Answer:
Object A has the greater volume by 1.6 cm³.
Explanation:
Density = mass / volume
Solving for volume:
Volume = mass / density
For object A:
V = 12 g / (3 g/cm³)
V = 4 cm³
For object B:
V = 12 g / (5 g/cm³)
V = 2.4 cm³
Object A has the greater volume by 1.6 cm³.
Answer:
(a). The impedance of the air conditioner is 11.11 ohm.
(b). The average rate of energy delivery is
Explanation:
Given that,
Voltage = 120 V
Resistance = 11.0 ohm
Inductive reactance = 1.59 ohm
(a). We need to calculate the impedance of the air conditioner
Using formula of impedance
Put the value into the formula
(b). We need to calculate the average rate of energy delivery
Using formula of power
Where, I=Current
R = resistance
Put the value into the formula
Hence, (a). The impedance of the air conditioner is 11.11 ohm.
(b). The average rate of energy delivery is
Answer: a) 24.2 rad/s² b) 6.95 rad/s
Explanation:
So the cylinder's moment of inertia is , where M is the mass of the cylinder and R is its radius.
The problem you have here is that the axle is modifying it, so we use the parallel axis theorem:
Therefore
where D is the distance from the center of mass to the axis which is a radius R
Next the Momentum with respect to the center of mass of the cylinder is
because there are no other forces rather than the cylinder's weight, now kg*m^2
a ) replace and find
b) we start by assuming that the energy is conserved because the cylinder is rolling without sliding:
so the potential energy is given by
now you have that the same amount is going to be equal to the kinetic rotational energy of the cylinder so
Answer:
λ = 649 nm
Explanation:
given,
frequency,f = 4.62 x 10¹⁴ Hz
speed of light,c = 3 x 10⁸ m/s
we know,
c = f λ
λ = 6.4935 x 10⁻⁷ m
λ = 649 x 10⁻⁹ m
λ = 649 nm
the wavelength of this light is equal to 649 nm
In a place in the cosmos from
all gravitational and frictional influences, when you throw a rock, the rock
will just float. If the rock is far from any object in space, it will not be
attracted to it due to gravitational attraction. This is because in space,
there is an absence of gravity.