The escape velocity from the surface of the planet X is 2,249.2 m/s.
<h3>Escape velocity of planet X</h3>
where;
- M is mass of the planet
- r is radius of the planet
- G is universal gravitation constant
Thus, the escape velocity from the surface of the planet X is 2,249.2 m/s.
Learn more about escape velocity here: brainly.com/question/13726115
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<span>Since the wheel start from rest. angular acceleration,
θ=1/2αt²
14=1/2α x 8.7²
α= 0.3699 rad/s²
moment of inertia of loop= mr²= 4.1x0.37=1.517 kgm²
torque=T= lα
T= 0.5611Nm= 0.56Nm to significant figure
Disc
moment of inertia of disc= 1/2mr²
Required torque value= 0.28Nm
So,
I= 1/2X 4.1X 0.37²= 0.280 Kgm²
T= Iα = 0.280 X 0.3699= 0.10 to two significant figure</span>
Vf = 0 m/s
<span>t = 10 s </span>
<span>a = ? </span>
<span>a = Vf - Vi /t </span>
<span>a = -2m/s^2 </span>
<span>"a" is decelration
i hope this helps :)</span>
Answer:
30000 J = 30 kJ
Explanation:
Kinetic energy is the energy possessed by a moving object solely due to its motion.
You can get the K.E. of an object using the equation,
K.E. =
So you get,
K.E. =
= 30000 J = 30 kJ
Answer: Microwaves
Explanation:
RADAR stands for radio detection and ranging. Radio waves range from 300 GHz to 30 Hz. Modern radar uses higher frequency of waves for detection. These waves are microwaves (300 MHz-300 GHz). Microwaves are types of radio waves and are used in the radar detection.
The electromagnetic wave which has highest frequency is gamma wave but it is not used for radar detection.
Hence, the correct answer is microwaves are the type pf radio waves which have the highest frequency and are used in radar detection.