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
Nitella [24]
3 years ago
5

For years, the tallest tower in the United States was the Phoenix Shot Tower in Baltimore, Maryland. The shot tower was used fro

m 1828 to1892 to make lead shot for pistols and rifles and molded shot for cannons and other instruments of warfare. Molten lead was dropped from the top of the 234-foot (71.3 meter) tall tower into a vat of water. During its free fall, the lead would form a perfectly spherical droplet and solidify. Determine the time of fall and the speed of a lead shot upon hitting the water at the bottom.
Physics
1 answer:
serious [3.7K]3 years ago
3 0

Answer:

The answer to your question is:

a) t = 3.81 s

b) vf =  37.4 m/s

Explanation:

Data

height = 71.3 m = 234 feet

t = 0 m/s

vf = ?

vo = 0 m/s

Formula

h = vot + 1/2gt²

vf = vo + gt

Process

a)

               h = vot + 1/2gt²

             71.3 = 0t + 1/2(9.81)t²

             2(71.3) = 9,81t²

              t² = 2(71.3)/9.81

              t² = 14.53

              t = 3.81 s

b)

      vf = 0 + (9.81)(3.81)

      vf = 37.4 m/s

You might be interested in
A 58 g firecracker is at rest at the origin when it explodes into three pieces. The first, with mass 12 g , moves along the x ax
alexdok [17]

Answer:

Explanation:

We shall apply conservation of momentum law in vector form to solve the problem .

Initial momentum = 0

momentum of 12 g piece

= .012 x 37 i since it moves along x axis .

= .444 i

momentum of 22 g

= .022 x 34 j

= .748 j

Let momentum of third piece = p

total momentum

= p + .444 i + .748 j

so

applying conservation law of momentum

p + .444 i + .748 j  = 0

p = - .444 i -  .748 j  

magnitude of p

= √ ( .444² + .748² )

= .87 kg m /s

mass of third piece = 58 - ( 12 + 22 )

= 24 g = .024 kg

if v be its velocity

.024 v = .87

v = 36.25 m / s .

6 0
2 years ago
If two negative charges decrease 1/2 times it's original charge then the force will become how many times stronger
vovangra [49]
5! 5! 5! 5! it's 5!!!!!!!!!! Well that's what my friend told me so
8 0
3 years ago
What is the mass of an object that has a weight of 110N ?
fgiga [73]
  • Weight (W) = 110 N
  • Acceleration due to gravity (g) = 9.8 m/s^2
  • Let the mass of the object be m.
  • By using the formula, W = mg, we get,
  • 110 N = 9.8 m/s^2 × m
  • or, m = 110 N ÷ 9.8 m/s^2
  • or, m = 11.2 Kg

<u>Answer:</u>

<em><u>The </u></em><em><u>mass </u></em><em><u>of </u></em><em><u>the </u></em><em><u>object </u></em><em><u>is </u></em><em><u>1</u></em><em><u>1</u></em><em><u>.</u></em><em><u>2</u></em><em><u> </u></em><em><u>Kg.</u></em>

Hope you could get an idea from here.

Doubt clarification - use comment section.

3 0
2 years ago
HELP I'll Mark as brainliest!
Alex777 [14]

Answer: Gus sues Russell for stealing postage stamps

Explanation:

3 0
3 years ago
If two opposing forces are equal, then the net force is 0 N.<br><br> true or false?
Fofino [41]

Answer:

false

Explanation:

6 0
2 years ago
Other questions:
  •  While texting his girlfriend that he was running late for their date, Jordan rear-ended a car stopped at a red light. Since thi
    6·2 answers
  • The __________ lobe contains the area of the cortex involved in auditory processing called the primary __________ cortex.
    5·1 answer
  • A 3.5-cm radius hemisphere contains a total charge of 6.6 × 10–7
    14·1 answer
  • Consider a uniformly charged sphere of radius Rand total charge Q. The electric field Eout outsidethe sphere (r≥R) is simply tha
    15·1 answer
  • A truck is traveling due north at 50 km/hr approaching a crossroad. On a perpendicular road a police car is traveling west towar
    7·1 answer
  • PLEASE HELP ME!<br> help on this cross word puzzle PLEASE!<br> 17 POINTS FOR HELPING THANKS!
    8·2 answers
  • Practice questions, will mark brainliest!
    5·1 answer
  • 2
    15·2 answers
  • PLEASE HELP! WILL MARK BRAINLIEST!
    9·1 answer
  • Major storms get their energy from WATER VAPOR in the air. Which step of the water cycle would give energy to a storm
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!