All categories

3 years ago

2

Physics

2 answers:

salantis [7]3 years ago

7 0

Answer:

<em>Correct choice: A. The acceleration is directly proportional to the net force</em>

Explanation:

Newton's Second Law of Motion

According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force F and inversely proportional to the object's mass m:

$\displaystyle a=\frac{F}{m}$

Correct choice: A. The acceleration is directly proportional to the net force

timama [110]3 years ago

4 0

Answer:

Explanation:

The acceleration of an object is directly proportional to its net force.

$a = \frac{f}{m}$

You might be interested in

How can tidal force from the moon affect our earth?

VARVARA [1.3K]

Answer:

sorry but I can understand the question

5 0

3 years ago

Read 2 more answers

New York’s Finger Lakes were formed by the same process as the Great Lakes.

Papessa [141]

C. movement of glaciers.
Good Luck.

5 0

4 years ago

Read 2 more answers

A 250 kg flatcar 25 m long is moving with a speed of 3.0 m/s along horizontal frictionless rails. A 61 kg worker starts walking

Anna11 [10]

Answer:

x=31.09m

Explanation:

p1=p2

The momentum of flatcar and the momentum of the worker so

The velocity of the worker is:

$m_{f}*v_{f}=m_{w}*v_{w}\\\\v_{f}=\frac{m_{f}*v_{f}}{m_{w}}\\v_{f}=\frac{61kg*3.0\frac{m}{s}}{250kg}\\v_{f}=0.732\frac{m}{s}$

The total motion has a total velocity and is

$Vt=v_{w}+v_{f}\\Vt=0.732\frac{m}{s}+3.0\frac{m}{s}\\Vt=3.732\frac{m}{s}$

The time the worker take walking is

$t=\frac{x}{v_{w}}\\t=\frac{25m}{3\frac{m}{s}}=8.33s$

Now the total time and the total velocity determinate the motion of tha flatcar how far has moved

$x=t*Vt\\x=8.33s*3.732\frac{m}{s} \\x=31.09m$

5 0

3 years ago

PLEASSEE HELLPPP!! AM GIVING BRAINIEST!!

Pie

1. Marie and her husband discovered polonium, a new radioactive element, and radium. Marie was the first woman to receive a Novel Prize , and two in her lifetime. She was also the first scientist to receive two Nobel Prizes. Not only that, she was the first person to receive two Nobel Prizes in two different fields, Chemistry and Physics. During World War 1 Marie helped soldiers by creating the x ray. After the war ended Marie raised money to help cure and treat disease using radiology.

2. I am not exactly sure what is happening in that picture but it looks like a boat floating on sea than sunken by a shipwreck on dry land.

5 0

3 years ago

An emergency first aid kit should include

AlekseyPX

I say B

hope this helps

6 0

4 years ago