Answer:
<u>954.4m/s</u>
Explanation:
For a free falling object,it has constant acceleration and a changing velocity.
By using the velocity-time formula, the velocity can be obtained.
The height the rock travelled is the distance.
From,
Velocity (v) = Distance (d) / Time(t)
v = 3245m/3.4s
v = <u>954.4m/s</u>
That js the answer I got. Hope it's right.
Answer:
B. Chemical to Electrical to Radiant
Explanation:
Answer:
Both technicians A and B are right.
Explanation:
-The most common application is to measure the exhaust-gas concentration of oxygen.The probe typically has four wires attached to it: two for the lambda output, and two. The number of wires depends on design and style.
-An oxygen sensor will typically generate up to about 0.9 volts(
) when the fuel mixture is rich and there is little unburned oxygen in the exhaust. When the mixture is lean, the sensor's output voltage will drop down to about 0.1( 
)volts
Answer:
0.667 m/s^2
Explanation: Given that you slow down from 2m/s to a stop 3s.
Using first law of motion.
V = U - at
Where
Final velocity V = 0
Initial velocity U = 2 m/s
Time taken t = 3 seconds
Since the body slow down, the final velocity V will be equal to zero. And the acceleration will be negative.
Substitute all the parameters into the formula
0 = 2 - a × 3
3a = 2
a = 2 /3
a = 0.667 m/s^2
Therefore, your acceleration during this time interval will be 0.667 m/s^2
Answer:
The force of gravity on an object increases with its mass; thus, the acceleration of gravity is constant.
Explanation:
one can prove this by plugging in values to Newton's 2nd law equation
F = ma, or by using the formula to calculate the force of gravity.
Force of Gravity = GMm/r^2
with G being the gravitational constant, M the mass of the earth, m the mass of the falling body, and r the distance from the earth's center.
Force of Gravity can be written as mg, with g being the acceleration due to gravity.
As we can see, m cancels on both sides, leaving
g = GM/r^2
Generally in physics problems, r will be treated as constant to achieve
g = 9.8m/s^2
