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Irina-Kira [14]
3 years ago
5

A box is sitting stationary on a ramp that is 42° to the horizontal. The box has a gravitational force of 112.1 N. What is the m

inimum amount of force that can be applied to the box to get the box to move?
Physics
2 answers:
ale4655 [162]3 years ago
5 0

Answer:

Answer is 80

Explanation:

I just took the tets

nordsb [41]3 years ago
4 0

Force of gravity along the inclined plane

F_x = F_g sin\theta

here we have

F_g = 112.1 N

\theta = 42 degree

now we have

F_x = (112.1 N)sin42

F_x = 75 N

so here we require 75 N force along the incline to move the box upwards

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A particle hangs from a spring and oscillates with a period of 0.2s.If the mass-spring system remained at rest, by how much woul
photoshop1234 [79]

Answer:

The distance the mass would stretch it is    x = 0.00992948

The correct option is A

Explanation:

From the question we are told that

           The period of the slit is T = 0.2s

           The acceleration due to gravity is g =9.8 m/s^2

Generally the period is mathematically represented as

                     T = 2 \pi \sqrt{\frac{m}{k} }

          Whee m is the particle and k is the spring constant

        making \frac{m}{k} the subject

                        \frac{m}{k}  = [\frac{T}{2 \pi} ]^2

The weight on the particle is related to the force stretching the spring by this mathematical relation

               W = F_s

              mg = kx

where x is the length by which the spring is stretched

          \frac{m}{k}  = \frac{x}{g}

Substituting the equation above for \frac{m}{k}

            [\frac{T}{2 \pi} ]^2 = \frac{x}{g}

making x the subject

              x = g [\frac{T}{2 \pi} ]

Substituting the value

            x = 9.8 * [\frac{0.2}{2 * 3.142} ]^2

            x = 0.00992948

6 0
3 years ago
Read 2 more answers
What is the maximum walking speed of an adult man whose legs are each 1.2 m long?
lubasha [3.4K]

The average walking speed for an adult would be around 6 m/s, and average leght of adult human legs is around 1m so the best answer of the given answers would be 7.9 m/s

4 0
3 years ago
A) A 12 kg object has a velocity of 37.5 m/s. What is its momentum?
Mkey [24]

Answer:

The answer would be 450 m kg/s

Explanation/ Explanation / Example:

Provided an object traveled 500 meters in 3 minutes , to calculate the average velocity you should take the following steps: Change minutes into seconds (so that the final result would be in meters per second). 3 minutes = 3 * 60 = 180 seconds , Divide the distance by time: velocity = 500 / 180 = 2.77 m/s .

If this doesn't help let me know!

4 0
3 years ago
3. Twelve waves pass a dock in 3.60 If the waves are traveling at 19.5 m/s , what is the wavelength of the waves?
otez555 [7]

Answer:

65m

Explanation:

Twelve waves pass a dock in 3.60 If the waves are traveling at 19.5 m/s , what is the wavelength of the waves?

Velocity of a wave is expressed as;

V = frequency × wavelength

Given

Velocity = 19.5m/s

Frequency is the number of oscillations completed in 1sec, hence

Frequency= 3.6/12

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Wavelength = vel/freq

Wavelength = 19.5/0.3

Wavelength = 65m

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Inessa05 [86]

answer look it up

Explanation:https://www.chegg.com/homework-help/questions-and-answers/takes-planet-28-years-orbit-sun-long-years-take-planet-go-way-around-sky-q29849397

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