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makvit [3.9K]
3 years ago
14

1. Vertically oriented circular disks have strings wrapped around them. The other ends of the strings are attached to

Physics
1 answer:
Ymorist [56]3 years ago
5 0

Answer:

See the answers and explanation below

Explanation:

To solve this problem, we must have the full description of this problem, by doing an internet search we can find a problem with the same description and with the respective question.

<u>Description of the problem</u>

<u />

"Vertically oriented circular disks have strings wrapped around them. The other ends of the strings are attached to  hanging masses. The diameters of the disks, the masses of the disks, and the masses of the hanging masses are

given. The disks are fixed and are not free to rotate. Specific values of the variables are given in the figures. Rank these situations, from greatest to least, on the basis of the magnitude of the torque on the disks. That is, put first the situation where the disk has the greatest torque acting on it and put last the situation where the disk has the least torque acting on it."

<u>For case D</u>

<u />

T = (20/2)*800 = 8000 [g-cm]

<u>For case A</u>

<u />

T = (20/2)*500 = 5000 [g-cm]

<u>For case C</u>

<u />

T = (10/2)*500 = 2500 [g-cm]

<u>For case B</u>

<u />

T = (10/2)*200 = 1000 [g-cm]

In this way it has been organized from the largest to the smallest torque present in each of the cases.

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Which type of radiation has the lowest penetrating ability?
Ganezh [65]

The types of radiation are Alpha, Beta and gamma radiation

Alpha radiation: is a radiation of particles like He elements. It is very heavy radiation. it can be stopped by a sheet of a paper.

Beta radiation: is a radiation of particles like as the electrons, with the same mass and positive or negative charge. It can be stopped by an aluminium sheet

Gamma radiation: is an electromagnetic radiation with out really mass, moves in the speed of the light and has very high energy, high frequency and very short wavelengths. It can be stopped only by a block of  concrete, lead, or other heavy shielding.

Thus, the radiation has the lowest penetrating ability is <u>Alpha radiation (particles)</u>

7 0
4 years ago
What is the mass of an object weighing 63 N on earth
MaRussiya [10]
<u>Weight = (mass) x (acceleration of gravity)</u>

Weight = 63 N
On Earth, acceleration of gravity = 9.8 meters per second².

                       63 N = (mass) x (9.8 meters per second²)

Divide each side of the equation by (9.8 m/s²).

                       63 / 9.8 = Mass

<em>                       Mass = 6.4 kilograms</em>
4 0
4 years ago
A circuit contains a 1.5v battery and a bulb with a 3 ohms resistance, calculate the current of the circuit
alexandr1967 [171]

Answer: 0.5ampere

Explanation:V=IR

Where v=voltage

I=current and

R= resistance

Therefore, I=V/R = 1.5/3

= 0.5ampere

5 0
4 years ago
Suppose a NASCAR race car rounds one end of the Martinsville Speedway. This end of the track is a turn with a radius of approxim
Schach [20]

Complete Question

Suppose a NASCAR race car rounds one end of the Martinsville Speedway. This end of the track is a turn with a radius of approximately 57.0 m . If the track is completely flat and the race car is traveling at a constant 30.5 m/s (about 68 mph ) around the turn.

Required:

a. What is the race car's centripetal (radial) acceleration?

b. What is the force responsible for the centripetal acceleration in this case?

O normal

O gravity

O friction

O weight

Answer:

question a

       a = 16.32 \  m/s^2

question b

        correct option is option 3

Explanation:

From the question we are told that

   The radius is  r = 57.0 \ m \

    The constant speed at which the race car is travelling is v  = 30 .5 \ m/s

Generally from the question we are told that the track is completely flat so the only force pulling the car to the middle is the frictional force hence the centripetal force is due to the frictional force

    Generally the centripetal acceleration is mathematically represented as

      a = \frac{v^2}{r}

=>    a = \frac{30.5^2}{ 57}

=>    a = 16.32 \  m/s^2

6 0
3 years ago
Matching the words to the definitions <br> HELPPP
Gala2k [10]
Before i Tell you the answer think about it .
8 0
3 years ago
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