Note: The diagram referred to in the question is attached here as a file.
Answer:
The magnitude of the magnetic field is
Explanation:
The magnetic field can be determined by the relationship:
...............(1)
Were I is the current flowing through the wires
The distance R from point 1 to m is calculated using the pythagora's theorem
Substituting R into equation (1)
Answer:
<em>Correct option: Mohammed has less kinetic energy than Autumn.</em>
Explanation:
<u>Kinetic Energy</u>
Is the energy an object has due to its motion. If the object has a mass m and travels at a speed v, then the kinetic energy K is:
The information about four students includes their mass and velocity as follows:
Autumn has a mass of m1=50 kg and a velocity (magnitude) of v1=4 m/s, thus their kinetic energy is:
Mohammed has a mass of m2=57 kg and a velocity (magnitude) of v2=3 m/s, thus their kinetic energy is:
Lexy has a mass of m3=53 kg and a velocity (magnitude) of v3=2 m/s, thus their kinetic energy is:
Chiang has a mass of m4=64 kg and a velocity (magnitude) of v4=5 m/s, thus their kinetic energy is:
Sorted from lower kinetic energy to higher:
Lexy, Mohammed, Autumn, Chiang. Thus:
Autumn has more kinetic energy than Chiang. False
Mohammed has less kinetic energy than Autumn. True
Lexy has more kinetic energy than Mohammed. False
Chiang has less kinetic energy than Lexy. False
Correct option: Mohammed has less kinetic energy than Autumn.
Answer:
30298514.82 m/s
Explanation:
M = Mass of star = 2×10³ kg
r = Radius of star = 5×10³ m
G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration
The object would be moving at a velocity of 30298514.82 m/s