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Answer:

potential difference

= m × g × h

= ( 2 × 10 × 3 )

= 60 Joules

Answer:

PE = 60 J

Explanation:

Where:

PEg or PE = gravitational potential energy

m = mass of an object

g = acceleration due to gravity

h = height of the object

brnaliest

Answer:

Yes.

Explanation:

Assuming that the balls weigh the same, then they would have the same velocity. Velocity is the term used to describe the speed at which an object is traveling.

Answer:

0

Explanation:

Here it's given that the weight of the box is 4N and it slides across a rough table for a distance of 2m . And we are interested in finding out the work done by the weight of the block. Firstly we know that , Work done is ,

[tex]\rm\longrightarrow \pink{ Work\ = \ F.s = |F||s|cos\theta} [/tex]

where

Therefore ,

[tex]\rm\longrightarrow Work = (4N)(2m)(cos\theta) [/tex]

Here the angle between the displacement and force is 90° , and value of cos90° is 0 , therefore,

[tex]\rm\longrightarrow Work = 8N-m (0)\\[/tex]

[tex]\rm\longrightarrow \underline{\boxed{\rm\blue{Work = 0 }}}[/tex]

The work done by the weight of the box is zero. The correct answer is zero. The correct option is (E).

Given:

Weight of the box = 4.00 N (acting downward)

Distance = 2.00 m

The angle between force and displacement, θ = 90°

Using the formula for work:

Work (W) = Force × Distance × cos(θ)

Since the angle θ is 90 degrees and cos(90 degrees) = 0.

The work done by the weight of the box is:

W = Force × Distance × cos(90)

W = 4.00 × 2.00 × 0

W = 0 J

Therefore, the work done by the weight of the box is zero. The correct option is (E).

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Answer:

[tex]{ \tt{average \: speed = \frac{distance}{time} }} \\ \\ { \tt{ = \frac{(6 \times 1000) \: m}{(50 \times 60) \: s} }} \\ \\ { \tt{ = \frac{6000}{3000} }} \\ \\ = { \underline{ \tt{ \: 2 \: {ms}^{ - 1} \: }}}[/tex]

You walk from chisale to st Francis a distance of 6km/h and 50minutes,  the average speed in m/s​ will be 2m/s

The average speed of a moving object is defined as the total distance covered by it divided by the total time taken.

The S.I unit of speed is meter per second. Speed is also measured in kilometer per hour.

Average speed is a scaler quantity

Average speed is the total distance travelled by an object to the total time taken. However, average velocity is the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs. No matter how many times the speed has been changed to travel the entire distance , average speed is that constant speed value with which one can travel by and reach the same distance in same amount of time .

It can be calculated with a formula average speed = distance / time

given

distance = 6 km = 6000 m

time = 50 minutes = 50 * 60 = 3000 sec

average speed = distance / time

                          = 6000 / 3000 = 2m/s

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Answer:

Friction drag force causes objects to slow down as they move through a fluid, such as air or water. ... As an object's speed increases, the drag force from the fluid increases exponentially. • For example, when you drive at high speeds, the frictional force of air on the car increases, and fuel economy decreases.

Answer:

0.46 m. hope this helps.

Answer:

0.46 Meters

Explanation:

Explanation:

9 А

3) A 5kg object is to be given an upward

acceleration of

of 0.3 m/s by a rope pulling

straight upward on it, what must be the

tension on the

the rope ?

Answer:

b and d

Explanation:

Answer:

M = V ρ = .03 * .2*2 cm^3 * 2.75 g / cm^3 = .0033 kg     weight

W = m g = .0033 kg * 9.80 m / s^2 = .032 N

P = F / A = W / A = .032 N / .2^2 m^2 = .80 N/m^2 = .80 Pascal

Answer:

The uneven heating of Earth by the sun causes the climate to be warm and dry at the equator and cold and wet toward the poles. The angle of sunlight is different at different latitudes, which causes the climate to be warm at the equator and colder toward the poles.

Explanation:

mark brainliest

Answer:

Electrical energy and Chemical energy

Explanation:

Good luck on the quiz dawg, I'm doing the same one LOL

Based on the data provided;

The formula for calculating density is given as:

From the formula above;

mass = density × volume

also, volume = area × height

Therefore,

mass = density × area × height

Calculating for the height of the liquid:

Height, L = 90.8 / (0.86 × 6.08)

L = 17.2 cm

The pressure due to a liquid is calculated using the formula below:

where;

h is height = 17.2 cm = 0.172 m

P is density = 0.86 g/cm^3 = 860 kg/m^3

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

Pressure = 860 kg/m^3 × 0.172 m × 9.8 m/s^2

Pressure = 1449.616 N/m

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The radius of each jawbreaker is approximately 0.68 cm.

where

r = radius

Therefore,

23 g  = 32.3 cm³

0.94 g  = ?

cross multiply

volume of a single jawbreaker = 32.3 × 0.94 / 23 = 30.362 / 23 = 1.32 cm³

Therefore,

volume of each jawbreaker = 4 /3 πr³

1.32 = 4 / 3 × 3.14 × r³

r³ = 1.32 /4.18666666667

r³ = 0.31533683707

r = ∛0.31533683707

r = 0.680651651 = 0.68

Therefore, the radius of each jawbreaker is approximately 0.68 cm.

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[tex] \frac{4577}{7 \times (80 - ( - 12))} \\ \frac{4577}{7 \times92 } \\ \frac{4577}{644} \\ = 8.5g[/tex]

Explanation:

Explanation: The speed of light in a vacuum is 3⋅108 m/s . We can now convert to a more appropriate symbol, such as the nanoseconds. So, it will take light approximately 333

200,000 kilometers per secondrefractive index of 1.5).

Answer:

1014 V/m

Explanation:

C = 0.000031 F. Q = 0.000022 C, d = 0.7 mm,

V = Q/C = 0.000022/0.000031 = 0.7097 V

E = V/d = 0.7097/0.0007 = 1014 V/m

The law of conservation energy

PE₁ + KE₁ = PE₂ + KE₂

From rest ⇒ v₁ = 0 ⇒ KE₁ = 0

Input the value:

PE₁ = PE₂ + KE₂

[tex]\tt mgh_1=mgh_2+\dfrac{1}{2}mv_2^2\rightarrow divide\:m\\\\gh_1=gh_2+\dfrac{1}{2}v_2^2\\\\9.8(1.226-0.126)=\dfrac{1}{2}v_2^2\\\\v_2=4.64\:m/s[/tex]

Answer:

Energy by definition is the property of matter that involves interactions with molecules, in order to perform an action.

Explanation:

They're many different types of energy, a few of them are...

. Thermal energy
. Solar energy
. Chemical energy
. Kinetic energy
. Potential energy
. Mechanical energy to name a few...

All of these specific energies involve the interaction of molecules which are used for different things and can be converted from one type of energy to another.

Hope this helps.

Answer:

I think that protection of one species can not protect its community.

Explanation:

The advantage of protecting entire ecosystems is the most effective way to save species because species confined to a small area could be wiped out by a single natural disaster. Some species require a large range to find adequate food or mate. Therefore, protecting the habitats of endangered and threatened species often means preserving or managing large areas (entire ecosystem).

It prove that liquid pressure increases with depth

Answer:

B, longitudinal moves up and down, seismic also,l

Answer:

0.4572 m

Explanation:

To convert inch to metre, divide the value by 39.37.

=》1 inch = 0.0254 metre

So,

18/39.37 = 0.4572 m

Hope it helps ⚜

The width of the printer is 0.4572 meters.

The metric conversion system is a standardized system of measurement based on the International System of Units (SI). It is used by scientists, engineers, and many others around the world to ensure consistency and accuracy in measurement.

The system is based on a series of prefixes that can be added to a base unit of measurement to create multiples or fractions of that unit. For example, the prefix "kilo-" means "thousand," so one kilometer is equal to 1,000 meters. The metric system is widely used in scientific and technical fields and is also the official system of measurement for many countries.

To convert inches to meters, we can use the conversion factor 1 inch = 0.0254 meters.

So, the width of the printer in meters is:

18 inches x 0.0254 meters/inch = 0.4572 meters

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Electric wires/cables expand when temperature rises l

Answer:

About 6 feet or higher is recommended.  

Explanation

Hi there!

Given the values for α and β, we can plug these into the given equation:

[tex]v(t) = 4t - 2t^2[/tex]

Begin by solving for the velocity at t = 0 and t = 3:

At t = 0:
[tex]v(0) = 4(0) - 2(0^2) = 0 \frac{m}{s}[/tex]

At t = 3:
[tex]v(3) = 4(3) - 2(3^2) = 12 - 18 = -6 \frac{m}{s}[/tex]

Acceleration is the SLOPE of the velocity graph (its derivative), so we can use the kinematic equation:

[tex]a = \frac{v_f - v_i}{\Delta t}[/tex]

Plug in the knowns:

[tex]a = \frac{-6-0}{3 - 0} = \boxed{-2 \frac{m}{s^2}}[/tex]

Answer:

The field and winding

Explanation: they are both connected