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4 years ago

What’s is a object that moves through the air space acted on only by gravity

Physics

2 answers:

inessss [21]4 years ago

7 0

This describes projectile motion while neglecting any outside forces other than gravity

Arada [10]4 years ago

4 0

I believe the answer is projectile
As the object reach its maximum height after it thrown, its speed will falls into 0. But due to the gravity force, the speed of the object will start to accelerate again after it came down until it hit another medium.
Example of projectiles: a thrown baseball, a catapult shot.

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A bottle of soda always has a space between the cape and the top of the liquid. Explain<br>

serious [3.7K]

Answer:

All soft drinks contain water. When soft drink bottles are chilled in sub-zero temperatures, the water on account of its anomalous expansion expands. Thus, to provide space for expanding water, soft drink bottles are not completely filled as otherwise they will burst.

Explanation:

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3 years ago

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The _________________________ system is responsible for blood flow and the carrying of oxygen to the different parts of the body

Natali [406]

Answer:

circulatory system

Explanation:

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3 years ago

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I want to make a Twinkie splat when I throw it off a building. Because Twinkies are notoriously hard to crush, I want it to hit

Monica [59]

Answer:

$s=253.6524712 \approx 253.7$

Explanation:

From the question we are told that

Initial speed $v=8ft/s$

Final speed $v=128ft/s$

Generally the Newtons equation of motion is mathematically represented by

$V_f^2-V_0^2=2as$

with

Therefore

$a=g=>9.81m/s^2\\a=32.17ft/s^2$

Therefore

$128^2-8^2=2*(32.17)*s$

$16320=2*(32.17)*s$

$s=\frac{16320}{2*(32.17)}$

$s=253.6524712 \approx 253.7$

3 0

3 years ago

A proton is traveling -x direction through a uniform magnetic field which is in the +x direction. In which direction will the pr

djyliett [7]

Answer:

No force acts on it. It will not be pushed.

Explanation:

The proton moving in the -X direction implies its velocity is in the -X direction and the magnetic field is given to be in the +X direction. So the angle between them is 180 degrees. So no force acts on the proton, since the velocity and magnetic field are anti parallel.

Magnetic force is given by the equation F = q v B sin theta where theta is the angle between the velocity and the magnetic field. This force will be a maximum if they are perpendicular to each other.

6 0

3 years ago

2.3mol of monatomic gas A initially has 4700J of thermal energy. It interacts with 2.6mol of monatomic gas B, which initially ha

rewona [7]

Answer:

Gas B has the higher initial temperature

6,199 J

7,008 J

Explanation:

Mathematically;

The thermal energy of a gas is given by:

E = 3/2 n kT

Where n is the number of moles, K is the molar gas constant and T is the temperature

For Gas A;

4700 = 1.5 * 2.3 * 8.31 * T

T = 4700/28.6695

Thus, T = 163.94 K

For gas B

8500 = 1.5 * 2.6 * 8.31 * T

T = 8500/32.409

T = 262.27 K

This means that gas B has a higher temperature than gas A.

At equilibrium, temperature

T = naTa + nbTb / (na + nb )

T = [2.3(163.94) + 2.6(262.27)]/(2.3 + 2.6)

T = [377.062 + 681.902]/4.9 = 216.12 K

216.12 K is the equilibrium temperature

= 216.12 K is the equilibrium temperature.

Thus, final thermal energy of Gas A and B

Gas A = 1.5 * 2.3 * 8.314 * 216.12= 6,199 J

Gas B = 1.5 * 2.6 * 8.314 * 216.12 = 7,008 J

5 0

4 years ago