All categories

3 years ago

Which projectiles will be visibly affected by air resistance when they fall?

1 answer:

4 0

Any object that is launched as a projectile will lose speed and, as a result, altitude, as it travels through the air. The rate at which the object loses speed and altitude depends on the amount of force that way applied to it when it was launched. It is also dependent on the size and shape of the item. This is why something like, say, a football is much faster to fall to the ground than a bullet.

You might be interested in

A boy with a mass of 30kg rides a merry-go round with a radius of 1.5 meters and a velocity of 0.38 m/s. What is the centripetal

gregori [183]

Answer:

The centripetal force on the boy = 2.888 N

Explanation:

Given:

m = 30 kg

r = 1.5 m

v = 0.38 m/s

To Find:

The centripetal force on the boy = ?

Solution:

F = m x v^2 / r

F = 30 kg x (0.38 m/s)^2 / 1.5 m

F = 30 x 0.1444 / 1.5

F = 2.888 N

Therefore,

The centripetal force on the boy = 2.888 N

PLEASE MARK ME AS BRAINLIEST!!!

7 0

3 years ago

I need help with this

Tanzania [10]

While ice melts, it remains at 0 °C, and the liquid water that is formed with the latent heat of fusion is also at 0 °C. The heat of fusion for water at 0 °C is approximately 334 joules per gram, and the heat of vaporization at 100 °C is about 2,230 joules per gram. So it will be C

7 0

4 years ago

Read 2 more answers

When sediment created by weathering and moved by erosion settles in a different location due to gravity

Stolb23 [73]

Answer:

Deposition

Explanation:

3 0

3 years ago

Read 2 more answers

6kg of human blood at a temperature of 65degees celcius is mixed with 4kg of human blood ata temperature of 20 degrees celcius .

Gennadij [26K]

Answer:

$T_f=47^{\circ}$

Explanation: Two samples of blood that have different masses and temperatures and are mixed, we have to find the final temperature of the mixture. the final temperature can be found using the following formula:

$T_f=\frac{(m_1\cdot T_1+m_2T_2)}{(m_1+m_2)}\Rightarrow(1)$

(1) Formula basically tells us that the product of mass and temperature remains constant throughout, so the addition of two products of the two separate blood samples would be equal to the product of final temperature and the total mass of the mixture. Mathematically this means that:

$\mleft(m_1+m_2\mright)T_f=(m_1\cdot T_1)+(m_2T_2)$

Using (1) and plugging in the corresponding values, we get the answer as follows:

$\begin{gathered} T_f=\frac{(m_1\cdot T_1+m_2T_2)}{(m_1+m_2)}\Rightarrow(1) \\ m_1=6\operatorname{kg} \\ m_2=4\operatorname{kg} \\ T_1=65^{\circ} \\ T_2=20^{\circ} \\ \therefore\rightarrow \\ T_f=\frac{(6kg\cdot65^{\circ}+4\operatorname{kg}\cdot20^{\circ})}{(6kg+4\operatorname{kg})}=\frac{(390+80)}{10}=\frac{470}{10}=47^{\circ} \\ \therefore\rightarrow \\ T_f=47^{\circ} \end{gathered}$

4 0

2 years ago

What is the meaning of inertia?

SSSSS [86.1K]

Inertia is the property of all matter by which it tends to remain
in constant, uniform motion unless acted on by external force.

7 0

3 years ago

Read 2 more answers