All categories

3 years ago

The pressure of a box pushes down on the floor is 50 Pa if the box weighs 400 N what is the area of the base of the box

Physics

1 answer:

Wewaii [24]3 years ago

5 0

Answer:8m^2

Explanation:

Area=force÷pressure

Area=400÷50

A=8m^2

You might be interested in

What is a cataclysmic comet?

iren [92.7K]

The comet which is violent and large scale, causing sudden and violent upheaval is known as "Cataclysmic Comet"

Hope this helps!

7 0

3 years ago

Read 2 more answers

Th answer is "electric attraction is a force that can act at a distance."

Tasya [4]

Electric forces is not action-by-distance. Charged particle emits a electric field radially outwards. It corresponds by the inverse-square, meaning it is 1/r^2.

7 0

2 years ago

Light shines through a single slit whose width is 5.7 x 10-4 m. A diffraction pattern is formed on a flat screen located 4.0 m a

lilavasa [31]

Answer:

$\lambda = 570\ nm$

Explanation:

Given,

Width of slit, W = 5.7 x 10⁻⁴ m

Distance between central bright fringe, L = 4 m

distance between central bright fringe and first dark fringe, y = 4 mm

Diffraction angle

$tan \theta = \dfrac{y}{L}$

$tan \theta = \dfrac{4}{4\times 10^3}$

$\theta = 0.0572$

Now.

$W sin \theta = m \lambda$

m = 1

$5.7 \times 10^{-4} \times sin (0.0572) = 1 \times \lambda$

$\lambda = 569.99 \times 10^{-9}\ m$

$\lambda = 570\ nm$

4 0

3 years ago

Specific heat is the amount of heat required to raise the temperature of a material by 1°C per what unit?

nydimaria [60]

The heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).

or C. Mass if you're on plato

3 0

2 years ago

Read 2 more answers

A plane accelerates from rest at a constant rate of 5.00 m/s2 along a runway that is 1800 m long. Assume that the plane reaches

tiny-mole [99]

Answer:

26.8 seconds

Explanation:

To solve this problem we have to use 2 kinematics equations: *I can't use subscripts for some reason on here so I am going to use these variables:

v = final velocity

z = initial velocity

x = distance

t = time

a = acceleration

${v}^{2} = {z}^{2} + 2ax$

$v = z + at$

First let's find the final velocity the plane will have at the end of the runway using the first equation:

${v}^{2} = {0}^{2} + 2(5)(1800)$

$v = 60 \sqrt{5}$

Now we can plug this into the second equation to find t:

$60 \sqrt{5} = 0 + 5t$

$t = 12 \sqrt{5}$

Then using 3 significant figures we round to 26.8 seconds

3 0

2 years ago