Answer:
Explanation:
(a)
Applying the conservation of energy for cube,
i.e the initial kinetic energy of the body = its final potential energy
1/2mv² = mgh
h1 = v²/2g -------------------- (1)
and For cylinder,
the initial kinetic and rotational energy equals the final potential energy
1/2 mv² + 1/2 Iω² = mgh
here I = momentum of inertia of the cylinder
I = 1/2 m R²
∴ 1/2 mv² + 1/2 (1/2mR²)v²/R² = mgh
1/2 mv² + 1/4mv² = mgh
h2 = 3v²/4g -------------- (2)
From equations (1)&(2);
therefore the cylinder will go the greater distance up the incline.
(b)
h1-h2 = v²/2g - 3v²/4g
= 0.25 v²/g
the difference between the maximum distances the objects travel up the incline is 0.25*v²/g.
(c)
here we are taking into account of rotational energy.
Answer:
The speed of the electron is v = 1.01 x 10¹⁵ m/s
Explanation:
Given data,
The mass of the electron, m = 9.11 x 10⁻³¹ kg
The radius of the circle, r = 2.00 x 10⁻² m
The force acting on electron, F = 4.60 x 10⁻¹⁴ N
The speed of the electron, v = ?
The centripetal force of the electron is given by
F = mv² / r
∴ v² = Fr/m
v =√(Fr/m)
Substituting the given values in the above equation,
v =√( 4.60 x 10⁻¹⁴ x 2.00 x 10⁻² / 9.11 x 10⁻³¹ )
v = 1.01 x 10¹⁵ m/s
Hence, the speed of the electron is v = 1.01 x 10¹⁵ m/s
We don't have much to go on.
The dimensions of D depend on the dimensions of N, n, and x, and we don't know what any of those stand for.
It might help if we had ever heard of 'diffastion', but we're striking out there too.
Answer:
C is the best suited to the characteristics given in the question
Explanation:
Agricultural chemistry studies on both agriculture which deals with the production of plants and chemistry which controls the raw materials in food and drinks. Agricultural chemistry also investigates environmental changes and emphasizes the studies to explain interactions between plants and animals in nature.
Answer:
1.7531 smu/yn
Explanation:
check the attached file below for answer and explanation.