The kind of wave it is Longitudinal
Answer:
the work done is zero.
Explanation:
Given;
applied force, F = 8000 N
time of force application, t = 15 s
Work done is given as the product of force and displacement. Since the car is unable to move, then the displacement is zero and the work done is zero.
Work done = Force x displacement
Work done = 8000 N x 0
Work done = 0
Therefore, the work done is zero.
The Basketball with the greatest gravitational potential energy is : Basketball 4 feet above the ground ( c )
<u>Given data :</u>
masses = constant
H₁ = 2 ft
H₂ = 3 ft
H₃ = 4 ft
g = 9.81 m/s²
<h3><u>Procedure to determine the basketball with the greatest gravitational P.E </u></h3>
we will apply the equation below
Gravitational potential energy ( U ) = mgh
U = 2 * 9.81 = 19.62
U = 3 * 9.81 = 29.43
U = 4 * 9.81 = 39.24
From the calculations the basketball with the greatest gravitational potential energy is the basketball at 4ft above the ground
Learn more about gravitational potential energy : brainly.com/question/15896499
1h----------------> 70x3=210 bacteria
2h-----------------> 210*3=630 bactaeria
let be y the number of bacteria at the t=0h
it is y=70 3^0
for t= 1h
y=70*3^1=210
for t=2h
y=70*3^2=630
so we can write y=70*3^x, where x is the number of hour
