Answer:
I would say that the answer is d because if it's hot she is dehydrated
The material that the cylinder is made from is Butyl Rubber.
<h3>What is Young's modulus?</h3>
Young's modulus, or the modulus of elasticity in tension or compression, is a mechanical property that measures the tensile or compressive strength of a solid material when a force is applied to it.
<h3>Area of the cylinder</h3>
A = πr²
<h3>Young's modulus of the cylinder</h3>
Where;
When 5 kg mass is applied, the extension = 10 cm - 9.61 cm = 0.39 cm = 0.0039 m.
When the mass is 50 kg,
extension = 10 cm - 7.73 cm = 2.27 cm = 0.0227 m
The Young's modulus is between 0.001 GPa to 0.002 GPa
Thus, the material that the cylinder is made from is Butyl Rubber.
Learn more about Young's modulus here: brainly.com/question/6864866
Answer:
a) 0.81 A
b) 0.33 A , 0.48 A
c) 10 Volts , 10 volts
Explanation:
= 30 Ω
= 21 Ω
= Voltage of the battery = 10 Volts
a)
Parallel combination of resistance is given as
Ω
= Total current flowing through the circuit
Total current flowing through the circuit is given as
A
b)
In parallel, Voltage remain same.
= Potential difference across R₁ = 10 Volts
= Potential difference across R₂ = 10 Volts
Current flowing through individual resistors is given as
A
A
c)
In parallel, Voltage remain same, hence
= = 10 Volts
Answer:
The amount of Potential Energy lost in the form of Thermal Energy is equal to 41.64 MJ.
Explanation:
mass of the cart and passengers = m = 3.5*10⁴ kg
Height = h = 126.5 m
g = 9.8 ms⁻²
v = 10 ms⁻¹
At the top position the Total energy of the ride is in the form of potential energy given as:
P.E = mgh
= 3.5*10⁴*9.8*126.5
= 43389500 J
At the bottom of the drop, all the Potential Energy will be converted into K.E as the ride develops speed given as:
K.E = 0.5*m*v²
= 0.5*3.5 x 10⁴*100
= 1750000 J
The K.E is much less than the P.E energy even though all the P.E of the ride has been converted. The loss of energy is due to the formation of thermal energy which can be calculated as:
Thermal Energy lost = Total energy in the form of P.E(top) - Total energy in the form of K.E(bottom)
= 43389500 - 1750000
= 41639500 J
= 41.64 M J approx M J = mega joule = 10⁶ J
Answer:
Velocity is a vector quantity. It has both, magnitude and direction. Velocity is the rate of change in the position of a body with respect to a frame of reference. One component is the magnitude of velocity which is speed. The other one is its direction.
Explanation:
Speed is a scalar quantity.
Velocity is a vector quantity.
There are two types of quantities:
1. Scalar quantity:
A scalar quantity is a quantity which is described by its magnitude alone.
2. Vector Quantity:
A vector quantity is a quantity which is described completely by both, its magnitude and direction.