Answer:
the swing on the right is more likely to break
since the vertical component of the tension of the rope has to balance the weight. ie. the resultant tension in the rope is greater
NEPTUNE is the planet that takes the longest to orbit the Sun.
According to Kepler's law of harmonies, Planets closer to the Sun orbit it in a shorter time period than planets further from the Sun.
Planets arrangement from the Sun.
1) Mercury
2) Venus
3) Earth
4) Mars
5) Jupiter
6) Saturn
7) Uranus
8) Neptune
9) Pluto
So based on the given choices and arranged according to the longest to orbit to the shortest to orbit, the order would be: Neptune, Jupiter, Mars, and Venus
A) F1/A1=F2/A2
F2 = 12000 Newtons, while F1 = 400 Newtons and area A1= 6 cm²
400/6 = 12000/A2
A2 = (6 × 12000)/400
= 180 cm²
b) How long does this lift the car
d2 =F1/F2×d1
= (400/12000)× 20
= (1/30)×20
= 20/30
= 0.67 cm
This lifts the car a distance of 0.67 cm
Answer:
12.974 m/s
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
g = Acceleration due to gravity = 9.81 m/s²
= Coefficient of friction =0.66
a = Acceleration = 
Car's original speed before braking was 12.974 m/s
Answer:
Explanation:
Frequency of signal = 1260 KHz
= 1260 x 10³ = 126 x 10⁴ Hz
velocity of wave = 3 x 10⁸ m /s
wavelength = velocity / frequency
= 
= 238 m
b )E(t) = E0 sin(2πft)
E(t) = 0.41 sin(2πft)
when t = 4.8 μs
= 4.8 x 10⁻ ⁶
E(t) = 0.41 sin(2π x 126 x 10⁴ x4.8 x 10⁻ ⁶ )
= 0.41 sin(2π x 126 x 10⁴ x4.8 x 10⁻ ⁶ )
= 0.41 sin(37.98 rad )
= .11 N/C
