The answer is C. nebular are star nurseries. When the massive gas being collapsing in its own weight. Local areas of gas begin to coalesce under gravity. Due to enormous pressure, nuclear fusion begins and a protostar is formed. The protostar grows into the sun as more hydrogen fuses at the core. The planetesimal materials at the edges of the protostellar discs coalesce to form planets that orbit the star.
Answer:
0.289
Explanation:
Since the body is in equilibrium ( no net movement), then the total upward force must equal the total downward force and also total forward force must equal total backward force
Tension in the rope inclined at 30⁰ to the vertical hhas vertical and horizontal components
vertical component = Tcos 30⁰ and horizontal component = T sin30⁰
T cos 30⁰ = the downward force = mg where m is the mass of 5kg and g is 9.8 m/s² acceleration due to gravity
T cos 30⁰ = 49
T in the inclined rope to the vertical = 49 / cos 30⁰ = 56.58 N
Horizontal component of the tension in the rope = T sin30⁰ = 56.58 sin 30⁰ = 28.29 N
since the 10kg was not moving the frictional force impeding the movement = the horizontal component of the T along the positive x axis since the frictional force will act along the negative x axis
Fr = 28.29 N
coefficient of static friction = Fr / normal (mg) = 28.29 / (10 × 9.8) = 0.289
Electric Field Strength E = Force F/ Charge q
E = F/q
Force , F = E*q
But charge on an electron q = 1.6 * 10⁻¹⁹ C
E = 3 * 10³ N/C from the question.
Force F = 3* 10³ * 1.6 * 10⁻¹⁹
F = 4.8 * 10⁻¹⁶ N.
Electrostatic force F = 4.8 * 10⁻¹⁶ N
Answer:
0.796 degree
Explanation:
We are given that
Wavelength=


We have .to find the angle of the third dark interference minimum=3

Using the formula




Hence, the angle of the third dark interference minimum=0.796 degree
Answer:
4.0 Kg
Explanation:
From the question given above, the following data were obtained:
Velocity (v) = 48 m/s
Kinetic energy (KE) = 4632 J
Mass (m) =?
Kinetic energy can be defined as the energy possess by a moving object. Mathematically, it is expressed as:
KE = ½mv²
Where
KE => kinetic energy
m => mass of object
v => velocity
With the above formula, we can obtain the mass of the object as follow:
Velocity (v) = 48 m/s
Kinetic energy (KE) = 4632 J
Mass (m) =?
KE = ½mv²
4632 = ½ × m × 48²
4632 = ½ × m × 2304
4632 = m × 1152
Divide both side by 1152
m = 4632 / 1152
m = 4.0 Kg
Therefore, the mass of the object is 4.0 Kg