Rewrite the amounts as improper fractions:
9 2/3 = 29/3
3 7/8 = 31/8
Rewrite both fractions with a common denominator
29/3 = 232/24
31/8 = 93/24
Now subtract: 232/24 - 93/24 = 139/24
Rewrite as a proper fraction: 5 19/24
Answer 5 19/24
Answer:
15 m/s or 1500 cm/s
Explanation:
Given that
Speed of the shoulder, v(h) = 75 cm/s = 0.75 m/s
Distance moved during the hook, d(h) = 5 cm = 0.05 m
Distance moved by the fist, d(f) = 100 cm = 1 m
Average speed of the fist during the hook, v(f) = ? cm/s = m/s
This can be solved by a very simple relation.
d(f) / d(h) = v(f) / v(h)
v(f) = [d(f) * v(h)] / d(h)
v(f) = (1 * 0.75) / 0.05
v(f) = 0.75 / 0.05
v(f) = 15 m/s
Therefore, the average speed of the fist during the hook is 15 m/s or 1500 cm/s
Answer:
Image is virtual and formed on the same side as the object, 19.29 cm from the lens.
The height of the image is 0.40509 cm
Image is upright as the magnification is positive and smaller than the object.
Explanation:
u = Object distance = 100 cm
v = Image distance
f = Focal length = -23.9 cm (concave lens)
= Object height = 2.1 cm
Lens Equation
Image is virtual and formed on the same side as the object, 19.29 cm from the lens.
Magnification
The height of the image is 0.40509 cm
Image is upright as the magnification is positive and smaller than the object.
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.
Answer:
Gemini
Explanation:
Zodiac Constellation or Sun sign is the constellation in which the Sun resides on the date of birth of a person. Throughout the year the Sun crosses across 12 constellations thus there are 12 Sun-signs. Though astronomically the Sun crosses across 13 constellations so there should be 13 zodiacs but most of the astrologers do not accept this. On the date of June 20, the Sagittarius which is a summer constellation and a zodiac can be seen high up in the sky in the night time. At this time the Sun will be in a constellation which is almost opposite to Sagittarius in the celestial sphere. That constellation is Gemini. Thus for a person born on 20 June, zodiac will be Gemini.
Answer:
The S wave arrives 6 sec after the P wave.
Explanation:
Given that,
Distance of P = 45 km
Speed of p = 5000 m/s
Speed of S = 3000 m/s
We need to calculate the time by the P wave
Using formula of time
Where, D = distance
v = speed
t = time
Put the value in to the formula
Now, time for s wave
The required time is
Hence, The S wave arrives 6 sec after the P wave.
Answer:
a) The total time of the trip is 4.05 h.
b) The average speed of the car is 12.35 mi/h.
c) The total time of the trip is 1.69 h.
Explanation:
Hi there!
a) The equation of traveled distance for a car traveling at constant speed is the following:
x= v · t
Where:
x = traveled distance.
v = velocity.
t = time.
Solving the equation for t, we can find the time it takes to travel a given distance "x" at a velocity "v":
x/v = t
So, the time it takes the car to travel the first half of the distance will be:
t1 = 25.0 mi / 7.00 mi/h
And for the second half of the distance:
t2= 25.0 mi / 52.00 mi / h
The total time will be:
total time = t1 + t2 = 25.0 mi / 7.00 mi/h + 25.0 mi / 52.00 mi / h
total time = 4.05 h
The total time of the trip is 4.05 h.
b) The average speed (a.s) is calculated as the traveled distance (d) divided by the time it takes to travel that distance (t). In this case, the traveled distance is 50 mi and the time is 4.05 h. Then:
a.s = d/t
a.s = 50 mi / 4.05 h
a.s = 12.35 mi/h
The average speed of the car is 12.35 mi/h
c) Let's write the equations of traveled distance for both halves of the trip:
For the first half, you traveled a distance d1 in a time t1 at 7.00 mph:
7.00 mi/h = d1/t1
Solving for d1:
7.00 mi/h · t1 = d1
For the second half, you traveled a distance d2 in a time t2 at 52.00 mph.
52.00 mi/h = d2/t2
52.00 mi/h · t2 = d2
We know that d1 + d2 = 50 mi and that t1 and t2 are equal to t/2 where t is the total time:
d1 + d2 = 50 mi
52.00 mi/h · t/2 + 7.00 mi/h · t/2 = 50 mi
Solving for t:
29.5 mi/h · t = 50 mi
t = 50 mi / 29.5 mi/h
t = 1.69 h
The total time of the trip is 1.69 h.