a net force f accelerates a mass m with an acceleration a. if the same net force is applied to mass 5m, then the acceleration will be

To find the change in spring potential energy of the block-spring, we subtract the final from the initial kinetic energy of the block.

Spring potential energy is simply defined as the Potential energy stored as a result of the deformation of an elastic item, such as the stretching of a spring is referred to as elastic potential energy.

In conclusion, to find the Spring potential energy, we subtract the kinetic energy of the block at the final position from the kinetic energy of the block at the initial position.

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Answer:

63.2N

Explanation:

[tex]Solution,\\\\Mass(m)=39.5kg\\\\\\Gravity(g)=1.6m/s^{2} \\Now,\\\\Weight -on- moon=m*g=39.5*1.6m/s^{2} =63.2N[/tex]

2000 meters = 2 kilometers

1 hour = 60 minutes

60 minutes / 8 minutes = 7.5

7.5 x 2 km = 15 km per hour

Answer: speed is 15 kilometers per hour

Answer:

4.17m/s

Explanation:

8min = 480s

v = Δd/Δt

v = 2000m/480s

v = 4.166666667m/s

v = 4.17m/s

4.17m/s x 3.6 = 15.0 km/h

Hope that helps

Answer:

total energy

Explanation:

law of conservation of energy

Answer:

It can be, but no, mostly it won't be, and it will fall.

Explanation:

When you put force on a structure it will most likely fall unless, it's a big statue.

Explanation:

Since the weight hangs motionless from the spring, the weight is not in motion and is balanced from vertical components of force ( the spring force and the mg of the weight) so

[tex]f _s = mg[/tex]

where f s is the force of the spring.

Now, we can use Hooke Law

[tex]f _{s} = kx[/tex]

where k is the spring constant and x is the displacement of length the spring is stretched.

We know that mg=fs so

[tex] mg = kx[/tex]

mg=w so

[tex]w = kx[/tex]

k is 75 and x is 0.333

so

[tex]x = 75 \: \frac{n}{m} \times 0.33 \: m[/tex]

[tex]x = 24.975 \: n[/tex]

or

25 N or 24.98 N

Answer:

F

Explanation:

Newton's Third Law (Law of Action-Reaction) states:

Every action has an equal and opposite reaction and it occurs between two objects

In this scenario, the action would be the skater pushing off of the wall, therefore the reaction would be the wall pushing off of the skater since the two objects that are interacting are the wall and the skater.

Answer:

if it is a true or false, the answer is true

Explanation:

Answer:

The aeroplane flew 4200 miles for 7 hours.

600 times 7 is 4200.

If the amplitude of the wave increases by 4 times, the intensity will increase by 16 times. Option B is correct.

The intensity is directly proportional to the square of the amplitude of the wave.

[tex]I \propto A^2[/tex]

[tex]I = k \times A^2[/tex]

Where,

[tex]I[/tex]- Intensity

[tex]A[/tex] - Amplitude

[tex]k[/tex] - constant

Thus, if the amplitude of the wave increased by 4 times,

[tex]I = k \times(4A)^2\\\\I = k \times 16A^2[/tex]

Therefore, if the amplitude of the wave increases by 4 times, the intensity will increase by 16 times.

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Answer:

its b

Explanation:

Answer:

A negatively charged particle -q is placed at the center of a uniformly charged ring, where the ring has a total positive charge Q as shown in the following figure. The particle, confined to move along the x axis, is moved a small distance x along the axis ( where x << a) and released. Show that the particle oscillates in simple harmonic motion with a frequency given by,

Answer:

used in fixing iron rim with the wheel firmly

Answer:

78m

Explanation:

The gazelle has zero average acceleration because it's moving at a constant speed. Constant speed means no change in speed means zero acceleration.

The cheetah, on the other hand, changes its speed from 0 m/min to 1820 m/min in a matter of 3 seconds, so its average acceleration is

a[ave] = (1820 m/min - 0 m/min) / (3 s)

… = (1820 m/min) / (3/60 min)

… = 36,400 m/min²

… = (36,400 m) / (60 s)²

… = 91/9 m/s² ≈ 10.1 m/s²

Given what we know, we can confirm that if the moon is at the first quarter, and her answer is to be given at full moon, the Romanian count will have to wait approximately 22 days.

The lunar cycle is how long the moon takes to orbit the earth. This is approximately 27 days, however, the lunar phases take approximately 29.5 days to complete. Since the first quarter moon phase represents the moon at 25% through its cycle, we can conclude that the remaining 75% that the count will have to wait corresponds to 22 days until the full moon.

Therefore, we can confirm that if the moon is at the first quarter, and her answer is to be given at full moon, the Romanian count will have to wait approximately 22 days.

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The mass of Cart B in the cart system is : 1 kg

Given data :

mass of cart A = 0.5 kg

Making Use of  the graph attached below

we will apply the principle of energy conservation of momentum

velocity of cart A ( from 0s to 1s ) = 1.5 m/s

mass of cart A = 0.5 kg

at this point cart B is at rest

Initial momentum = 0.75 kgms ( mass * velocity )

From ( 1.2secs to 2 secs ) :

combined Velocity of Cart A and Cart B = 0.5 m/s

momentum = 0.75 kgms

Therefore combined mass of cart system

= momentum / velocity

= 0.75 / 0.5

= 1.5 kg

Therefore mass of Cart B = combined mass - mass of cart A

                                           = 1.5 - 0.5 = 1 kg

Hence we can conclude that the mass of cart B is = 1 kg

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We have that the  initial velocity   is mathematically given as

V1=86.4m/s

Question Parameters:

Generally the equation for the Conservation of momentum   is mathematically given as

M1V1=M2V2

Therefore

0.05*V1=1.2*3.6

V1=(1.2*3.6)/0.05

V1=86.4m/s

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[tex]\\ \rm\Rrightarrow PE=mgh[/tex]

[tex]\\ \rm\Rrightarrow PE=14(10)(3.4)[/tex]

[tex]\\ \rm\Rrightarrow PE=476J[/tex]

Answer:

[tex]\sqrt{3}\frac{kq^{2}}{a^{2} }[/tex]

Explanation:

none sadly

The net electric force on the charge is located at the lower right-hand corner of the triangle is [tex]Fr = \sqrt{3} \times\dfrac{q^2}{4 \times \pi \times 0 \times a^2 }[/tex].

Electric force is the attraction or repulsive interaction between any two charged things. Similar to any force, Newton's laws of motion describe how it affects the target body and how it does so. One of the many forces that affect objects is the electric force.

The given electrostatic force is:

F = k  x Q1 x Q2 / R²

here, Q1 & Q2 = charges

R = distance between charges

The force between q and q

F1 = k x q x q / a² = F

The force between q and '-2q'

F2 = k x q x 2 x q / a²  = 2 x F (towards '-2q' charge)

From the diagram given below, angle between F1 & F2 = A = 120°

So, the resultant force will be:

[tex]Fr = \sqrt(F1^2 + F2^2 + 2 \times F1 \times F2 \times cosA)\\Fr = \sqrt(F^2 + (2 \times F)^2 + 2 \timesF \times2 \timesF \timescos(120)\\Fr = \sqrt(5 \times F^2 - 2 \timesF^2)\\Fr = F \times \sqrt(3)[/tex]

Therefore, the net electric force on the charge is located at the lower right-hand corner of the triangle is [tex]Fr = \sqrt{3} \times\dfrac{q^2}{4 \times \pi \times 0 \times a^2 }[/tex].

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The question is incomplete. Your most probably complete question is given below:

The image of the triangle is attached below:

Answer:1,0.95cm

2,21.82cms

3, 2.73

Explanation:

1,Its equation is following: 1o + 1i = 1f

1i = 1f - 1o

1i = 1−11 - 125

i = -7.64 cm - the image distance from the lens. The negative sign means that the image virtuali

h = 3.1* 7.6425 = 0.95 cm - the diameter of the coin’s imageimage

2,Use the lens equation to determine the image distance: 1/25 = 1/80 + 1/Di →

Di = 36.36 cm.

The image is real and on the opposite side of the lens as compared to the object.

The distance between object and image then is: 80 + 36.36 = 116.36 cm.

3,1/V+1/U =1/F ; 1/V =1/F-1/U ;- 1/15–1/48 =16-5/ 240 = 11/240 ; V =240/11

=21.82 CMS

IMAGE MAGNIFICATION V /U =21.82/48= 0.0.4546INVERTED

6 * 0.4546=2.7276 ≈2.73

Answer:

The tennis ball is moving 6m/s.

Explanation:

displacement(s) = 0.5 m

intial velocity(u) = 4 m/s

acceleration(a) = 10 m/s²

As we know,

2as = v²-u²

or, 2 ×10 × 0.5 = v²-4²

or, 10 = v²-16

so, v² = 36

so, v (final velocity) = 6 m/s

Apply third equation of kinematics

[tex]\\ \tt\hookrightarrow v^2=u^2+2as[/tex]

[tex]\\ \tt\hookrightarrow v^2=4^2+2(10)(0.5)[/tex]

[tex]\\ \tt\hookrightarrow v^2=16+10[/tex]

[tex]\\ \tt\hookrightarrow v^2=26[/tex]

[tex]\\ \tt\hookrightarrow v\approx 5m/s[/tex]

Answer:

When the bulb receives this electrical energy, then it converts it into light and heat energy. At first, the energy transformation takes place in the battery and then the bulb. Hence, the transformation of energy in the given situation can be shown as: Chemical Energy → Electrical Energy → Light Energy + Heat Energy.

Based on the velocity of sound in water,  the depth of the water is 5550 m.

The velocity of sound in water =  1500 m/s

Time taken to receive the echo = 7.4 seconds

Distance = 1500 * 7.4

Distance = 11100 m

Since this is a to and fro distance covered

Depth of water = 11100/2

Depth of water = 5550 m

Therefore, the depth of the water is 5550 m.

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Power can be defined as the rate at which work is accomplished.

Option D is the correct answer.

The work done by an object in a given time interval is called the power of that object.

Suppose an external force F is applied to any object for the time interval T seconds. Due to this external force, the object will perform some amount of work for the time T seconds. This work W done by the object for the time interval T seconds is called the power of that object.

Power can be defined in mathematical term which is given below.

[tex]P = \dfrac {W}{T} \;\rm Watts[/tex]

Thus the power can also be defined as the work done by the object per unit time interval.

Hence we can conclude that option D is the correct answer.

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To imagine that you were chosen to fly the first space shuttle that could travel at the speed of light and write a story about the trip, it is necessary to research astronomy in more detail to generate a more consistent essay.

In science fiction films, it is common to portray stars as white, illuminated and stretched lines, demonstrating speed, but this is an unfounded reasoning, since light has no color and stars do not move at that speed.

Therefore, a trip at the speed of light would be common, the only difference would be the reduction of time when arriving at the places, as for example, according to research, a trip from Earth to Pluto at the speed of light would take about five and a half hours.

It would also not be possible to see the stars as in the movies, as their photons are not visible.

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Answer:

it is C,D

Explanation:

test proved

The average amount of precipitation in Seattle during, March. So, option D.

The average and extreme temperatures and precipitation patterns over an extended period of time at a location define the climate there.

Here,

A local, regional, or global area may be mentioned in a climate description.

Changes in the earth's climate are referred to as climate change. A variety of internal and external variables contribute to this.

Over the past few decades, the climatic shift has gained global attention. The earth's life is also impacted by these climatic shifts in a number of ways.

The city of Seattle has a moderate climate, which the most widely used categorization system places in the Mediterranean zone, however some sources place it in the oceanic zone.

It has moderate, comparatively dry summers and cool, wet winters, encompassing features of both. Because it is milder and wetter than a true Mediterranean climate but still has a dry summer, the climate is frequently referred to as a modified Mediterranean climate.

Hence,

The average amount of precipitation in Seattle during, March. So, option D.

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