Ask question

Ask question

All categories

4 years ago

9

The box in the above picture is falling from the top of a building to the ground. Two major forces are acting on the box as it f

alls. Which force is represented by the arrow labeled Q?

1 answer:

Darya [45]4 years ago

7 0

I need to see the picture. It is either gravity or air resistance (friction)

You might be interested in

Suppose that it takes a simple pendulum 1.2 seconds to swing from its leftmost point to its rightmost point. what is the period

Mariana [72]

The time period of the simple pendulum is 2.4 seconds.

Given the data in the question;

Time taken to swing from leftmost point to rightmost point; $t = 1.2s$

Period of the pendulum; $T = \ ?$

<h3>What is Period?</h3>

Period is the time needed for a complete cycle of vibration to pass a given point.

Period of a pendulum is the of time needed for it to complete one full back-and-forth motion. It is the time required to for the pendulum to swing from leftmost point to rightmost point and back to leftmost point.

Now, if it took the pendulum $1.2s$ to swing from leftmost point to rightmost point, it will also take the pendulum $1.2s$ to swing back to its original position( leftmost point )

Hence,

$T$ = time taken to swing from leftmost to rightmost + time taken to swing from rightmost point to leftmost point.

$T = 1.2s + 1.2s\\\\T = 2.4s$

Therefore, the time period of the simple pendulum is 2.4 seconds.

Learn more about Time Period: brainly.com/question/27135322

7 0

3 years ago

Arm circles are an effective dynamic stretch for swimmers because they raise blood pressure and improve muscle stamina lower bod

dybincka [34]

Answer : Option C) copy the movements performed during the activity.

Explanation : Arm circles are an effective dynamic stretch for swimmers because they copy the movements performed during the activity.

During swimming when the arm circles are performed it stretches the triceps brachii, loosens the shoulder blade and stretches the side muscles.

Often many people are observed to perform this arm circles stretch without bringing the elbow behind the head, but especially for swimmers, this increases the stretching length and reduces stress while swimming.

8 0

3 years ago

Read 2 more answers

If the density of the fuel is 0.821 g/ml, what mass of fuel has the airplane taken on?

bija089 [108]

<em>Mass of fuel has the airplane took on = 167.89 kg</em>

$\boxed{\boxed{\bold{Further~explanation}}}$

Density is a quantity derived from the mass and volume

density is the ratio of mass per unit volume

With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller type of mass

The unit of density can be expressed in g / cm3 or kg / m3

Density formula:

$\large{\boxed{\bold{\rho~=~\frac{m}{V} }}}$

ρ = density

m = mass

v = volume

A common example is the water density of 1 gr / cm3

If we look at fuel capacity data such as Airbus which has a maximum capacity of 204, 5 liters then the mass of fuel it carries is

ρ = 0.821 gr / ml = 0.821 kg / l

mass = ρ . V

mass = 0.821 kg / l . 204.5 liters

mass = 167.89 kg

So the mass of fuel carried by aircraft is 167.89 kg

$\boxed{\boxed{\bold{Learn~more}}}$

density and molarity of the solution brainly.com/question/8151398

the percent of acetic acid in the vinegar brainly.com/question/3001349

the mass percent brainly.com/question/5142462

the mass of the fuel in kilograms brainly.com/question/8312085

the relative density of the fuel

brainly.com/question/10889330

Keywords: density, mass, volume, aircraft, fuel, derivative quantities

7 0

3 years ago

Read 2 more answers

How is the pressure exerted and the area on which it is exerted are related to each other?

andrezito [222]

Pressure = force/area

3 0

4 years ago

Density Questions

Katen [24]

Explanation:

let's take the volume of each first:

ice cream: 10×10×4=400cm^3

freezer: 40×40×20=32,000cm^3

now we just divide: 32000/400=80

5 0

3 years ago