Answer:
liquids
Explanation
Answer:
1. Carpenter
2. True
Explanation:
While a mason was working concrete into the formwork, the formwork collapses. The best person to rectify this problem is CARPENTER.
This is because it is the job of the Carpenter to design and build formwork, most especially wooden formwork. Formwork is like casing built to receive concrete and reinforcement during construction. Hence, when formwork collapses either due to stress, tension, or improper construction, it is the job of Carpenter to reconstruct the formwork or rectify the problem.
It is TRUE that when a device made in a workplace had defects. To address this issue the workshop manager should communicate directly with the workshop. However, this communication will be an instruction on what to do next, and it usually directs those responsible to take action where necessary. For example, a workshop manager communicates to a carpenter about the need to rectify a chair or table that has a defect.
Given:
At max. flow density,
(a)
→
By substituting the value,
→
(b)
The speed will be:
→
(c)
The density be:
→
Thus the responses above are correct.
Find out more information about density here:
Answer:
a) capacity of the highway section = 4006.4 veh/h
b) The speed at capacity = 25 mph
c) The density when the highway is at one-quarter of its capacity = k = 21.5 veh/mi or 299 veh/mi
Explanation:
q = 50k - 0.156k²
with q in veh/h and k in veh/mi
a) capacity of the highway section
To obtain the capacity of the highway section, we first find the k thay corresponds to the maximum q.
q = 50k - 0.156k²
At maximum flow density, (dq/dk) = 0
(dq/dt) = 50 - 0.312k = 0
k = (50/0.312) = 160.3 ≈ 160 veh/mi
q = 50k - 0.156k²
q = 50(160.3) - 0.156(160.3)²
q = 4006.4 veh/h
b) The speed at the capacity
U = (q/k) = (4006.4/160.3) = 25 mph
c) the density when the highway is at one-quarter of its capacity?
Capacity = 4006.4
One-quarter of the capacity = 1001.6 veh/h
1001.6 = 50k - 0.156k²
0.156k² - 50k + 1001.6 = 0
Solving the quadratic equation
k = 21.5 veh/mi or 299 veh/mi
Hope this Helps!!!
Answer:
The volume required is
Explanation:
From the question we are told that
The cars mileage is v = 28.0 mi/gal
The distance is d = 142 km
Converting the distance from km to miles
Generally the volume of gasoline needed is mathematically represented as
=>
=>
Converting to Liters
=>
=>
Complete Question
An electron is accelerated by a 5.9 kV potential difference. das (sd38882) – Homework #9 – yu – (44120) 3 The charge on an electron is 1.60218 × 10−19 C and its mass is 9.10939 × 10−31 kg. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.4 cm?
Answer:
The magnetic field strength is
Explanation:
The work done by the potential difference on the electron is related to the kinetic energy of the electron by this mathematical expression
Making v the subject
Where m is the mass of electron
v is the velocity of electron
q charge on electron
is the potential difference
Substituting values
f
For the electron to move in a circular path the magnetic force[] must be equal to the centripetal force[] and this is mathematically represented as
making B the subject
r is the radius with a value = 5.4cm =
Substituting values
If f1= 300, F2= 60, and f2=260, find f1 to the nearest unit.
Answer:
F1 = 80
Explanation:
f1= f2 √ (F1/F2)
Where f1 = 300, f2 = 260 and F2 = 60
Putting in the above formula
300 = 260√(F1/60)
Dividing both sides by 260
=> 1.15 = √(F1/60)
Squaring both sides
=> 1.33 = F1/60
Multiplying both sides by 60
=> F1 = 80
Answer:
See the explaination for the details.
Explanation:
Gauss Law states that the total electric flux out of a closed surface is equal to the charge enclosed divided by the permittivity. The electric flux in an area is defined as the electric field multiplied by the area of the surface projected in a plane and perpendicular to the field.
According to the Gauss law, the total flux linked with a closed surface is 1/ε0 times the charge enclosed by the closed surface.
Please kindly check attachment for the step by step explaination of the answer.