m=20kg F=10N d=25m
Work done=?​

Answers

Answer 1

w=f×d

w=10N×25m

w=250Nm


Related Questions

how to create or build a homemade golf club. is this possible? If so, what suggestion did you find? Do you have an original idea on how to build a homemade golf club? what types of materials and tools would you need? what skills are necessary to construct the club?​

Answers

Answer:

All you need is golfing equipment make a small hole in the ground and have like something to cover the sun off of you and boom you got a golfing spot and a golf club no skills needed. Oh and you need a small flag for your gold hole but then your good and you can have fun

Explanation:

What travels by vibrating particles? Mechincal Waves or ElecrtoMagnetic Waves.

Answers

Answer:mechanical waves.

Explanation:

Mechanical waves require the particles of the medium to vibrate in order for energy to be transferred. For example, water waves, earthquake/seismic waves, sound waves, and the waves that travel down a rope or spring are also mechanical waves.

A car slows from 22 m/s to 3.0 m/s at a constant rate of 2.1 m/s2. How many seconds are required before the car is traveling at a forward velocity of 3.0 m/s?

Answers

Answer: 9.05 s

     

Explanation: v = u +at

v = 3 m/s

u = 22 m/s

Deceleration = 2.1 m/s^2

∴ 3 = 22 - 2.1 ( t )

∴ t = 9 .05 s

12. A baseball player throws a ball. While the 700.0-g ball is in the pitcher’s hand, there is a force of 125 N on it. What is the acceleration of the ball?

Answers

Answer:

F=ma

125N=.7*a solve for a.

Explanation:

A sign is attached to the side of a building as seen below. The sign is attached to a steel rod. A wire connects to the end of the rod for support. The mass of the sign is 50 kg. Determine the supporting force exerted by the cable

Answers

Answer:

500N

Explanation:

50kgx10N/kg

= 500N

1. *A car is going over the top of a hill whose curvature approximates a circle of radius 200 m. At
what velocity will the occupants of the car appear to weigh 20% less than their normal weight (or
their normal weight times 0.8)?

Answers

Answer:

The velocity of motion at which the occupants of the car appear to weigh 20% less than their normal weight is approximately 19.81 m/s

Explanation:

The given parameters are;

The curvature of the hill, r = 200 m

Due to the velocity, v, the occupants weight = 20% less than the normal weight

The outward force of an object due to centripetal (motion) force is given by the following equation;

[tex]F_c = \dfrac{m \times v^2}{r}[/tex]

Where;

r = The radius of curvature of the hill = 200 m

Given that the weight of the occupants, W = m × g, we have;

[tex]F_c = 0.2 \times W = 0.2 \times m \times g[/tex]

[tex]\therefore 0.2 \times m \times g = \dfrac{m \times v^2}{r}[/tex]

v = √(0.2 × g × r)

By substitution, we have;

v = √(0.2 × 9.81 × 200) ≈ 19.81

The velocity of motion at which the occupants of the car appear to weigh 20% less than their normal weight ≈ 19.81 m/s.

The velocity is 19.81 m/sec at which the occupants of the car appear to weigh 20% less than their normal weight and this can be determined by using the formula of centripetal force.

Given :

A car is going over the top of a hill whose curvature approximates a circle of radius 200 m.

The centripetal force acting on the car is given by the formula:

[tex]\rm F_c = \dfrac{mv^2}{r}[/tex]   ---- (1)

where m is the mass of a car, v is the velocity of the car and r is the radius of curvature.

Now, it is given that the occupants of the car appear to weigh 20% less than their normal weight that means:

[tex]\rm F_c = 0.2\times W[/tex]

[tex]\rm F_c = 0.2 \times m \times g[/tex]   --- (2)

Now, equate equation (1) with equation (2).

[tex]\rm \dfrac{mv^2}{r}=0.2\times m \times g}{}[/tex]

[tex]\rm v = \sqrt{0.2\times g \times r }[/tex]

[tex]\rm v = \sqrt{0.2\times 9.81 \times 200 }[/tex]

v = 19.81 m/sec

The velocity is 19.81 m/sec at which the occupants of the car appear to weigh 20% less than their normal weight.

For more information, refer to the link given below:

https://brainly.com/question/11324711

what is the total magnification of a microscope with an eyepiece magnification of 10x and an objective lens magnification of 50x quizziz

Answers

Answer:

500x

Explanation:

A microscope had an eyepiece magnification of 10x

The objective lens magnification is 50x

Therefore the total magnification can be calculated as follows

= 10 × 50

= 500x

Hence the total Magnificattion is 500x

A heat lamp produces 32.8 watts of power at a wavelength of 6.5 mm. How many photons are emitted per second

Answers

Answer: 1.1x10^21 photons / sec

Explanation:energy per photon

.. E / photon = hc / L = (6.626x10^-34 J x sec) x (3.00x10^8 m/sec) / (6.5x10^-6m)

.. E / photon = 3.06x10^-20 J / photon

then

.. (32.7 watts) x (1 J/sec / 1watt) x (1 photon / 3.06x10^-20J) = 1.1x10^21 photons / sec

The number of photons are emitted per second will be "1.07".

According to the question,

Power,

P = 32.8 watts

           = 32.8 J/s

Wave length,

λ = 6.5 μm

          = [tex]6.5\times 10^{-6}[/tex]

As we know,

→ [tex]E = \frac{hc}{\lambda}[/tex]

By substituting the values, we get

      [tex]= \frac{32.8}{\frac{(4.42\times 10^{-34})(3\times 10^{-4})}{4.5\times 10^{-6}} }[/tex]

      [tex]= \frac{32.8}{3.055e}[/tex]

      [tex]= 1.07[/tex]

Thus the above answer is correct.

Learn more about Photons here:

https://brainly.com/question/14758290

         

A ball is thrown up into the air. Ignore air resistance. When it is rising and reaches half of its maximum height,the net force acting on it is

Answers

Answer:

The net and only force acting on the ball thrown up into the air at half of its maximum height is the weight  of the ball

Explanation:

When the ball is rising in the air, the force, F, acting on it is given by the product of the mass, m × acceleration, a

The acceleration of a body thrown in the air = Gravitational acceleration = g = Constant

Therefore;

The force acting on the body thrown in the air F = Constant = m × g (downwards)

The force acting on the ball thrown up into the air at half of its maximum height = The mass of the ball × The acceleration due to gravity = The weight  of the ball.

At which point is the object not moving?

A
B
C
D
All of these.
None of these.

Answers

it’s none of those because it’s moving at a constant rate

FAST ANSWERS PLS ! **

Describe a time when you took a big risk. Tell why it was risky and what you learned about yourself.

Answers

Answer:

You have to answer this in your opinion!

Anyways, A time I took a big risk was when I decided to talk to strangers online. It was risky because the stranger was harrasing me and doing bad stuff to me online. I learned about online safety and I learned to be careful who I talk to online! :)

Explanation:

The flow of air caused by blend in the blank creates distant blank on earth surface

Answers

Question:

The flow of air caused by _____ and the Coriolis effect creates distinct _____ on Earth's surface.

Answer:

Differences in heatingWind patterns

Explanation:

The flow of air caused by variations in the rate at which the different parts are heated up as well as the Coriolis effect combine to create distinct wind patterns on Earth's surface.

The Coriolis Effect is used to describe a "force" that causes things (like objects, planes, air currents) traveling long distances around the Earth to appear to bend as they move rather than in a straight line.

Cheers

PLEASE ANSWER QUICK I WILL DO BRAINLIEST.
The four objects are dropped from a balcony at the same time in a vacuum. (image)

amount of force: (f=ma)
feather: 0.006*9.8 = 0.0598 N
frisbee: 0.15*9.8 = 1.47 N
bowling ball: 5*9.8 = 49 N
golf ball: 0.04*9.8 = 0.392 N

Using Newton’s second law, explain which object will hit the ground with the most force? Use the calculations above to support your response.

Answers

Answer:

the bowling ball or the frisbee

Explanation:

I think it's the bowling ball or the frisbee. I am not really sure, so if you get it wrong I am extremely sorry!!

a sports event, the car starts from rest, in 5.0 s its acceleration is 5.0 m/s2.
culate the distance travelled by car.

Answers

Answer:

62.5m

Explanation:

Given parameters:

Time  = 5s

Acceleration  = 5m/s²

Unknown:

Distance traveled by car  = ?

Solution:

To solve this problem, we use one of the motion equations as given below:

     S  = ut + [tex]\frac{1}{2}[/tex] at²

S is the distance traveled

t is the time taken

u is the initial velocity  = 0m/s

a is the acceleration

Now insert the parameters and solve;

      S = (0 x 5) + ([tex]\frac{1}{2}[/tex] x 5 x 5²) = 62.5m

What is the momentum of a 70 kg man who is running with a velocity of 2.5 m/s?

Answers

Answer:

175kg.m/s

Explanation:

Momentum= mv 70kg*2.5m/s

For many years the posted highway speed limit was 88.5 km/h but in recent years some rural stretches of highway have increased their speed limit to 104.6 km/h. In Maine the distance from Portland to Bangor is 215 km. How much time can be saved in making this trip at the new speed limit?

Answers

Answer:

Time Saved = 0.374 h = 22.4 min

Explanation:

First we calculate the time required at old speed limit:

s = v₁t₁

where,

s = distance from Portland to Bangor = 215 km

v₁ = old speed limit = 88.5 km/h

t₁ = time taken with old speed limit = ?

Therefore,

215 km = 88.5 km/h (t₁)

t₁ = (215 km)/(88.5 km/h)

t₁ = 2.429 h

Now, we calculate the time taken at the new speed limit:

s = v₂t₂

where,

s = distance from Portland to Bangor = 215 km

v₂ = new speed limit = 104.6 km/h

t₂ = time taken with new speed limit = ?

Therefore,

215 km = 104.6 km/h (t₂)

t₂ = (215 km)/(104.6 km/h)

t₂ = 2.055 h

So, the time saved will be:

Time Saved = t₁ - t₂ = 2.429 h - 2.055 h

Time Saved = 0.374 h = 22.4 min

What would the mechanical advantage of a ramp be if the length is 25 feet and the height is 5 feet?
10
125
5
30

Answers

Answer:

5.

Explanation:

From the question given above, the following data were obtained:

Length (L) of ramp = 25 feet

Height (H) of ramp = 5 feet

Mechanical advantage (MA) of ramp =?

Mechanical advantage of an inclined plane is simply defined as the ratio of the length of the ramp to the height of the ramp. Mathematically, it is expressed as:

Mechanical advantage = length /height

MA = L/H

With the above formula, we can simply calculate the mechanical advantage of the ramp as follow:

Length (L) of ramp = 25 feet

Height (H) of ramp = 5 feet

Mechanical advantage (MA) of ramp =.?

MA = 25 / 5

MA = 5

The, the mechanical advantage of the ramp is 5.

Answer:

5.

Explanation:

From the question given above, the following data were obtained:

Length (L) of ramp = 25 feet

Height (H) of ramp = 5 feet

Mechanical advantage (MA) of ramp =?

Mechanical advantage of an inclined plane is simply defined as the ratio of the length of the ramp to the height of the ramp. Mathematically, it is expressed as:

Mechanical advantage = length /height

MA = L/H

With the above formula, we can simply calculate the mechanical advantage of the ramp as follow:

Length (L) of ramp = 25 feet

Height (H) of ramp = 5 feet

Mechanical advantage (MA) of ramp =.?

MA = 25 / 5

MA = 5

The, the mechanical advantage of the ramp is 5.

Which of the technologies could mostly like be found in a wearhouse

Answers

Resources for a business

Different sources of heat . Explain

Answers

Answer:

sun,fire

Explanation:

The main source of heat is sun. It is because there is so much pressure in the core of sun that nuclear fusion takes place: hydrogen is changed to helium. Nuclear fusion creates heat and light.

help pls i need this right now

Answers

Answer:

C = - 1.625 i + 6.06 j

Explanation:

Positive angles are measured counterclockwise.

Positive angles are measured counterclockwise. To determine the component on the x axis we use the cosine of the angle while to determine the component on the y axis we use the sine of the angle.

[tex]C_{x}=6.28*cos(105)=-1.625\\C_{y}=6.28*sin(105)=6.06\\[/tex]

C = - 1.625 i + 6.06 j

An atom of lithium (Li) forms an ionic bond with an atom of chlorine (Cl) to form lithium chloride. How are the valence electrons of these atoms rearranged to form this bond?

A few valence electrons are shared between the atoms.
Many valence electrons are shared between the atoms.
Electrons are transferred from the chlorine atom to the lithium atom.
Electrons are transferred from the lithium atom to the chlorine atom.

Answers

Answer:

electrons are transferred from the lithium atom to the chlorine atom

Answer:

D

Explanation:

I just took the test :)

9. A student notices that wearing darker colors in sunlight makes him feel warmer, so he decides to conduct an experiment. He takes five pieces of different
colored cloth and wraps
each one around a water bottle. He then places all five bottles in direct sunlight and measures the temperature of the water in each bottle an hour later
What is the dependent variable in this experiment?
O the time he leaves it in the sunlight
O the amount of water in each bottle
O the color of the cloth
O the temperature of the water

Answers

Answer: 4

Explanation:

The dependent variable is the temperature of the water.

What is the net force of the diagram?

Answers

The answer is
For the diagram
90 N

can somebody calculate the velocity of this? ill give 30 points

Answers

Answer:

2m/s

Explanation:

time is 5 seconds

distance is 10m

the formula for velocity is v=d/t

so, v=10/5

v=2 m/s

True or false Adding salt to a pot of water will decrease the temperature that water boils at.

Answers

Answer:water gets hot at 212 so incress

Explanation:

Answer:

False

Explanation:

It will increase

Hello!
Define heredity, please.

Answers

Answer:

the sum of all biological processes by which particular characteristics are transmitted from parents to their offspring

If you run North for 5 meters and then East for 15 meters and then
South for 2 meters all in 22 seconds. What was your speed?
0 points

Answers

Answer:

1m/s

Explanation:

D = 22m

T = 22s

S = 22÷22

= 1 m/s

PLSS HELPPP Which is a better deal: a 2 terabyte external hard drive for $100, or a
400-gigabyte hard drive for $50?

Answers

Answer:two terabyte external hard drive for $100

Explanation:

Two terabyte external hard drive probably

Calculate the speed of a dog running through a yard covering 24m in 52s

Answers

Answer:

0.46 m/s (meters/second)

Explanation:

speed = distance/timespeed = 24/52speed = 0.461538462 m/sRounding this, we get speed = 0.46 m/s

How much energy is required to raise the temperature of 5.0 g of silver from 298 K to
334 K?

Answers

Answer:

43.2J

Explanation:

Q = m × c × ∆T

Where:

Q = amount of energy

m = mass (grams)

c = specific heat capacity

∆T = change in temperature

Mass = 5.0g

Specific heat capacity of Silver (Ag) = 0.240 J/g°C

We need to convert the temperature from Kelvin (K) to °C

Initial temperature = 298 - 273 = 25°C

Final temperature = 334 - 273 = 61°C

Q = 5 × 0.240 × (61°C - 25°C)

Q = 1.2 × 36

Q = 43.2J

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