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
Harman [31]
3 years ago
12

Calculate the volume of this regular solid.

Physics
1 answer:
fenix001 [56]3 years ago
6 0

Answer:

2122.64 cm^3

Explanation:

Some data in the problem are missing.

Missing values:

Radius of the cylinder: 13 cm

Height of the cylinder: 4 cm

The volume of a cylinder is given by

V=\pi r^2 h

where

r is the radius of the base of the cylinder

h is the height of the cylinder

In this problem, we have:

r = 13 cm (radius)

h = 4 cm (height)

Therefore, the volume of the cylinder is:

V=\pi (13)^2(4)=2122.64 cm^3

You might be interested in
A piece of steel is 11.5cm long at 22C. It is heated to 1221C, close to its melting point. How long is it, in cm, at the high te
Nataly [62]

Answer:

The length at the final temperature is 11.7 cm.

Explanation:

We need to use the thermal expansion equation:

\Delta L=\alpha L_{0}\Delta T

Where:

  • L(0) is the initial length
  • ΔT is the differential temperature, final temperature minus initial temperature (T(f)-T(0))
  • ΔL is the final length minus the initial length (L(f)-L(0))
  • α is the coefficient of linear expantion of steel (12.5*10⁻⁶ 1/°C)  

So, we have:

L_{f}-L_{0}=\alpha L_{0}(T_{f}-T_{0})

L_{f}=L_{0}+\alpha L_{0}(T_{f}-T_{0})

L_{f}=0.115+(12.5*10^{-6})(0.115)(1221-22)

L_{f}=0.117\: m

Therefore, the length at the final temperature is 11.7 cm.

I hope it helps you!

7 0
3 years ago
Choose the scenario in which the sound frequency of the waves is higher.
mrs_skeptik [129]

Answer:

B) the sound source moves towards you at 100 m/sec

Explanation:

The Dopper Effect is a phenomenon that occur when there is relative motion between an observer and a source of a wave. When this situation occurs, there is an apparent shift in frequency of the wave, as observed by the observer.

The apparent frequency observed by the observer is given by

f'=\frac{v\pm v_o}{v\pm v_s}f

where

f is the original frequency of the wave

f' is the apparent frequency

v is the speed of the wave

v_o is the velocity of the observer (positive if moving towards the source of the wave, negative otherwise)

v_s is the velocity of the source (negative if moving towards from the observer, positive otherwise)

In this problem, we want to find the scenario in which the sound frequency is higher.

We see that in all 4 scenarios, the sound source is moving: this means we have to find the scenario in which the denominator of the equation is smaller.

First of all, we notice the sound source moves towards the observer, v_s is negative, so the denominator is higher: this means that the correct option must be either A or B.

Also, we notice that since v_s is negative, a value larger in magnitude will mean a smaller denominator: therefore, the correct answer will be

B) the sound source moves towards you at 100 m/sec

Since this situation will make the denominator of the formula the smallest possible.

5 0
2 years ago
HELP ASAP!!!! Which of the following is an example of a hypothesis? A) What will happen if a sugar cube in boiling water? B) I t
Maurinko [17]

Answer:

C) If an ice cube is placed into a boiling water, then it will melt in less than 2 minutes.

Explanation:

7 0
3 years ago
What is saturns most distinctive feature?
a_sh-v [17]
Its prominent ring system which is composed of primarily ice particles with smaller amounts of rocky detbris. Hope this helped!
6 0
3 years ago
How much net force is needed to accelerate a 15 kg mass at 2.8 m/s^2
Lera25 [3.4K]
Refer to the 2th Law of Newton

F = m. a

F = 15 x 2.8 = 42 N
4 0
3 years ago
Other questions:
  • The principle characteristic distinguishing marine and freshwater ecosystems is _______. a. temperature b. presence of corals c.
    15·2 answers
  • If the vertical axis and time on the horizontal axis if the speed is steadily increasing could the speef line ever become perfec
    5·1 answer
  • Why doesn’t Florida get as much earthquakes as California does
    10·2 answers
  • Please help I don't know how to answer these questions!
    12·1 answer
  • If the plane travels at 600 km/h for 2 hours, how far has it traveled?
    15·1 answer
  • Which electromagnetic wave types have frequencies higher than visible light?
    11·2 answers
  • An archer wishes to shoot an arrow at a target at eye level a distance of 50.0m away. If the initial speed imparted to the arrow
    13·1 answer
  • What is the prefix notation of 0.0000738?​
    12·2 answers
  • What is the the outermon shell with elections!
    12·1 answer
  • When 6a of ac current at 114 v flows in the primary coil of an ideal transformer, how many amps at 29 v wul flow in the secondar
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!