Answer:
1. Elastic collision
2. Inelastic collision
Explanation:
Elastic collision: collision is said to be elastic if total kinetic energy is not conserved and if there is a rebound after collision
the collision is described by the equation bellow
Inelastic collision: this type of collision occurs when the total kinetic energy of a body is conserved or when the bodies sticks together and move with a common velocity
the collision is described by the equation bellow
Answer:
B is the best answer for the question
Answer:
Explanation:
Tides occur in the ocean but nit in lakes because an ocean is a free flowing body of water that can travel a large area of the globe while a lake or pond only covers a small area of the earth so it is not affected by gravity as violently and in turn, prevents the formation of tides.
Answer:
3.117 m
Explanation:
Given that:
the distance of separation between speaker A and speaker B (L) = 6.69 m
Frequency (F) = 750 -Hz tone
Velocity of speed of sound = 343 m/s
The distance from Speaker A to the first point (L₁) on the line can be calculated by using the formula:
where A = 
we have:
∴ the distance from speaker A to the first point on the line between the speakers where constructive interference occurs = 3.117 m
Answer:
τ = 11.25 Nm
Explanation:
Given,
Mass of wrench, m = 1.10 Kg
Force on the wrench, F = 150 N
position of force, r = 15 cm = 0.15 m
angle of nut = 30°
We know,
torque = Force x distance
F = 150 sin 30°
F = 75 N
τ = 75 x r
τ = 75 x 0.15
τ = 11.25 Nm
Torque at the center of the nut is equal to 11.25 N.
