Answer:
24 m/s
Explanation:
V=Vi+at
given initial velocity is 0, acceleration is 2 and time is 12 sec
find final velocity by plugging in the variables into the equation above.
V=0+2x12=24m/s
Answer:
W = 439998 J = 439.99 KJ
Explanation:
First, we will calculate the acceleration of the car by using the first equation of motion:
where,
a = acceleration = ?
vf = final speed = = 30 m/s
vi = initial speed = = 10 m/s
t = time = 30 s
Therefore,
a = 0.67 m/s²
Now, we will calculate the force applied by the engine:
F = ma
where,
F = force = ?
m = mass = 1100 kg
Therefore,
F = (1100 kg)(0.67 m/s²)
F = 733.3 N
Now, we will calculate the distance covered by the car by using the second equation of motion:
s = 600 m
Now, the work done (W) by engine can be calculated as follows:
W = Fs
W = (733.3 N)(600 m)
<u>W = 439998 J = 439.99 KJ</u>
Answer: A is your answer i am sorry if i am wrong
Explanation:
he first PLCs were programmed with a technique that was based on relay logic wiring schematics. This eliminated the need to teach the electricians, technicians and engineers how to program a computer - but, this method has stuck and it is the most common technique for programming PLCs today.
Answer: D. Diffract
Explanation:
Diffraction is a phenomenon that is based on the deviation of the waves (light waves in this case) when encountering an obstacle.
In addition, it is important to note this phenomenom occurs in all types of waves (ncluding electromagnetic waves).
So, in a general way:
Diffraction happens when a wave (mechanical or electromagnetic wave) meets an obstacle or a slit . When this occurs, the wave bends around the corners of the obstacle or passes through the opening of the slit that acts as an obstacle.
Hence, the correct option is D:
<h3>In order to demonstrate the interference of light waves, the light source emits rays of light, which <u>diffract</u> towards the double slit.</h3>
Explanation:
A centripetal force (from Latin centrum, "center" and petere, "to seek") is a force that makes a body follow a curved path. (not sure but hope this helps )