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
Makovka662 [10]
3 years ago
6

A wooden cylinder has a density of 4 g/cm3 and a mass of 48 cm3. What is the volume of the wooden cylinder?

Physics
1 answer:
Tema [17]3 years ago
4 0

Answer:

<u>Volume</u><u> </u><u>is</u><u> </u><u>1</u><u>2</u><u> </u><u>cm³</u>

Explanation:

volume =  \frac{mass}{density}  \\

mass » 48 g

density » 4 g/cm³

volume =  \frac{48}{4}  \\  \\  = 12 \:  {cm}^{3}

You might be interested in
Which type of radio waves have the highest frequency and are used in radar detection? microwaves x-rays waves infrared waves gam
goldfiish [28.3K]

Answer: Microwaves

Explanation:

RADAR stands for radio detection and ranging.  Radio waves range from 300 GHz to 30 Hz. Modern radar uses higher frequency of waves for detection. These waves are microwaves (300 MHz-300 GHz). Microwaves are types of radio waves and are used in the radar detection.

The electromagnetic wave which has highest frequency is gamma wave but it is not used for radar detection.

Hence, the correct answer is microwaves are the type pf radio waves which have the highest frequency and are used in radar detection.

5 0
3 years ago
Read 2 more answers
A spring of negligible mass and force constant k = 430 N/m is hung vertically, and a 0.270 kg pan is suspended from its lower en
Anastaziya [24]
It’s b because a spring of negligible mass then if u multiply
8 0
3 years ago
The structure of which substances tends to exhibit the greatest hardness?
bagirrra123 [75]

The answer is C. ionic compounds, compared to another hard compound which is the covalent bond, the structure of the ionic compound is lattice or crystalline in form thus less room for imperfections on its structure compared to the latter choices.

3 0
3 years ago
to measure the static friction coefficient between a block and a vertical wall, a spring is attached to the block, is pushed on
Stolb23 [73]

Answer:

μ = mg/kx

Explanation:

Since the bock does not slip, the frictional force equals the weight of the block. So, F = mg. Now, the frictional force, F = μN where μ = coefficient of static friction and N = Normal force.

Now, the normal force equals the spring force F' = kx where k = spring constant and x = compression of spring.

N = F' = kx

So, F = μN = μkx

μkx = mg

So, μ = mg/kx

8 0
3 years ago
Determine the speed, wavelength, and frequency of light from a helium-neon laser as it travels through polystyrene. The waveleng
klemol [59]

Answer:

Speed:

2.01x10^{8}m/s

Wavelength:

4.24x10^{-7}m

Frequency:

4.74x10^{14}Hz

Explanation:

The speed of the laser as it travels through polystyrene can be determine by means of the equation of the refraction index:

n = \frac{c}{v} (1)

Where c is the speed of light and v is the speed of the laser in the medium.

Therefore, v will be isolated from equation 1

v = \frac{c}{n}

v = \frac{3x10^{8}m/s}{1.490}

v = 2.01x10^{8}m/s

Hence, the speed of the laser has a value of 2.01x10^{8}m/s

Frenquency:

Since, wavelength is the only one who depends on the media. Therefore the frequency in both medium will be the same.  

To determine the frequency it can be used the following equation

c = \nu \cdot \lambda  (2)

Where c is the speed of light, \nu is the frequency and \lambda is the wavelength

Then, \nu wil be isolated from equation 2.

\nu = \frac{c}{\lambda}  (3)

Before using equation 3 it is necessary to express \lamba in units of meters.

\lambda = 632.8nm . \frac{1m}{1x10^{9}nm} ⇒ 6.328x10^{-7}m

\nu = \frac{3x10^{8}m/s}{6.328x10^{-7}m}

\nu = 4.74x10^{14}s^{-1}

\nu = 4.74x10^{14}Hz

Hence, the frequency of the laser has a value of 4.74x10^{14}Hz

Wavelength:

To determine the wavelength it can be used:

v = \nu \cdot \lambda

\lambda = \frac{v}{\nu}

Where v is the speed of the laser through the polystyrene.

\lambda = \frac{2.01x10^{8}m/s}{4.74x10^{14}s^{-1}}

\lambda = 4.24x10^{-7}m

Hence, the wavelength of the laser has a value of 4.24x10^{-7}m

3 0
3 years ago
Other questions:
  • What could be a possible explanation why tectonic plates do not all move in the same direction
    9·1 answer
  • A car initally at rest accelerates in a straight line at 3 m/s2 what will be its speed after 2 seconds
    12·1 answer
  • Suppose a drinking straw is in a glass of water. Someone blows air across the top of the straw. The water level in the straw ___
    6·2 answers
  • A pump contains 0.5 L of air at 203 kPa . You draw back on the piston of the pump, expanding the volume until the pressure reads
    7·1 answer
  • How long would it take for a car to travel 22km if it has an average speed of 55 km/hr
    12·1 answer
  • An ice skater accelerates backwards for 5.0 seconds to a final speed of 12 m/s. If the acceleration backwards was at a rate of 1
    8·1 answer
  • suppose the pilot starting again from rest opens the throttle part.way at constant acceleration the airboat then covers a distan
    12·1 answer
  • Which quantity does not change when there is an increase in temperature?​
    12·1 answer
  • An object on the surface of the earth weighs 90 lb. At two earth radii above the surface, It will welgh:
    8·1 answer
  • A.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!