Answer:
0.2cm towards the retina.
Explanation:
the focal length of the frog eye is
(1/f) = (1/10) + (1/0.8)
f = 0.74cm
Since the distance of the object is 15cm Hence
(1/0.74) = (1/15) + (1/V)
V = 0.78cm
Therefore the distance the retina is to move is
0.78cm - 0.8cm = 0.02cm towards the retina.
Work done = M x g x h
M = Mass of the body in Kg
g = Acceleration due to gravity
h - height of displacement
Work done = (M x g) x h
= 50 N x 1.5 m
= 75 J
Answer:
a = - 11.53[m/s^2]
Explanation:
The airplane slows down as its speed decreases from the initial value of 610 [m/s] to zero.
To calculate the acceleration value we use the following kinematics equation:
where:
Vf = final velocity = 0
Vi = initial velocity = 610 [m/s]
a = acceleration [m/s2]
t = time = 53 [s]
Now replacing:
0 = 610 + (a*53)
-610 = 53*a
a = - 11.53[m/s^2]
The negative sign means that the aircraft is losing speed, i.e. slowing down
A) 0.2m since it's the height of the wave.
b)1s it's how long a wave is.
Answer:
The new angular speed is
Explanation:
From the question we are told that
The angular velocity of the spin is
The original moment of inertia is
The new moment of inertia is
Generally angular momentum is mathematically represented as
Now according to the law of conservation of momentum, the initial momentum is equal to the final momentum hence the angular momentum is constant so
=>
where w is the new angular speed
So
=>
=>