Answer:
<h2>Gravity :</h2><h3>the force that attracts a body towards the centre of the earth, or towards any other physical body having mass.</h3>
<h2>Solar day</h2><h3>A solar day is the time it takes for the Earth to rotate about its axis so that the Sun appears in the same position in the sky.</h3><h2> or</h2><h3>It is the time between successive meridian transits of the sun at a particular place.</h3>
Answer:
Accelrtation:a vehicle's capacity to gain speed within a short time.EX:An object was moving north at 10 meters per second.
Velociy:the speed of something in a given direction EX:Velocity is the rate of motion, speed or action. An example of velocity is a car driving at 75 miles per hour.
Explanation:
Vi = 0m/s
A = 99m/
Vf = 445m/s
T = 4.5s
D = ?
D = Vi(t) + 1/2(a)(t²)
D = 0m/s ( 4.5s) + 1/2(99m/s²)(4.5s)²
D = 1002 m
D = 1 x 10³ m
Scientists believe that um the big bang created the earth
Answer:
30ft/s
Explanation:
U'1-2 = 0
Using the equation
T1 + Vg1 = T2 + Vg2
Take dactum Vg1 = 0 at ground level
T1 =[ 1/2 × (175 + 10)/32.2] × V^2
T1 = 2.87V^2
T2 = 0
Vg1 = (175 + 10) ×(42/12) = 648ft.lb
Vg2 = 175(18) + 10(8) = 3230ft.lb
Therefore, 2.87V^2 + 648 = 0 + 3230
3230 - 648 = 2.87V^2
2582 = 2.87V^2
V^2 = 2582/2.87
V ^2 = 889.65
V = Sqrt (889.65)
V = 29.99 = approximately 30ft/s
