Answer:
Q= 231.88 W/m²
Explanation:
Given that
L= 20 cm
K= 2.79 W/m·K
T₁=50°C
T₂= 22°C
h=15 W/m₂·K
The total thermal resistance
Now by putting the values
R= 0.138 K/W ( for heat flux A= 1 m²)
Heat flux Q= ΔT/R
Q= (50-22)/0.138 = 32/0.138 W
Q= 231.88 W/m²
Answer:
Explanation:
Given,
mass of the bullet, m = 0.0233 Kg
Mass of the block, M = 2.41 Kg
horizontal spring constant, k = 845 N/m
Amplitude of oscillation, A = 0.196 m
Using conservation of energy when the bullet is embedded
PE = KE
Now using conservation of momentum to calculate the initial velocity of bullet
Well they typically repeal on another.
Hope it helps. :)
The speed of the particle when it enters the magnetic-field region is 120,000 m/s.
<h3>
Speed of the particle</h3>
Magnetic force on the particle is given as;
F = qvB
where;
- q is magnitude of the charge
- v is speed of the particle
- B is magnetic field strength
From Newton's second law, force on an object is given as;
F = ma
where;
- m is mass of the particle
- a is acceleration
ma = qvB
v = ma/qB
v = (3 x 10⁻² x 12)/(3 x 10⁻⁶ x 1)
v = 120,000 m/s
Thus, the speed of the particle when it enters the magnetic-field region is 120,000 m/s.
Learn more about speed here: brainly.com/question/6504879
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Explanation:
Newton has given three laws. The laws of motion are as follows :
- Newton's first law
- Newton's second law
- Newton's third law
The first law of Newton states that an object at rest will remain at rest and an object at motion will remain in motion until and unless an unbalanced force acts on it. Hence, this is the required solution.