Answer:
a = -2.82 m/s²
v = 18.4 m/s
Explanation:
Initial velocity, u = 26.0 m/s
Final velocity, v = 0 m/s
Distance travelled, s = 120m
Using
v² = u² + 2as
0 = 26² + 2(120)a
a= -2.82 m/s²
Velocity of the car when it was 60.0m past the point where the brakes were applied:
u = 26.0 m/s
a = -2.82 m/s²
s = 60m
Using
v² = u² + 2as
v² = 26² + 2(-2.82)(60)
v² = 337.6
v = 18.4 m/s
Answer:
T=502.5N
Ax=171.8N
Explanation:
The computation of the tension T in the rope and the forces exerted by the pin at A is shown below:
vertical forces sum = Ay + Tsin20 + T - 245 - 883 = 0
Now
horizontal forces sum = Ax - Tcos70
Now Moment about B
-Ay × 4.8 + 245 × 2.4 + 883 × 1.8=0
Ay=453.6N
Now substitute in sum of vertical forces T=502.5N
Ax=171.8N
Answer:
I really don't know but please if you find the correct answer tell me because I'm eager to know
Answer:
if i am not mistaken the volume is 7, because it only took that much space
Answer:
Wavelength = 3.74 m
Explanation:
In order to find wavelength in "metres", we must first convert megahertz to hertz.
1 MHz = 1 × 10⁶ Hz
80.3 Mhz = <em>x</em>
<em>x </em>= 80.3 × 1 × 10⁶ = 8.03 × 10⁷ Hz
The formula between wave speed, frequency and wavelength is:
v = fλ [where v is wave speed, f is frequency and λ is wavelength]
Reorganise the equation and make λ the subject.
λ = v ÷ f
λ = (3 × 10⁸) ÷ (8.03 × 10⁷)
λ = 3.74 m [rounded to 3 significant figures]
