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Given: m=1500kg a=v-u/t U=0 m/s V=30 m/s t= 10s So , here S.I unit of force is same so no change in it . Formula of force =m* a 1500× (0-30/10) = 1500×3= 4500 So,therefore the force is 4500N S.I unit of force is Newton /kg m/s . Newton is represented as N

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It is required to increase the velocity of a scooter of mass 80kilogram from 5 to 25 meter/square in 2second calculate force required

Posted by Rocky Rocks 3 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Neha Kandpal 3 years, 7 months ago

Given Mass of scooter(m) = 80kg Initial velocity(u)= 5m/s Final velocity(v)= 25m/s Time(t) = 2s. Force = mass* acceleration. F= 80* 25-5/2 = 80*10 = 80N.

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An object undergoes an acceleration of 8meter/secondsquare starting from rest find distance travel in

Posted by Rocky Rocks 3 years, 7 months ago

CBSE > Class 09 > Science

2 answers

Sandeep Sandeep 3 years, 7 months ago

4 metre

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Nitya Gupta 3 years, 7 months ago

Acceleration=8ms −2 Time=1sec Distance travelled , s=? Initial velocity, u=0 Using the equation, s=ut+ 2 1 at 2 s=0×1+ 2 1 ×8×1 2 =4meter

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When a force of 40n is applied on a body it moves the acceleration of 5meter/secondsquare calculate mass

Posted by Rocky Rocks 3 years, 7 months ago

CBSE > Class 09 > Science

4 answers

Sandeep Sandeep 3 years, 7 months ago

Mass is 8kg

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Nithya Sri 3 years, 7 months ago

F=m×a a=f/m f=40 N a=5 m/s So, 40/5=8 Mass= 8kg

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Aditi Tiwari Aditi. 3 years, 7 months ago

Sorry 8 kg

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Aditi Tiwari Aditi. 3 years, 7 months ago

80kg

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What do you mean by photosynthesis?

Posted by Abhishek Kumar 3 years, 7 months ago

CBSE > Class 09 > Science

5 answers

Ananya Verma 3 years, 7 months ago

The process by which plants make their food with the help of sunlight and carbon dioxide is called photosynthesis

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Gurleen Kaur 3 years, 7 months ago

The process by which plants make their food with the help of sunlight...

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Sandeep Sandeep 3 years, 7 months ago

The process by which plants make their food with the help of sunlight is called photosynthesis

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Sarthak Sharma 3 years, 7 months ago

It is the process in which plant make their food with the help of sunlight

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Bom Tastic Junaid 3 years, 7 months ago

In this process plant makes their food from sun light

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What is ha ha ha

Posted by Jatin Dadhich 3 years, 7 months ago

CBSE > Class 09 > Science

5 answers

Swati Pawan 3 years, 7 months ago

Ha ha ha used to represent laughter

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Sandeep Sandeep 3 years, 7 months ago

Ha ha ha Is the sound people usually make while laughing

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Nithya Sri 3 years, 7 months ago

Laughing sound

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Debasmita Nath 3 years, 7 months ago

It's just a sound we make while laughing loudly

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Abhishek Kumar 3 years, 7 months ago

It's noth

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1 calorie = _?_?_ joule.

Posted by Aayush Singh@8 3 years, 7 months ago

CBSE > Class 09 > Science

5 answers

Sandeep Sandeep 3 years, 7 months ago

1 calorie is equal to 4.18 joule

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Nithya Sri 3 years, 7 months ago

4 joule (approx)

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Krishna Chaudhary 3 years, 7 months ago

4.18 joule

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Debasmita Nath 3 years, 7 months ago

4.18 joule

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Nitya Gupta 3 years, 7 months ago

1 calorie = 4.18 joule

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What is components of solution

Posted by Moin Sheikh 3 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Moin Sheikh 3 years, 7 months ago

The components are solute and solvent

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Why do certain animal make burrows their home, especially for the daytime?

Posted by Krishnakant Singh 3 years, 7 months ago

CBSE > Class 09 > Science

0 answers

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Write a short note on axon

Posted by Tanu Shree 3 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Krishnakant Singh 3 years, 7 months ago

An axon (from Greek ἄξων áxōn, axis), or nerve fiber (or nerve fibre: see spelling differences), is a long, slender projection of a nerve cell, or neuron, in vertebrates, that typically conducts electrical impulses known as action potentials away from the nerve cell body. The function of the axon is to transmit information to different neurons, muscles, and glands. In certain sensory neurons (pseudounipolar neurons), such as those for touch and warmth, the axons are called afferent nerve fibers and the electrical impulse travels along these from the periphery to the cell body, and from the cell body to the spinal cord along another branch of the same axon.

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Write names of solutions used to stain plants cell and animal cells while making a slide

Posted by Akanksha Musmade 3 years, 7 months ago

CBSE > Class 09 > Science

2 answers

Shrishti Tiwari 3 years, 7 months ago

Tnx

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Anshul Patel 3 years, 7 months ago

safranin is the stain used in plant cell Methylene Blue - stains animal cells

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A person travels 6 km in a circular path and reaches back on the starting point. Calculate the displacement

Posted by Akanksha Musmade 3 years, 7 months ago

CBSE > Class 09 > Science

3 answers

Sandhya Kumari 3 years, 7 months ago

Displacement will be zero

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Pratap Maurya 3 years, 7 months ago

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Anshul Patel 3 years, 7 months ago

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An iron block is in a shape of cuboid with dimision 4cm ×2.5cm×16cm if its mass 778g calculate the density of iron block

Posted by Megha Verma 3 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Nishant Roy 3 years, 7 months ago

12448g

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why do helium neon and argon have zero valency ?

Posted by Mohit Sinha 3 years, 7 months ago

CBSE > Class 09 > Science

3 answers

Krishna Chaudhary 3 years, 7 months ago

Because their outermost cells or energy levels are completely filled

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Sandhya Kumari 3 years, 7 months ago

Because their outermost cells or energy levels are completely filled

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Vipin 9 A 3 years, 7 months ago

Helium, Neon and argon have zero valency because the electron distribution in last cell of them is full fill and they became Nobel gas so they can't be give electron and take electron

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Differentiate between solid and liquid and Gas

Posted by Arjun Pratap 3 years, 7 months ago

CBSE > Class 09 > Science

2 answers

Krishnakant Singh 3 years, 7 months ago

solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume. change of state: When matter is converted from one of the three states (example: solid, liquid, or gas) to another state.

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Priyal Gupta 3 years, 7 months ago

Solid have fixed volume and shape. Liquid have fixed volume but does not have fixed shape. Gases does not have fixed volume and shape.

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find the no . of protons, electrons & neutrons in (a) potassium atom (b) calcification ca²+

Posted by Anish Maurya 3 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Harsh Bharti 3 years, 7 months ago

Answer (a) protons =19,electrons =19, neutrons = 20

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A solution of urea in water contains 16grams of it in 120 grams of solution

Posted by Leitanthem Denel [Youtube] 3 years, 7 months ago

CBSE > Class 09 > Science

0 answers

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An athlete runs along a track shown in the figure B to C along BAC . What are his distance covered and displacement

Posted by Japan Kaur 3 years, 7 months ago

CBSE > Class 09 > Science

0 answers

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How are components of mixture of two or more miscible liquids having difference in their boiling point less than 25K separated? Describe the process.

Posted by Tanishka G 3 years, 7 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What are colloidal solutions?

Posted by Disha Verma 3 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Naitik Shah 3 years, 7 months ago

A colloid is a kind of solution in which the size of solute particles is intermediate between those in true solutions and those in suspensions. For Example: - Soap solution, Milk, Ink, Blood and solutions of synthetic detergents.

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What are chartectise of sound?

Posted by Niyati Mangela 3 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 3 years, 3 months ago

Wavelength. Source: www.sites.google.com.
Amplitude.
Time-Period.
Frequency.
Velocity of Wave (Speed of Wave)

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The number of osillation in one second is called?

Posted by Niyati Mangela 3 years, 7 months ago

CBSE > Class 09 > Science

3 answers

Naitik Shah 3 years, 7 months ago

Abe ek answer do na

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Shreya Tiwari 3 years, 7 months ago

Hertz

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Prince Taretiya 3 years, 7 months ago

Frequency

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What meant by mixture

Posted by Mruduls S 3 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Sagnik Panigrahi 3 years, 7 months ago

MIXTURE:- A mixture is a substance which consists of two or more elements or compounds not chemically combined together. For Example: - Air is a mixture of gases like oxygen, nitrogen, argon, CO2 and water vapour.

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Deleted chapter of science

Posted by Rachel Beck 3 years, 7 months ago

CBSE > Class 09 > Science