Answer:
v = 4.18 m/s
Explanation:
given,
frequency of the alarm = 872.10 Hz
after passing car frequency she hear = 851.10 Hz
Speed of sound = 343 m/s
speed of the jogger = ?
speed of the
v_o = 872.1 - 10.5
The speed of jogger
v = 4.18 m/s
Answer:
The magnification produced by a plane mirror is +1
means then the size of the image is equal to the size of the object. If m has a magnitude greater than 1 the image is larger than the object, and an m with a magnitude less than 1 means the image is smaller than the object.
Answer:
The excited electron itself can be passed to another molecule
Explanation:
Total displacement along the length of mountain is given as
L = 235 m
angle of mountain with horizontal = 35 degree
now we will have horizontal displacement as
x = L cos35
x = 235 cos35 = 192.5 m
similarly for vertical displacement we can say
y = L sin35
y = 235 sin35 = 134.8 m
The answer is: Diameter = d = 6.1 cm
Explanation:
Angular separation between the two stars = Q = 10^-5 rad.
Wavelength =λ= 500 * 10^-9 m
The smallest diameter = d = ?
As Q = 1.22*(λ/ d)
From this
d = 1.22*(λ/Q) --- (1)
Plug in the value in (1):
(1) => d = 1.22*((500*10^-9)/10^-5))
d = 0.061 m
d = 6.1 cm