Answer:
Acceleration= 1,59 (meters/(second^2))
Direction= NE; 65,22° above the east direction.
Explanation:
Resulting force= ( ((180N)^2) + ((390N)^2) ) ^ (1/2) = 429,53 N
Angle obove the east direction= ((cos) ^ (-1)) (180N / 429,53 N) = 65,22°
Acceleration= Resulting force / mass = (429,53 N) / (270 kg) =
= (429,53 kg × (meters/(second^2))) / (270kg) = 1,59 (meters/(second^2))
Answer: it is C
The thermistor
Explanation:
Thermistors (temperature-sensitive, or thermal, resistors) are used as temperature-measuring devices and in electrical circuits to compensate for temperature variations of other components. They are also used to measure radio-frequency power and radiant power, such as infrared and visible light.
To measure the intensity of the electromagnetic wave after knowing the frequency, we can calculate it by using fast fourier transformations (FFT).
Answer:
Mass: the quantity of matter which a body contains, as measured by its acceleration under a given force or by the force exerted on it by a gravitational field.
Example: a person or object may be weightless on the moon because of the lack of gravity, but that same person or object maintains the same mass regardless of location. Knowledge of mass is crucial in science.
frequency fapproach is heard by a passenger = 302.05 Hz
frequency frecede is heard by a passenger = 228.37433 Hz
Given :
speed of train to the ground = 30.0 m/s
frequency emitted by the train whistle = 262 Hz
speed of sound in air = 344 m/s
To Find :
(A) frequency fapproach (B) frequency frecede
Solution :
The frequency of approach is given by
f' = f <u>v + v(relative)</u>
v - v(air)
= 262x <u>344 + 18</u>
344 - 30
f' = 302.05 Hz
The frequency of approach is 302.05 Hz
The frequency of recede is given by
f' = f <u>v - v(relative)</u>
v + v(air)
= 262 x <u>344 - 18</u>
344 + 30
The frequency of recede is 228.37433 Hz
Learn more about Frequency here:
brainly.com/question/254161
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