Ask question

Ask question

All categories

Makovka662 [10]

3 years ago

8

A 30 kg box is placed on a skateboard and pushed across the room with a velocity of 4 m/s. The pusher applies more force, increa

sing the velocity to 10 m/s. How much work was done to move the box?

1 answer:

Reptile [31]3 years ago

3 0

Answer:

Dawg

Explanation:

Oh yea actually u suck

You might be interested in

The magnitude E of an electric field depends on the radial distance r according to E = A/r4, where A is a constant with unit vol

Lesechka [4]

Answer:

$\Delta V = 0.053 A$

Explanation:

Electric field in a given region is given by equation

$E = \frac{A}{r^4}$

as we know the relation between electric field and potential difference is given as

$\Delta V = -\int E. dr$

so here we have

$\Delta V = - \int (\frac{A}{r^4}) .dr$

$\Delta V = \frac{A}{3r_1^3} - \frac{A}{3r_2^3}$

here we know that

$r_1 = 1.71 m$ and $r_2 = 2.89 m$

so we will have

$\Delta V = \frac{A}{3}(\frac{1}{1.71^3} - \frac{1}{2.89^3})$

so we will have

$\Delta V = 0.053 A$

8 0

3 years ago

A ball is kicked and flies from point P to Q following a parabolic path in which the highest point reached is T. The acceleratio

Semenov [28]

After the foot leaves the ball, the acceleration is always downward and is equal to g at all points

7 0

3 years ago

Read 2 more answers

A block of mass 10kg is suspendet at a diameter of 20cm from the centre of a uniform bar im long, what force is required to bala

lana [24]

Answer:

4 kg of force

Explanation:

Force = (mass x distance to fulcrum) / length of fulcrum to end

Subsitute values

F = (10 x 20)/50

F =4

4 0

3 years ago

You have been offered an admission to a senior high school to persue a programme you like. Write a letter to the headteacher of

Anna [14]

Answer:

Find the letter below.

Explanation:

1237 Richmond Avenue,

Houston, Texas,

U.S.A.

3rd May, 2021.

The Principal,

Carnegie Vanguard High School,

Houston, Texas,

U.S.A.

Dear Sir,

APPRECIATION FOR THE ADMISSION OFFER IN YOUR SCHOOL

I humbly write this letter to express my sincere appreciation for the offer of admission in your highly esteemed institution of learning. The admission letter states that I was admitted to pursue a programme in Computer Science and this is a source of great delight for me. The opportunity is a unique one because I stand a great chance of acquiring deeper knowledge of programming software that will prove invaluable to me in my future career.

Over the years, I have been particularly thrilled with all the inventions that have been made possible with information technology and programming of many useful software. These inventions have made life a lot easier, hence my interest in getting the required knowledge that will enable me to contribute my quota to the society.

This programme will also afford me the opportunity to relate with seasoned professionals in the field of Information Technology. When in contact with these professionals, I hope to ask them several questions on programming, the technicalities involved in it, and what is obtainable in the real-world scenario. Armed with these pieces of information, I believe that the programme will shape me to be an excellent professional that will be useful to the society.

Once again, thank you for this very special opportunity. I hope to fully maximize the privilege.

Yours Sincerely,

Jessica Liam.

5 0

3 years ago

Help me plzzz?? I need help it on the picture

madam [21]

No.
The acceleration of gravity on or near Earth's surface is 9.8 m/s² ,
not 20 m/s² .

If it were 20 m/s², then you would weigh almost exactly double
what you really weigh now.

3 0

3 years ago