Ask question

Ask question

All categories

3 years ago

5

Find the Gravitational Potential at a point on the earth’s surface. Take mass of earth as 5.98 X 10 24 kg, its radius as 6.38 X

10 6 m and G = 6.67 X 10 – 11 Nm2 kg – 2.

1 answer:

kherson [118]3 years ago

5 0

Answer:

$-6.25 x 10^7 J/Kg\\\\$

Explanation:

The final answer is $-6.25 x 10^7 J/Kg\\\\$

You might be interested in

A vector has an x-component of length 10 and a y-component of length 3. What is the angle of the vector? (Hint: Use the inverse

Sonja [21]

The vector, the x-component and the y-component form a rectangle triangle where the vector is the hypothenuse and the x and y components are the two sides.
Calling $\alpha$ the angle between the vector and the horizontal direction (x), the two sides are related to $\alpha$ by
$\tan \alpha = \frac{v_y}{v_x}$
where vy and vx are the two components on the y- and x-axis. Using vx=10 and vy=3 we find
$\tan \alpha = \frac{3}{10} =0.3$
And so the angle is
$\alpha = \arctan (0.3)=16.7^{\circ}$

5 0

3 years ago

A worker pushes a crate horizontally across a warehouse floor with a force of 245 N at an angle of 55 degrees below the horizont

aev [14]

Answer:

option A

Explanation:

given,

For exerted by the worker = 245 N

angle made with horizontal = 55°

we need to calculate Force which is not used to move the crate = ?

Movement of crate is due to the horizontal component of the force.

Crate will not move due to vertical force acting on the it.

$F_y = F sin \theta$

$F_y = 245\times sin 55^0$

$F_y =200.69$

hence, worker's force not used to move the crate is equal to 200.69

The correct answer is option A

6 0

3 years ago

Read 2 more answers

Yall think aliens real? for me no, because people been trying to search for them through telescopes and stuff for years. but sti

Vsevolod [243]

Answer:

Personally I don't believe aliens exist maybe they do who knows but i don't think so.

Explanation:

7 0

3 years ago

Read 2 more answers

A student squeezes a clothespin 82 times in a minute. Then, using the same hand and the same clothespin, he squeezes the clothes

tia_tia [17]

Could have gotten tired after the first trial. ? i’m not sure if that’s it

3 0

3 years ago

The Initial velocity of a car moving along a straight path was 0 meters/second. After 10 seconds it reached a velocity of 25 met

satela [25.4K]

given that

initial velocity of car = 0 m/s

after t = 10 s

final velocity of the car = 25 m/s

now for average acceleration we can use

$a = \frac{v_f - v_i}{/Delta t}$

$a = \frac{25 - 0}{10}$

$a = \frac{25}{10} = 2.5 m/s^2$

<em>so here the acceleration will be 2.5 m/s^2</em>

3 0

3 years ago