Answer:
doubling the size of the tax more than doubles the deadweight loss while less than doubles the revenue generated
Explanation:
(a)
The quantity of rooms rented before tax, Q1 = 1000 rooms.
The quantity of rooms rented after the imposition of tax Q2 = 900 rooms.
Size of the tax = $10
Price paid by buyer = $108
Price received by seller = $98
Deadweight loss = 1/2 x (Q2 — Q1) x (size of the tax)
Deadweight loss = 1/2 x (1000 — 900) x ($10) = $500
Tax revenue generated = size of tax * (Q2) = $10 x (900) = $9000
b)
The quantity of rooms rented before tax, Q1 = 1000 rooms
The quantity of rooms rented after the imposition of tax, Q2 = 800 rooms Size of the tax = $20
Price paid by buyer = $116
Price received by seller = $96
Deadweight loss = 1/2 x (Q2 — Q1) x (size of the tax)
New Deadweight loss = 1/2 x (1000 — 800) x ($20) = $2000
Thus, dead weight loss quadruples post doubling the size of tax. New Tax revenue generated = size of tax x (Q2) = $20 x (800) = $16000 Thus, revenue generated less than doubles post doubling the size of tax.
How much power is needed to lift a 750 kg elephant 14.3 m in 30.0 seconds?
Given Information:
Mass of elephant = m = 750 kg
Height = h = 14.3 m
time = t = 30 seconds
Required Information:
Power needed to lift elephant = P = ?
Answer:
Power needed to lift elephant ≈ 3507 watts
Explanation:
As we know power is given by
P = PE/t
Where PE is the potential energy and t is the time
Potential energy is given by
PE = mgh
Where m is the mass of elephant, g is the gravitational acceleration and h is the height to lift the elephant.
PE = 750*9.81*14.3
PE = 105212.25 Joules
Therefore, the required power to lift the elephant is
P = PE/t
P = 105212.25/30
P ≈ 3507 watts
Answer:
Explanation:
given,
mass of the both ball = 5 Kg
length of rod = 2 L
where L = 0.55 m
angular speed = 45.6 rev/s
ω = 45.6 x 2 π
ω = 286.51 rad/s
v₁ = r₁ ω₁
v₁ =0.55 x 286.51 = 157.58 m/s
v₂ = r₂ ω₂
v₂ = 1.10 x 286.51 = 315.161 m/s
finding tension on the first half of the rod
r₁ = 0.55 r₂ = 2 x r₁ = 1.10
a speed of 50kmh than it
would at a
speed of 6okmh?
Answer:
2hr much longer
Explanation:
Given parameters
Distance = 600km
Speed 1 = 50km/h
Speed 2 = 60km/h
Unknown:
How much longer will it take to travel a distance = ?
Solution:
Speed is the distance divided by time;
Speed =
Now;
Time taken =
Time 1;
=
= 12hr
Time 2;
=
= 10hr
To find how much more time;
Time 1 will take 12hr - 10hr, 2hr much longer to travel the distance at that rate.
To solve this problem, it is necessary to apply the concepts related to the conservation of momentum, the kinematic equations for the description of linear motion and the definition of friction force since Newton's second law.
The conservation of momentum can be expressed mathematically as
Where,
= Mass of each object
= Initial Velocity of each object
= Final velocity
Replacing we have that,
With the final speed obtained we can determine the acceleration through the linear motion kinematic equations, that is to say
Since there is no initial speed, then
Finally with the acceleration found it is possible to find the friction force from the balance of Forces, like this:
Therefore the Kinetic friction coefficient is 0.7105
beryllium form?
A. An ion with a -2 charge
B. An ion with a +6 charge
C. An ion with a +2 charge
D. An ion with a -6 charge
The Beryllium (Be) has an atomic number of 4 and belongs to Group-2 elements. The Beryllium will form a divalent cation (+2). Thus, option C is correct.
In an atom, the number of electrons equals the number of protons. If the electrons are removed from the atom or the electrons are added to the atom, the atom has an excessive positive or negative charge.
This excessive of electrons or lack of electrons forms Ions. The excess of electrons has a negative charge or anions and the lack of electrons has a positive charge or cations.
Beryllium has 4 electrons. Two electrons are occupied in the valence shell of beryllium. Group 2 elements always form the positive ions or cations, to become stable ions.
The outermost shell of beryllium has two electrons. In order to form a stable ion, beryllium should lose its two electrons or gain six electrons. Beryllium belongs to the Group-2 element, it always loses two electrons and forms Be²⁺, to form a stable ion.
Hence, Beryllium forms an ion with a +2 charge. Thus, the correct option is C.
To learn more about the Cations and Anions:
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Answer:
the answer is c which is a+2 charge
Explanation:
Beryllium is in group 2A. It's nearest noble gas is Helium, which is 2 elements behind Beryllium. ThBeryllium wants to lose two electrons. When it does that, Beryllium will have a positive chargeof two, and it will be stated as B-e two plus.
Wave speed = (wavelength) x (frequency)
We know the wavelength, but we don't know the frequency. How can we find the frequency ? "Here frequency frequency."
We know the period, and frequency is just (1 / period). So . . .
Wave speed = (wavelength) / (period)
Wave speed = (2.1 meters) / (9.4 seconds)
Wave speed = (2.1 / 9.4) m/s
Wave speed = 0.223 m/s