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3 years ago

15

The downward sliding characteristic of ridge-push is the result of

1 answer:

sertanlavr [38]3 years ago

7 0

The downward sliding characteristic of ridge-push is the result of <span>Gravity</span>

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Two blocks with masses 1 and 2 are connected by a massless string that passes over a massless pulley as shown. 1 has a mass of 2

Bess [88]

Answer:

The acceleration of $M_2$ is $a = 0.7156 m/s^2$

Explanation:

From the question we are told that

The mass of first block is $M_1 = 2.25 \ kg$

The angle of inclination of first block is $\theta _1 = 43.5^o$

The coefficient of kinetic friction of the first block is $\mu_1 = 0.205$

The mass of the second block is $M_2 = 5.45 \ kg$

The angle of inclination of the second block is $\theta _2 = 32.5^o$

The coefficient of kinetic friction of the second block is $\mu _2 = 0.105$

The acceleration of $M_1 \ and\ M_2$ are same

The force acting on the mass $M_1$ is mathematically represented as

$F_1 = T - M_1gsin \theta_1 - \mu_1 M_1 g cos\theta_1$

=> $M_1 a = T - M_1gsin \theta_1 - \mu_1 M_1 g cos\theta_1$

Where T is the tension on the rope

The force acting on the mass $M_2$ is mathematically represented as

$F_2 = M_2gsin \theta_2 - T -\mu_2 M_2 g cos\theta_2$

$M_2 a = M_2gsin \theta_2 - T -\mu_2 M_2 g cos\theta_2$

At equilibrium

$F_1 = F_2$

So

$T - M_1gsin \theta_1 - \mu_1 M_1 g cos\theta_1 =M_2gsin \theta_2 - T -\mu_2 M_2 g cos\theta_2$

making a the subject of the formula

$a = \frac{M_2 g sin \theta_2 - M_1 g sin \theta_1 - \mu_1 M_1g cos \theta - \mu_2 M_2 g cos \theta_2 }{M_1 +M_2}$

substituting values $a = \frac{(5.45) (9.8) sin (32.5) - (2.25) (9.8) sin (43.5) - (0.205)*(2.25) *9.8cos (43.5) - (0.105)*(5.45) *(9.8) cos(32.5) }{2.25 +5.45}$

=> $a = 0.7156 m/s^2$

3 0

4 years ago

Two negative charges are both -3.0C push each other apart with a force of 19.2N. How far apart are the two charges?

Lilit [14]

06758 m

Explanation:

it is correct because that is what

5 0

3 years ago

In the livingroom of your house you would like to run a 300 W stereo, a 30 W computer, a 960 W laser light projector, and two 12

choli [55]

Answer:

12.75 A

Explanation:

The total power is 300 + 30 + 960 + 2 × 120 = 1530 W

Electrical power is given by

$P = IV$

Then

$I = \dfrac{P}{V}$

With a voltage of 120 V,

$I = \dfrac{1530}{120} = 12.75 \text{ A}$

8 0

4 years ago

Read 2 more answers

Convert 0 degrees Fahrenheit into kelvin

Ostrovityanka [42]

Answer:

0 degrees Fahrenheit is equal to 273.15 Kelvins.

Explanation:

basic formula °C + 273.15 = K. (°F − 32) × 5/9 = °C. (°F − 32) × 5/9 + 273.15 = K.

8 0

3 years ago

You obtain a spectrum of an object in space. The spectrum consists of a number of sharp, bright emission lines. Is this object a

Andreyy89

Answer:

In hot gases , the atoms keeps colliding with each other and sometimes the energy liberated during collision takes the electron to a higher level,thus, .The object is a cloud of hot gas and finally the electron returns back emitting photon

6 0

3 years ago

Read 2 more answers