An object with a mass of 14 kg accelerates at a rate of 6.2 m/s^2. Calculate
the force required to produce this acceleration.

Answer:

Primary Succession is defined as the type of ecological succession, which occurs or start from the barren, uninhabited and unoccupied areas, such as the newly formed pond, rock, dunes, etc., while such kind of succession, which occurs in the area where there was the existence of life previously but got abandoned due to natural disturbances like deforestation, natural calamities (flood, earthquake, tsunami), the field with no vegetation is known as Secondary Succession

Explanation:

Some examples of primary succession include the formation of a new ecosystem after a volcano, glacier outbursts, or a nuclear explosion. Some examples of secondary succession include succession after fire, harvesting, logging, or abandonment of land or the renewal after a disease outbreak

i hope this answer helps :)

Answer:

0.01 mm

Explanation:

The least count of the screw gauge = pitch/number of divisions on circular scale

Pitch = 1 mm and number of divisions = 100

Substituting the values of the variables into the equation, we have

least count of the screw gauge = pitch/number of divisions on circular scale =  1 mm/100 = 0.01 mm

Answer:

25m/s

Explanation:

here we use 1st equation of motion

then we find this ans

Answer:

Yes, warming up is necessary before intense exercise, work-out or sports because they help regulate temperatures of your body. Warming up also makes your muscles ready for intense physical activities and prevents muscle cramps.

Explanation:

Answer: 50.7 J

Explanation:

Given

mass of lion is  [tex]m=2.6\ kg[/tex]

The initial speed of the lion is [tex]v_1=5\ m/s[/tex]

increased speed of lion is [tex]v_2=8\ m/s[/tex]

Initially, its kinetic energy is [tex]K_1=\frac{1}{2}mv_1^2[/tex]

Final kinetic energy [tex]k_2=\frac{1}{2}mv_2^2[/tex]

work did by lion after speed up is [tex]k_2-k_1[/tex]

[tex]\Rightarrow W=\dfrac{1}{2}\times 2.6[8^2-5^2]\\\\\Rightarrow W=1.3\times [39]=50.7\ J[/tex]

Answer:

true..

Explanation:

Newton's 2nd law of motion is greater the mass of an object the more force it will take to accelerate the object

According to Newton’s second law of motion, weight depends on an object’s mass and the net force acting on the object. The given statement is true.

Force is defined as the push or pull applied to the body. Sometimes it is used to change the shape, size, and direction of the body.

The following equation help to understand the statement;

Force is defined as the product of mass and acceleration. Its unit is Newton.

F=ma

F=mg

W=mg

The weight of an item is determined by its mass and the net force exerted on it, according to Newton's second rule of motion. The provided assertion is correct.

Hence,the given statement is true.

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i think so it is frequency

Answer:

45.864N

Explanation:

Using the formula

F = nR

n is the coefficient of friction

R is the normal reaction

R = mg

F = nmg

F = 0.78 * 6 * 9.8

F = 45.864N

Hence the amount of force with which the hand pushes the box is 45.864N

Answer:

a) 17.086m

b) 0.1671 m

Explanation:

Given data: speed of water through the hose  = 1.81 m/s

through the nozzle = 18.3 m/s

We know that maximum height of an object with upward velocity v is given by,

a) H = v^2/2g

where H is the maximum height water emerges  

= 18.3^2/(2×9.8) = 17.086 m answer

b) Again,  

H = v^2/2g

= 1.81^2/(2×9.8) = 0.1671 m

Answer:

Newton's 2nd law think soo

Answer:

. A chemical reaction is the rearranging of atoms to form new substances. E=mc^ aleph

Answer:

yabarrow

Explanation:

i think thats the name

Explanation:

Consider the two-slit Interference experiment. Electromagnetic radiation passes through the two slits that are a distance 0.0287 mm apart. The path to the fourth-order bright fringe on the nearby screen forms an angle with the horizontal. What is the wavelength of the light? (1 point) O 655 nm O 570 nm O 164 nm O 409 nm

COMPANY

Explanation:

I think its a option pascal's principal

Answer:

c

Explanation:

Just took the quiz

Answer:

0.625 m/s

General Formulas and Concepts:

Unit 0

Kinematics

Explanation:

Step 1: Define

[Given] Initial speed: 15 km/h

[Given] Final speed: 60 km/h

[Given] time: 20 s

[Solve] Average speed

Step 2: Convert

Initial speed

Final speed

Step 3: Solve

We have that for the Question " constant applied force Fp of 11.0 N pushes a box with a mass=7 kg a distance x=15.0 m across a level floor. The coefficient of kinetic friction between the box and the floor is .110." it can be said that

the final velocity vf is

[tex]vf=3.83m/s[/tex]

and the applied force Fnew is

[tex]F_{new}=3.43N[/tex]

From the question we are told

A constant applied force Fp of 11.0 N pushes a box with a mass=7 kg a distance x=15.0 m across a level floor. The coefficient of kinetic friction between the box and the floor is .110. Assuming the box starts from the rest, what is the final velocity vf of the box at 15.0 m point? If there were no friction between the box and the floor, what applied force F new would give the box the same final velocity?

Generally the equation for the Force  is mathematically given as

F_p-\mu mg=ma

Therefore

11-0.110*7*9.8=7*a

a=0.49m/s^2

Using Newtons equation

v^2=u^2+2as

v^2=0+2*0.49*15

v=3.83m/s

Therefore

F=ma

F=0.49*7

F_{new}=3.43N

Therefore

the final velocity vf is

[tex]vf=3.83m/s[/tex]

and the applied force Fnew is

[tex]F_{new}=3.43N[/tex]

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Answer:

radius = 37.69 mm

Explanation:

Calculate the radius a of the spherical cavity that has this property

Frequency of emission = 10 GHz

This problem is similar to infinite spherical wall potential

first step:

Express the energy eigenvalue of the system : [tex]E_{100} =E_{Is} = \frac{9.87h^2}{2ma^2}[/tex]

First excited state energy can be expressed as : E[tex]_{IP}[/tex] = 20.19 h^2 / 2ma^2

Given that the frequency of emission (γ )   = 10 GHz

next step :

calculate the energy of emitted photon ( E ) = h γ

= 6.626 * 10^-36 * 10 * 10^9

= 6.626 * 10^-24 joules

E[tex]_{IP}[/tex]  - E[tex]_{IS}[/tex] = 6.626 * 10^-24

∴ a^2 = 1.42 * 10^-13  m^2

hence a = √ 1.42 * 10^-13 m^2   = 37.69 * 10^-6 m ≈  37.69 mm

Answer:

[tex]-8<c<8[/tex]

Explanation:

Given data:

Weight W = 16 lb

length l = 6/12 = 0.5 ft

hence, spring constant  k = W/l = 16/0.5 = 32 lb/ft

The equation of motion of spring is

[tex]mx''+cx+kx=0\\0.5x''+cx'+32x=0[/tex]

the auxiliary equation can be written as

[tex]0.5r^2+cr+32=0\\r^2+2cr+64=0[/tex]

The discriminate of equation is

[tex]D =(2c)^2+-4(1)(64)\\=4(c^2-64)[/tex]

To get the value of the damping constant,

[tex]D<0\\4(c^2-64)<0\\c>-8, c<8\\-8<c<8[/tex]

Explanation:

it has no energy when considered with respect to earth ,as it has neither height (i e potential energy) nor velocity (i.e kinetic energy).

Answer: B

G v = 60 cm/s λ = 15 cm E f = V / λ S f = 4 Hz U f = ? S f = (60 cm/s) / 15 cm 5.

Explanation:

Answer:

a = 6.25 m/s/s

d = 50 m

Explanation:

Given:

v1 (initial velocity)= 0 m/s (cz its at rest)

v2 (final velocity)= 25 m/s

t = 4s

a = ?

d = ?

to determine  acceleration

a = (v2 - v1)/ t

= (25m/s - 0m/s)/4s

= 6.25 m/s/s

to determine distance traveled

d = 1/2(v1 + v2)t

=1/2(0m/s+25m/s)(4s)

=50 m

Answer:

Answer in explanation.

Explanation:

Using Equation

[tex]v = u + at[/tex]

where v is the final velocity

u is initial velocity

a is acceleration

t is time taken

given u = 0, v = 25, t = 4,

[tex]25 = 0 + 4a \\ 4a = 25 \\ a = 6.25 \frac{m}{ {s}^{2} } [/tex]

Now, using equation

[tex]v {}^{2} = {u}^{2} + 2as[/tex]

where v and u remains the same, a = 6.25 and s is the distance,

[tex](25) {}^{2} = \: {0}^{2} + 2(6.25)s \\ 12.5s = 625 \\ s = \frac{625}{12.5} \\ s = 50m[/tex]

Answer:

A. The bus has more kinetic energy than the car.

Explanation:

As we know that

Kinetic energy is the amount of energy possessed by the body at the time when it is in motion.  

Also,

Kinetic energy = 1 ÷ 2mv²

Here m denotes the mass of the body

and v denotes the velocity of the body.

So it would be based on the mass & velocity of the body

As if the passenger bus contains more kinetic energy as compared to the car because of the big mass

Hence, the first option is correct

Answer:

Bowl will have maximum potential energy

Explanation:

It is the bowl that will have maximum potential energy.

It is because potential energy is high when both height and mass of the object is high.

Here in this case the bowl has maximum weight with maximum height except the tea cup but the potential weight of cup will not make much impact as its weight is very low.

Answer: When an earthquake occurs energy is transferred, from where the rocks break, and travels throughout the world. The bigger the quake the further from the epicentre the waves will travel. There are four types of earthquake wave generated during an earth quake

Explanation:

The intensity of a natural disaster can be determined by the amount of energy transferred due to it.

Natural disasters include calamities with atmospheric, geological, and hydrological causes (such as droughts, earthquakes, floods, hurricanes, and landslides), which can result in fatalities, property damage, and social and environmental disturbance.

Here,

Internal and external forces work together to create natural disasters. The first is internal forces that are caused by the earth's internal heat energy and result in geologic hazards including earthquakes, volcanoes, and tsunamis.

Energy is transferred during an earthquake and propagates throughout the globe from the point at which the rocks split. The waves' distance from the epicenter increases with the size of the earthquake.

During an earthquake, four different kinds of seismic waves are produced. They transfer energy out of the earthquake's epicentre.

Hence,

The intensity of a natural disaster can be determined by the amount of energy transferred due to it.

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