Ask question

Ask question

All categories

3 years ago

12

How effectiveness of a small force is increased when action area of force is reduced?

1 answer:

STatiana [176]3 years ago

3 0

Answer:

The force is proportional to the area, for if we increase the area but keep the number of molecules per cubic centimeter the same, we increase the number of collisions with the piston in the same proportion as the area was increased.

Explanation:

more area =more space = more free for molecules = less pressure = less force.

You might be interested in

Name at least four factors involved in performing a good throw.

atroni [7]

Answer:

You need to have a good stance, release, power, speed, body, movement, and aim. You should be able to throw an effective pass or throw by using your body and having the correct amount of balance and form.

Explanation:

7 0

3 years ago

What is the main difference between a gas and a plasma?

FrozenT [24]

Gases are not ionized while plasma is.

9 0

4 years ago

Read 2 more answers

The Sun has a mass of 1.99x10^30 kg and a radius of 6.96x10^8 m. Calculate the acceleration due to gravity, in meters per second

just olya [345]

Answer:

$g=274\ m/s^2$

Explanation:

Mass of the Sun, $M=1.99\times 10^{30}\ kg$

The radius of the Sun, $r=6.96\times 10^8\ m$

We need to find the acceleration due to gravity on the surface of the Sun. It is given by the formula as follows :

$g=\dfrac{GM}{r^2}\\\\g=\dfrac{6.67\times 10^{-11}\times 1.99\times 10^{30}}{(6.96\times 10^8)^2}\\\\g=274\ m/s^2$

So, the value of acceleration due to gravity on the Sun is $274\ m/s^2$ .

8 0

3 years ago

A 1100 kg car is traveling around a flat 82.3 m radius curve. The coefficient of static friction between the car tires and the r

Novay_Z [31]

Answer:

The maximum speed of car will be 20.5m/sec

Explanation:

We have given mass of car = 1100 kg

Radius of curve = 82.3 m

Static friction $\mu _s=0.521$

We have to find the maximum speed of car

We know that at maximum speed centripetal force will be equal to frictional force $m\frac{v^2}{r}=\mu _srg$

$v=\sqrt{\mu _srg}=\sqrt{0.521\times 82.3\times 9.8}=20.5m/sec$

So the maximum speed of car will be 20.5m/sec

8 0

3 years ago

Read 2 more answers

You are holding a shopping basket at the grocery store with two 0.60 kg cartons of cereal at one end of the basket. The basket i

ludmilkaskok [199]

Answer:

The gallon of milk is placed at a distance of 0.641 meters.

Explanation:

We have,

Mass of two 0.6 kg cartons of cereal is 1.2 kg

Length of the basket, l = 0.77 m

Center of the basket is 0.385 m

Mass of the half gallon of milk is 1.8 kg

Total weight in the basket is 1.2 + 1.8 = 3 kg

We need to find the position of the gallon of milk so that the center of mass (COM) of your groceries is at the center of the basket.

So,

(3 × 0.385) = (1.2 × 0) + (1.8 × x)

1.155 = 1.8 x

x = 0.641 meters

So, the gallon of milk is placed at a distance of 0.641 meters.

5 0

4 years ago