Answer:
The magnitude of the electrostatic force is 120.85 N
Explanation:
We can use Coulomb's law to find the electrostatic force between the down quarks.
In scalar form, Coulomb's law states that for charges 
and 
separated by a distance d, the magnitude of the electrostatic force F between them is:
where 
is Coulomb's constant.
Taking the values:
and knowing the value of the Coulomb's constant:
Taking all this in consideration:
Answer:
The speed with which the pebble strikes the ground is 30.4m/s
Explanation:
Initial velocity (u) = 17.5m/s, height (h) = 31.5m, acceleration due to gravity (g) = 9.8m/s^2
V^2 = u^2 + 2gh = 17.5^2 + 2×9.8×31.5 = 306.25 + 617.4 = 923.65
V^2 = 923.65
V = √923.65 = 30.4m/s
Its gotta be 7k bc that's what it adds up too
Answer: Heart can beat 140 times in = 2 minutes
Answer:
160×10⁶ bar
Explanation:
Bulk modulus is defined as:
K = -V ΔP / ΔV
where V is the initial volume,
ΔP is the change in pressure,
and ΔV is the change in volume.
Given:
K = 160×10⁹ Pa
ΔV = -0.01V
160×10⁹ Pa = -V ΔP / (-0.01V)
160×10⁹ Pa = ΔP / 0.01
ΔP = 160×10¹¹ Pa
ΔP = 160×10⁶ bar
