Greenhouse. because the earth atmosphere act the house of a greenhouse. keeps warm air in and cold air out
First write down all the known variables:
d = -1.1m
a = -9.8m/s^2
vi = 0m/s
t = ?
Now use the kinematic equation that relates all the variables:
d = vi*t + (1/2)at^2
(-1.1) = (0)t + (1/2)(-9.8)t^2
-1.1 = -4.9t^2
0.22445 = t^2
0.47s = t
It takes 0.47 seconds for the juice to reach the ground.
Answer:
Distance = 40 meters.
Explanation:
Given the following data;
Force = 25N
Time = 10 seconds
Power = 100 Watt
To find the distance;
First of all, we would determine the work done;
Workdone = power * time
Workdone = 100 * 10
Workdone = 1000 Nm
Next, we use the following formula to find the distance;
Workdone = force * distance
1000 = 25 * distance
Distance = 1000/25
Distance = 40 meters.
3.5 seconds is 3500 milliseconds.
Answer:
v = 3.53x10⁻³ m/s.
Explanation:
We can find the velocity of the rock by energy conservation:
Where:
<em>i</em> is for initial and<em> f</em> is for final
k: is the stiffness of the rubber = 20 N/m
x: is the distance of the rubber compression = 5 mm = 0.005 m
m: is the mass of the stone = 40 kg
v: is the velocity =?
Hence, the velocity is:
Therefore, the velocity with which the stone leaves the catapult is 3.53x10⁻³ m/s.
I hope it helps you!
