Answer:
(1) body composition, (2) flexibility, (3) muscular strength, (4) muscular endurance, and (5) cardiorespiratory endurance.
Answer:
11.7 m/s
Explanation:
In order for the car to remain in circular motion along the road and not to skid, the frictional force between the tires and the road must be equal to the centripetal force.
Therefore, we can write:
where:
m = 2000 kg is the mass of the car
is the coefficient of friction
is the acceleration due to gravity
v is the speed of the car
r = 20.0 m is the radius of the turn
Substituting and solving for v, we find the speed of the car:
Explanation:
loud sound depends on amplitude, intensity, frequency and energy.
as already mention high intensity sounds are perceived as loud sounds.
and the intensity of the sound is the rate at which the energy through a cross sectional area of a medium. higher intensity means higher amplitude. if we put more energy as source means we providing higher amplitude vibrations to the particles which cause the increase in intensity result is louder sound.
Answer:
The magnitude of the electrostatic force decreases by a factor 9
Explanation:
The electrostatic force between two charges is given by:
where
k is the Coulomb's constant
q1 and q2 are the two charges
d is the distance between the two charges
We see that the magnitude of the force is inversely proportional to the square of the distance. If the distance is increased to 3d: d' = 3d, the new electrostatic force would be:
So, the electrostatic force decreases by a factor 9.