Answer:
<h2>507 J</h2>Explanation:
The kinetic energy of an object can be found by using the formula
m is the mass
v is the velocity
From the question we have
We have the final answer as
<h3>507 J</h3>Hope this helps you
150-N box is being pulled horizontally in a wagon accelerating uniformly at 3.00 m/s2. The box does not move relative to the wag
1 answer:
Answer:
the friction force on this box is closest to 45.9 N.
Explanation:
given data
Weight of the box W = 150 N
accelerating uniformly = 3.00 m/s²
coefficient of kinetic friction = 0.400
coefficient of static friction = 0.600
solution
we know box does not move relative to the wagon
we get here friction force that is express as
friction force = mass × acceleration ..............1
here mass = weight ÷ g
mass = = 15.3 kg
put value in equation 1 we get
friction force = 15.3 kg × 3
friction force = 45.9 N
So, the friction force on this box is closest to 45.9 N.
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Where,
F = Force
r = Radius
Replacing we have that,
The moment of inertia is given by 2.5kg of the weight in hand by the distance squared to the joint of the body of 24 cm, therefore
Finally, angular acceleration is a result of the expression of torque by inertia, therefore
PART B)
The work done is equivalent to the torque applied by the distance traveled by 60 °° in radians , therefore
Answer:
(a) The magnetic energy density in the field is 6.366 J/m³
(b) The energy stored in the magnetic field within the solenoid is 5 kJ
Explanation:
magnitude of magnetic field inside solenoid, B = 4 T
inner diameter of solenoid, d = 6.2 cm
inner radius of the solenoid, r = 3.1 cm = 0.031 m
length of solenoid, L = 26 cm = 0.26 m
(a) The magnetic energy density in the field is given by;
(b) The energy stored in the magnetic field within the solenoid