Answer:
165.77J
Explanation:
M₁ = 0.107kg
u₁ = 300m/s
m₂ = 3kg
u₂ = 0
v =
m₁u₁ + m₂u₂ = (m₁ + m₂)V
(0.107*300) + 0 = (0.107 + 3)V
V = 32.1 / 3.107 = 10.33m/s
kinetic energy of the system after collision =
½m1v² + ½m2v²
K.E = ½(m1 + m2)v²
K.E = ½(0.107+3) * 10.33²
K.E = 165.77J
Answer:
a. yes
Explanation:
The initial speed of the circular saw is:


Deceleration rate needed to stop the circular saw is:


The number of turns associated with such deceleration rate is:



Since the measured number of revolutions is lesser than calculated number of revolution, the circular saw meets specifications.
There are many forms of energy, but they can all be put into two categories: kinetic and potential. Kinetic energy is motion––of waves, electrons, atoms, molecules, substances, and objects. Potential energy is stored energy and the energy of position––gravitational energy
Answer:
Explanation:
electrical field strength = potential diff / distance
= ( 450 - 0 ) / 8 x 10⁻²
= 5625 V/m
b )
potential difference = electric field x distance
= 5625 x .10
= 562.5 V
Density can be calculated using the following rule:
density = mass / volume
Since the density is given as 8 gm/cm^3 and the mass is given as 600 grams, therefore, all we need to do is substitute in the equation to get the value of the volume as follows:
8 = 600 / volume
volume = 600 / 8 = 75 cm^3