Answer:
![\frac{V_{e}}{V_{h}}=0.428*10^{2}](https://tex.z-dn.net/?f=%5Cfrac%7BV_%7Be%7D%7D%7BV_%7Bh%7D%7D%3D0.428%2A10%5E%7B2%7D)
Explanation:
From conservation of energy states that
![K_{i}+v_{i}=v_{f}+K_{f}\\ as\\K_{i}=0\\K_{f}=1/2mv^{2}\\ v_{i}=qv\\v_{f}=0\\So\\qv=1/2mv^{2}\\ v=\sqrt{\frac{2qv}{m} }\\ Velocity_{electron}=\sqrt{\frac{2qv}{m_{e}} }\\Velocity_{hydrogen}=\sqrt{\frac{2qv}{m_{h}} }\\\frac{V_{e}}{V_{h}}=\sqrt{\frac{\frac{2qv}{m_{e}}}{\frac{2qv}{m_{h}}}}\\\frac{V_{e}}{V_{h}}=\sqrt{\frac{m_{h}}{m_{e}} }\\\frac{V_{e}}{V_{h}}=\sqrt{\frac{1.67*10^{-27} }{9.11*10^{-31} } }\\\frac{V_{e}}{V_{h}}=0.428*10^{2}](https://tex.z-dn.net/?f=K_%7Bi%7D%2Bv_%7Bi%7D%3Dv_%7Bf%7D%2BK_%7Bf%7D%5C%5C%20as%5C%5CK_%7Bi%7D%3D0%5C%5CK_%7Bf%7D%3D1%2F2mv%5E%7B2%7D%5C%5C%20v_%7Bi%7D%3Dqv%5C%5Cv_%7Bf%7D%3D0%5C%5CSo%5C%5Cqv%3D1%2F2mv%5E%7B2%7D%5C%5C%20v%3D%5Csqrt%7B%5Cfrac%7B2qv%7D%7Bm%7D%20%7D%5C%5C%20Velocity_%7Belectron%7D%3D%5Csqrt%7B%5Cfrac%7B2qv%7D%7Bm_%7Be%7D%7D%20%7D%5C%5CVelocity_%7Bhydrogen%7D%3D%5Csqrt%7B%5Cfrac%7B2qv%7D%7Bm_%7Bh%7D%7D%20%7D%5C%5C%5Cfrac%7BV_%7Be%7D%7D%7BV_%7Bh%7D%7D%3D%5Csqrt%7B%5Cfrac%7B%5Cfrac%7B2qv%7D%7Bm_%7Be%7D%7D%7D%7B%5Cfrac%7B2qv%7D%7Bm_%7Bh%7D%7D%7D%7D%5C%5C%5Cfrac%7BV_%7Be%7D%7D%7BV_%7Bh%7D%7D%3D%5Csqrt%7B%5Cfrac%7Bm_%7Bh%7D%7D%7Bm_%7Be%7D%7D%20%7D%5C%5C%5Cfrac%7BV_%7Be%7D%7D%7BV_%7Bh%7D%7D%3D%5Csqrt%7B%5Cfrac%7B1.67%2A10%5E%7B-27%7D%20%7D%7B9.11%2A10%5E%7B-31%7D%20%7D%20%7D%5C%5C%5Cfrac%7BV_%7Be%7D%7D%7BV_%7Bh%7D%7D%3D0.428%2A10%5E%7B2%7D)
V = f x wavelength
V = 5 x 10
V = 50m/s
Explanation:
To determine your total daily calorie needs, multiply your BMR by the appropriate activity factor, as follows: If you are sedentary (little or no exercise) : Calorie-Calculation = BMR x 1.2. If you are lightly active (light exercise/sports 1-3 days/week) : Calorie-Calculation = BMR x 1.375.
<em><u>HAPPY TO HELP</u></em>
Answer:
Net force exerted on the radio is 27.5 Newton.
Given:
Mass = 5.5 kg
Acceleration = 5 ![\frac{m}{s^{2} }](https://tex.z-dn.net/?f=%5Cfrac%7Bm%7D%7Bs%5E%7B2%7D%20%7D)
To find:
Force exerted on the radio = ?
Formula used:
F = ma
Where F = net force
m = mass
a = acceleration
Solution:
According to Newton's second law of motion,
F = ma
Where F = net force
m = mass
a = acceleration
F = 5.5 × 5
F = 27.5 Newton
Hence, Net force exerted on the radio is 27.5 Newton.