man wearing a bullet-proof vest stands on roller skates. The total mass is 80 kg. A bullet of mass 20 g is fired at 400 m/s. It is stopped by the vest and falls to the ground. What is then the velocity of the man?
Anonymous Quiz
34%
1m/s
31%
0.1m/s
25%
0.01m/s
10%
0m/s
शक्तिमान से मैंने क्या सीखा 🔥Study Motivation 📚For Students | Best Study Motivational line in Hindi
https://youtu.be/26raN1JLRQ8
https://youtu.be/26raN1JLRQ8
YouTube
शक्तिमान से मैंने क्या सीखा 🔥Study Motivation 📚For Students | Best Study Motivational line in Hindi
शक्तिमान से मैंने क्या सीखा 🔥Study Motivation 📚For Students | Best Study Motivational line in Hindi
---------------------------------------------------------------
Join our telegram channel now
Class 7 & 8 - https://t.me/shubhamjhaclass78
Class 9 - http…
---------------------------------------------------------------
Join our telegram channel now
Class 7 & 8 - https://t.me/shubhamjhaclass78
Class 9 - http…
Zig zag movement of the solute particle in solution is known as
Anonymous Quiz
18%
Linear motion
20%
Circular motion
41%
Browiman motion
22%
Curverd motion
A gas which obey the gas laws is known as
Anonymous Quiz
37%
An ideal gas
20%
A heavier gas
27%
A lighter gas
16%
A real gas
What the term used to describe the phase change as a liquid become a solid
Anonymous Quiz
16%
Evaporation
33%
Condensation
48%
Frezzing
4%
None
The quantity of matter present in an object is called its
Anonymous Quiz
13%
Weight
16%
Gram
56%
Mass
15%
Density
Out of the following which is the denset state of matter
Anonymous Quiz
36%
Solid
17%
Liquid
37%
Plasmas
11%
Gas
उठो, मेहनत करो..🔥 Best Powerful Study Motivational Line 📝 For Students || Motivational video
https://youtu.be/Oyj9MQ3tFJ8
https://youtu.be/Oyj9MQ3tFJ8
Which isotope is used in the nuclear power plants to generate electricity?
Anonymous Quiz
44%
Uranium 235
24%
Iodine 131
15%
Cobalt21
18%
Uranium 238
What was the source of alpha particles in Rutherford scattering experiment?
Anonymous Quiz
33%
Hydrogen nucleus
27%
Argon nucleus
33%
Helium neculeus
8%
None
❤1
Which of the following elements does not exhibit the electrovalencey?
Anonymous Quiz
21%
Sodium
30%
Calcium
37%
Carbon
12%
Chlorine
Which of the two will be chemically more reactive, Sulphur(S) with atomic number 16 or Chlorine (Cl) with atomic number 17?
Anonymous Quiz
30%
Chlorine
33%
Sulphur
30%
Both are reactive
7%
Can't say
What property of an element determines its chemical behaviour?
Anonymous Quiz
21%
Size of element
50%
Valency of element
22%
Molar mass of element
7%
None
When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20 s, then the retardation will be:
Anonymous Quiz
26%
2m/s
39%
-2m/s
22%
0.5m/s
12%
-0.5m/s