Answer:
The last two bearings are
49.50° and 104.02°
Explanation:
Applying the Law of cosine (refer to the figure attached):
we have
x² = y² + z² - 2yz × cosX
here,
x, y and z represents the lengths of sides opposite to the angels X,Y and Z.
Thus we have,
or
substituting the values in the equation we get,
or
or
X = 26.47°
similarly,
or
or
Y = 49.50°
Consequently, the angel Z = 180° - 49.50 - 26.47 = 104.02°
The bearing of 2 last legs of race are angels Y and Z.
Answer:
-7500 N
Explanation:
v₀ = 108 km/h = 30 m/s
v = 0 m/s
t = 4 s
a = Δv / Δt
a = (0 m/s − 30 m/s) / 4 s
a = -7.5 m/s²
F = ma
F = (1000 kg) (-7.5 m/s²)
F = -7500 N
Answer:
We multiply 4.24 by 38.0 to get the answer.
Explanation:
Answer:
a) l = 24 cm
b) υ = 2.5 × 10⁹ Hz
Explanation:
given,
wavelength of microwave = 12 cm
length of microwave
= 2 × λ
= 2 × 12
l = 24 cm
microwave is an electromagnetic wave speed is 3 × 10⁸ m/s
v = υ λ
υ =
υ =
υ = 2.5 × 10⁹ Hz
Volume= Length X width X height.
Plug in the values for each and solve for the volume.
V= (L)(W)(H)
V=(4cm)(5cm)(10cm).