Answer:
Explanation:
u = 4.6 x 10^6 m/s
Let E be the electric field
s = 3.5 cm = 0.035 m
v = 0
a = qE / m
So use third equation of motion
v^2 = u^2 - 2 a s
0 = (4.6 x 10^6)^2 - 2 x q E / m x 0.035
21.16 x 10^12 = 2 x 1.6 x 10^-19 x E / (1.67 x 10^-27 x 0.035)
E = 3865 N/C
(a) The magnitude of electric field is 3865 N/C
(b) the direction of electric field is opposite to the direction of motion of proton, i.e., towards left.
(c) Let t be the time taken
v = u + a t
0 = 4.6 x 10^6 - (1.6 x 10^-19 x 3865) t / (1.67 x 10^-27)
t = 1.24 x 10^-5 sec
(d) For electron, the direction of electric field is same the direction of electron, i.e., rightwards.
Use third equation of motion
v^2 = u^2 - 2 a s
0 = (4.6 x 10^6)^2 - 2 x q E / m x 0.035
21.16 x 10^12 = 2 x 1.6 x 10^-19 x E / (9.1 x 10^-31 x 0.035)
E = 2.1 N/C
Missy's velocity is 24.5 m/s
Explanation:
The kinetic energy of an object is the energy possessed by the object due to its motion. Mathematically, it is given by
where
m is the mass of the object
v is its velocity
In this problem, we know:
K = 15000 J is Missy's kinetic energy
m = 50 kg is her mass
Solving for v, we find her velocity:
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When the object is at the focal point the angular magnification is 2.94.
Angular magnification:
The ratio of the angle subtended at the eye by the image formed by an optical instrument to that subtended at the eye by the object when not viewed through the instrument.
Here we have to find the angular magnification when the object is at the focal point.
Focal length = 6.00 cm
Formula to calculate angular magnification:
Angular magnification = 25/f
= 25/ 8.5
= 2.94
Therefore the angular magnification of this thin lens is 2.94
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Answer:
To convert a milligram measurement to a kilogram measurement, divide the weight by the conversion ratio. The weight in kilograms is equal to the milligrams divided by 1,000,000.
Explanation:
Henry discover the G for earth by
F=GmM\d^2