Answer:
Explanation:
We know that the formula for resistance in terms of length and area is given by
R = p l/ a
Where p be the resistivity and a be the area of crossection
a = pi × d^2 / 4
Where d be the diameter
a = 3.14 × (1.628 × 10^-3)^2 / 4
a = 2 × 10^-6 m^2
R = 1.68 × 10^-8 × 24 / (2 × 10^-6)
R = 20.16 × 10^-2 ohm
By use of Ohm's law
V = IR
V = 13 × 20.16 × 10^-2
V = 2.62 Volt
Answer:
This question appear incomplete
Explanation:
This question appear incomplete because of the absence of the time the honeybee spent while travelling from the hive. However, if we are to assume that the honeybee spent the same amount of time leaving/travelling as when it was returning. Then the formula to be used is
Speed = distance ÷ time
distance = speed × time
distance = 4 × 1
distance = 4 miles
To determine the displacement of the honeybee, the total distance covered by the honeybee in both to and fro journey will have to be summed (this is because displacement is a vector quantity).
Assuming the the speed and time spent while returning is the same with those spent while leaving, then the displacement will be distance × 2 (sum of all the distance covered)
Thus; 4 × 2 = 8 miles
- 1. The value of m is 3.735
2. The value of n is 7
<h3>What is momentum? </h3>
Momentum is defined as the product of mass and velocity. It is expressed as
Momentum = mass × velocity
<h3>How to determine the value of m and n</h3>
We can obtain the value of m and n by simply obtaining the momentum in scientific notation. This is illustrated below:
- Mass of train = 4.5×10⁵ Kg
- Velocity of train = 8.3×10¹ m/s
- Momentum =?
Momentum = mass × velocity
Momentum = 4.5×10⁵ × 8.3×10¹
Momentum = 3.735×10⁷ Kg⋅m/s
Thus, the value of m and n are: 3.735 and 7
Learn more about momentum:
brainly.com/question/250648
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There mass is a different size (weight)
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