So, why can a properly executed karate kick break a concrete block without fracturing bones [16]? first, bone is a very strong m

Answer:

44.4m/s^2

Explanation:

Utilize the equation...S = ut + 1/2at^2

where...S = 32m...u = 0m/s....t = 1.20s

32 = (0)(1.20) + 0.5(1.20^2)a

; The acceleration due to gravity is 44.4m/s^2

Answer:

0.0031 m

Explanation:

y = Length of pixel = 281 μm

L = Distance to screen = 1.3 m

= Wavelength = 550 nm

d = Pupil diameter

= Angle

We have the expression

We have the expression

The pupil diameter calculates to 0.0031 m

There's an absence of circuit diagrams.  

Initially, this causes worry for a moment, until we remember that we have no understanding of the experiment mentioned in the problem either, rendering such worries unnecessary.

Answer:

The horizontal distance d that the ball covers before it lands is 1.72 m.

Explanation:

Given,

Height of ramp

Height of bottom of ramp

Diameter = 0.17 m

We need to determine the horizontal distance d the ball travels before landing.

We need to calculate the time

Using the equation of motion

Next, we can find the ball's velocity

Using the kinetic energy formula

By applying the conservation of energy

Next, we determine the horizontal distance d the ball travels before landing

Using the distance formula

Where. d = distance

t = time

v = velocity

We substitute the values into the formula

Thus, the horizontal distance d that the ball travels before it lands is 1.72 m.