Answer:
4500 N
Explanation:
F = ma
= 1500 kg * 3 m/s^2 = 4500 N
edited to correct units !
<h2>
Answer:It is not affected by the change in media.</h2>
Explanation:
Transverse waves are those waves where the medium particles vibrate perpendicular to the direction of propagation.
Transverse waves do not require any medium.
They travel with same speed in any medium.
Electromagnetic waves are transverse waves where the medium particles vibrate perpendicular to the direction of propagation.
So,their speed is same in any medium.
Answer:
Plane's initial speed: 14![\frac{m}{s}](https://tex.z-dn.net/?f=%5Cfrac%7Bm%7D%7Bs%7D)
Plane's acceleration: -1 ![\frac{m}{s^{2} }](https://tex.z-dn.net/?f=%5Cfrac%7Bm%7D%7Bs%5E%7B2%7D%20%7D)
Explanation:
average velocity =![\frac{V_{0} +V_f }{2}](https://tex.z-dn.net/?f=%5Cfrac%7BV_%7B0%7D%20%2BV_f%20%7D%7B2%7D)
V0=?
Vf= 0 m/s (rest)
t=7 s
Isolating V0
V0=2a-Vf = 2*(7) - 0= 14![\frac{m}{s}](https://tex.z-dn.net/?f=%5Cfrac%7Bm%7D%7Bs%7D)
Otherwise;
![a= \frac{V_f-V_0}{t} = \frac{0\frac{m}{s}-7\frac{m}{s} }{7s} = -1 \frac{m}{s^2}](https://tex.z-dn.net/?f=a%3D%20%5Cfrac%7BV_f-V_0%7D%7Bt%7D%20%3D%20%5Cfrac%7B0%5Cfrac%7Bm%7D%7Bs%7D-7%5Cfrac%7Bm%7D%7Bs%7D%20%20%7D%7B7s%7D%20%3D%20%3Cstrong%3E-1%20%5Cfrac%7Bm%7D%7Bs%5E2%7D)
38 = 300
60 = ?
300 × 60 ÷ 38
1800 ÷ 38 = 47.368
The answer is 47.4 m per hour
Answer:
Option A
Explanation:
The correct answer is Option A.
At room temperature, the resistance is equal to 100 ohms.
When the temperature is reduced to 77 K from room temperature, change in the resistance is very less.
The temperature coefficient of the resistivity of most of the metal is small for the metals which are approximately equal 0.01 /K.
hence, Change is only slightly.