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
Sauron [17]
4 years ago
5

In the given arrangement, the normal force applied by block on the ground is​

Physics
1 answer:
barxatty [35]4 years ago
7 0

Answer:

The normal force applied by block on the ground is​ (mg - F cosФ)

Explanation:

<em>Lets explain how to solve the problem</em>

At first you must distribute the force F into two components

<em>Vertical</em> component which is <em>F cosФ</em>

<em>Horizontal</em> component which is <em>F sinФ</em>

The block is in equilibrium, that means sum of forces acting on the

block is zero

So the upward forces equal the downward forces

Normal reaction force R applied by block on the ground and the

vertical component of F both are upward forces

The weight of the block is downward force

The normal reaction force R plus the vertical component of F is

equal to the weight

<em>R + F cosФ = W</em>

W = mg, where g is acceleration of gravity and m is the mass of

the block

<em>R + F cosФ = mg</em>

Subtract F cosФ from both sides

<em>R = mg - F cosФ</em>

<em></em>

The normal force applied by block on the ground is​ (mg - F cosФ)

You might be interested in
Read this statement: Biotechnology uses primary clarifiers for biological nutrient removal.
olga nikolaevna [1]

Primary clarifiers removing biological nutrients is not true. Primary clarifiers

involves the use of processes such as sedimentation in order to remove

particles floating or other inorganic solids from the waste water.

Biological nutrients such as nitrogen and  phosphorus are found in waste

water and removal of these important nutrients for other uses is a part of

waste water management.

The secondary clarifiers are the ones responsible for the removal of

biological nutrients in the waste water through biofiltration etc.

Read more on brainly.com/question/25085634

6 0
2 years ago
Read 2 more answers
A fan rotating with an initial angular velocity of 1000 rev/min is switched off. In 2 seconds, the angular velocity decreases to
Vladimir [108]

The average angular acceleration of the fan is

\alpha_{\rm avg}=\dfrac{\Delta\omega}{\Delta t}=\dfrac{200\frac{\rm rev}{\rm min}-1000\frac{\rm rev}{\rm min}}{2\,\rm s}=-6.67\dfrac{\rm rev}{\mathrm s^2}

The number of revolutions after time t is given by

\theta=\omega_0t+\dfrac{\alpha}2t^2

Acceleration is assumed to be constant, so \alpha=\alpha_{\rm avg} and over the 2 second interval we have

\theta=\left(1000\dfrac{\rm rev}{\rm min}\right)(2\mathrm s)+\dfrac{\alpha_{\rm avg}}2(2\,\mathrm s)^2=20\,\mathrm{rev}

so the answer is A.

5 0
3 years ago
Determine the momentum of a 6 kg object moving at 5 m.s-1 to the right
SCORPION-xisa [38]

Answer:

P = 6*5 = 30 [kg*m/s]

Explanation:

in order to solve this problem, we must remember that linear momentum is defined as the product of mass by Velocity. This way you can calculate the momentum using the following equation.

P = m*v

where:

P = lineal momentum [kg*m/s]

m = mass = 6 [kg]

v = velocity = 5 [m/s]

P = m*v

P = 6*5 = 30 [kg*m/s]

5 0
3 years ago
An office worker uses an immersion heater to warm 237 g of water in a light, covered, insulated cup from 20°C to 100°C in 6.00 m
Serhud [2]

Answer:

(a) 220.46 Watt

Explanation:

m = 237 g

T1 = 20 degree C, T2 = 100 degree c , t = 6 minutes = 6 x 60 = 360 seconds

V = 120 V, c = 4186 J/kg C

(a)

Heat required to raise the temperature = m x c x (T2 - T1)

H = 0.237 x 4186 x (100 - 20)

H = 79366.56 Joule

Power = Heat / time = 79366.56 / 360 = 220.46 Watt

6 0
3 years ago
In science what is the requirement of doing work?
Svetradugi [14.3K]
Do most if not all of it
3 0
3 years ago
Other questions:
  • Light waves...
    15·1 answer
  • About 0.1 eV is required to break a "hydrogen bond" in a protein molecule. Calculate the minimum frequency and maximum wavelengt
    13·1 answer
  • A monkey that has a white tail (dominant) could have the genotype Ww. True False
    13·2 answers
  • Based on the graph what kind of relationship exists between the change in temperature of the water in the gravitational potentia
    10·2 answers
  • Consider and mass of a material​
    15·1 answer
  • A child is perched perilously above a 150m ravine. The child has a mass of 45kg. How much
    13·1 answer
  • To what extent are disorders the product of a particular environment, and to what extent
    8·1 answer
  • Pleaseeee help I will mark brainless I don’t have long to complete this please help please
    10·1 answer
  • Ronaldo runs across a soccer field, moving 10 meters north, then 8 meters west, then 4 meters south. His
    7·1 answer
  • The force on a dropped apple hitting the ground depends upon
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!