Answer:
The driveway measures 4.98 m
Explanation:
We aim to find the length of the driveway, thus utilizing the following equations
W=ΔK.E where W represents work and ΔK.E indicates the change in kinetic energy
Moreover,
also
W = F.d where F is the force and d denotes distance
Given that
= 4000 N indicating this frictional force
m = 2100 Kg
θ= 20.0°
V=3.8 m/s representing the car's speed at the bottom of the driveway
W=Δ K.E
= 15162 J
As the x component of gravity is
= mg sinФ
thus
= (2100)(9.8)sin(20.0°) results in
= 7038.77 N
And the Net force is
=
-
= 7038.77 - 4000 = 3038.77 N
So, the length of the driveway equals W / (
) = 15162/3038.77 = 4.98 m
Thus, this is the length of the driveway.
Response:
n (a sin θ) = m λ₀
Since n > 1, this indicates that the fringes separate further apart
Clarification:
In a diffraction experiment, the equation for constructive interference fringes is provided by
a sin θ = m λ₀
It is presumed that the air has been evacuated from the experiment, setting n = 1
When this experiment is conducted in water, the wavelength alters
λₙ = λ₀ / n
for achieving constructive interference
a sin θ = m λₙ
we replace
a sin θ = m λ / n
n (a sin θ) = m λ₀
Given that water's refractive index is n = 1.33, the distance between the fringes increases due to n > 1, causing the fringes to move apart
Incomplete query. The complete inquiry is as follows
Calculate the torque exerted on the shaft of a vehicle transmitting 225 hp at a rotation speed of 3000 rpm.
Response:
Torque=0.51 Btu
Analysis:
Given Information
Power=225 hp
Revolutions =3000 rpm
To determine
T( torque )=?
Process
As an object is moved by force over a distance, work is performed on that object. Similarly, when torque rotates an object through an angle, work is also accomplished.
