Answer:
c) 0.16 m/s2
Explanation:
The computation of the acceleration during the first km of travel is shown below
Given that
Final velocity = v = 42 m/s
Initial velocity = u = 0 m/s
Distance = 5.6km
Based on the above information, we need to apply the following formula
As we know that
= 0.1575 m/s ^2
hence, the correct option is c. 0.16 m.s^2
Answer:
Biasing - Biasing means being unfair to someone or something, and liking the other one or helping them.
Doping - Doping is where a person use drug to get better at sporting and get stronger muscles, such as getting stronger, getting faster and so on. It is mostly used by athletics.
Answer:
Both hit at the same time
Explanation:
If air resistant is ignored, then gravitational acceleration g is the only thing that affect the bullets vertical motion, no matter what their horizontal motion is. Since both bullets are starting from rest, vertically speaking their speeds are 0 initially, they are both subjected to the same acceleration g, then they travel at the same rate and would reach the ground at the same time.
<u>Given data:</u>
charge 1 (q₁) = 8.0 × 10⁻⁹ coulombs
charge 2 (q₂) = -1.4 × 10⁻⁸ coulombs
distance between fur and brush (r) = 5.0 × 10⁻¹ m
We know that,
The couloumb's law describes the charge between two particles
Mathematically,
<em> F = k.(q₁ . q₂)/r² </em> ----------------------- (i)
Where F = Force between particles
k = constant, 8.99 × 10⁹ Nm²/C² -------------- (ii)
keep the charge, distance values and value of k in equation (i), to determine the magnitude of force
F = 8.99 × 10⁹ ×{ (8.0 × 10⁻⁹) × ( -1.4 × 10⁻⁸)} / (5.0 × 10⁻¹)²
= -4.02 × 10⁻⁶
<em>The force is negative means "the force is attractive"</em>
<em> </em>
Air blows from one place to another because gases move from high-pressure areas to low-pressure areas
In simple words
it happens because of pressure differences.
