1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elodia [21]
3 years ago
8

A certain part of an aircraft engine has a volume of 1.4 ft^3. (a) Find the weight of the piece when it is made of lead. (b) If

the same piece is made of aluminum, what is its weight? Determine how much weight is saved by using aluminum instead of lead.
Physics
1 answer:
nydimaria [60]3 years ago
6 0

Answer:

(a) 4400.83 N

(b) 1051.7 N

(c) 3349.13 N

Explanation:

V = 1.4 ft^3 = 0.0396 m^3

density of lead = 11.34 x 10^3 kg/m^3

density of aluminium = 2710 kg/m^3

(a) When lead is used

Weight = mass x gravity = volume x density x gravity

            = 0.0396 x 11.34 x 1000 x 9.8 = 4400.83 N

(b) when aluminium is used

Weight = mass x gravity = volume x density x gravity

           = 0.0396 x 2710 x 9.8 = 1051.7 N

(c) Difference in weight = 4400.83 - 1051.7 = 3349.13 N

You might be interested in
Which motion listed below matches the graph?
mote1985 [20]
Bro I really think it might be c
7 0
3 years ago
Read 2 more answers
In 1994, Leroy Burrell of the United States set what was then a new world record for the men’s 100 m run. He ran the 1.00  102
vovikov84 [41]

Answer:

61.33 Kg

Explanation:

From the question given above, the following data were obtained:

Distance = 1×10² m

Time = 9.5 s

Kinetic energy (KE) = 3.40×10³ J

Mass (m) =?

Next, we shall determine the velocity Leroy Burrell. This can be obtained as follow:

Distance = 1×10² m

Time = 9.5 s

Velocity =?

Velocity = Distance / time

Velocity = 1×10² / 9.5

Velocity = 10.53 m/s

Finally, we shall determine the mass of Leroy Burrell. This can be obtained as follow:

Kinetic energy (KE) = 3.40×10³ J

Velocity (v) = 10.53 m/s

Mass (m) =?

KE = ½mv²

3.40×10³ = ½ × m × 10.53²

3.40×10³ = ½ × m × 110.8809

3.40×10³ = m × 55.44045

Divide both side by 55.44045

m = 3.40×10³ / 55.44045

m = 61.33 Kg

Thus, the mass of Leroy Burrell is 61.33 Kg

5 0
3 years ago
Which are characteristics of refraction
Crazy boy [7]

Answer:

When light travels from one medium to another, the frequency of light does not change. However, the velocity and wavelength change.

Explanation:

Pls mark me as brainliest

4 0
3 years ago
Use the drop-down menus to complete each sentence.
qaws [65]

Answer:b

Explanation:

6 0
3 years ago
Ur a genius if u explain how it’s A correctly
Alinara [238K]

Answer:

Explanation:

4/1=4

3/2=1.5

2/3=0.666667

1/4=0.25

D has the least number so its D

6 0
3 years ago
Other questions:
  • The three forces acting on a hot-air balloon that is moving vertically are its weight, the force due to air resistance and the u
    5·1 answer
  • The energy of atoms and molecules in an object due to their motion is_______ energy
    9·1 answer
  • What are the three ways that a person can manipulate light?
    9·1 answer
  • Which of the following parts of a sound wave corresponds to a trough in a transverse wave?
    9·2 answers
  • The density of mercury is 13.6 g/cm3 calculate the mass of 1 cm3 of mercury
    12·1 answer
  • Carbon-14 has a half-life of 5,700 years. How long will it take for 6.25% of the Carbon-14 to be remaining?
    10·1 answer
  • When a 25-kg crate is pushed across a frictionless horizontal floor with a force of 200 N, directed 20 below the horizontal, th
    10·1 answer
  • suppose 384g of steam originally at 100C is quickly cooled to produce liquid water at 31C. How much heat must be removed from th
    13·1 answer
  • How do l calculate e<br> nergy
    9·1 answer
  • 400 Kelvin to degrees Celsius​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!