Answer:
Explanation:
Particles of a solid are closely packed, and when a solid is hit to produce a sound the kinetic energy present in the solid will cause the particles to vibrate vigorously in the intermolecular spaces in the solid, whereas the paticles of liquids and gases are rather further apart therefore having large intermolecular spaces between particles.
Answer: A
Explanation: the lower the time, the faster you complete the race ( i also had this question before)
Answer:
Magnetic dipole moment is 0.0683 J/T.
Explanation:
It is given that,
Length of the rod, l = 7.3 cm = 0.073 m
Diameter of the cylinder, d = 1.5 cm = 0.015 m
Magnetization, 
The dipole moment per unit volume is called the magnetization of a magnet. Mathematically, it is given by :


Where
r is the radius of rod, r = 0.0075 m


So, its magnetic dipole moment is 0.0683 J/T. Hence, this is the required solution.
Answer:
Now you know gravity is a major force in the universe. It keeps us from floating away, controls the ocean's tides, guides plant growth, keeps Earth and other planets in orbit.
Explanation:
Answer:
The time taken is 
Explanation:
From the question we are told that
The length of the speed ramp is 
The speed of the speed ramp is 
The time taken to cover the distance is 
The walking speed( when not on the speed ramp) required to cover the 104m is mathematically represented as

Substituting values


The speed required to cover the 104m distance when on a speed speed ramp is mathematically represented as

substituting values


Now the time taken to travel the 104m distance when walking on the speed ramp is mathematically evaluated as


