
is the mass of the electron
Also,
Accoriding to Bohr, the angular momentum is quantized. He states that the angular momemtum is equal to the integral multiple of .
....2
solving r from equation 2, we get that:
Putting in 1 , we get that:
Applying values for hydrogen atom,
Z = 1
Mass of the electron () is 9.1093×10⁻³¹ kg
Charge of electron (e) is 1.60217662 × 10⁻¹⁹ C
= 8.854×10⁻¹² C² N⁻¹ m⁻²
h is Plank's constant having value = 6.626×10⁻³⁴ m² kg / s
We get that:
Population specification errors occur when the researcher does not understand who they should survey. This can be tricky because there are multiple people who might consume the product, but only one who purchases it, or they may miss a segment looking to purchase in the future.
Population specification errors occur when the researcher does not understand who they should survey. This can be tricky because there are multiple people who might consume the product, but only one who purchases it, or they may miss a segment looking to purchase in the future.
Population specification errors occur when the researcher does not understand who they should survey. This can be tricky because there are multiple people who might consume the product, but only one who purchases it, or they may miss a segment looking to purchase in the future.
Population specification errors occur when the researcher does not understand who they should survey. This can be tricky because there are multiple people who might consume the product, but only one who purchases it, or they may miss a segment looking to purchase in the future.
Measurement error is generated by the measurement process itself, and represents the difference between the information generated and the information wanted by the researcher. Generally, there is always some small level of measurement error due to uncontrollable factors.
Answer:
a).
b). 2.9925 kV
Explanation:
Given :
For mass spectrometer
The magnetic field = B
B = 0.105 T
a). Given speed, v =
We known
∴
b). Now spectrometer, d = 0.75 cm
We known
= 2.9925 kV
(D)
Explanation:
The more massive an object is, the greater is the curvature that they produce on the space-time around it.
Answer:
The breast bone is anterior to the spine. The collarbone is superior to the shoulder blade. The elbow is proximal to the wrist. The navel is distal to the chin.
Explanation:
The spine, also known as the backbone, is posterior to the breast bone.
The collarbone (also known as the clavicle), which is part of the shoulder girdle, lies superior in position to the shoulder blade (also known as the scapula).
The elbow is the joint between the arm and the wrist. it is proximal to the wrist.
The navel, located on the anterior abdominal wall, is distal to the chin that is part of the face.