Answer:
Things that have the same charge push each other away (they repel each other). This is called the Law of Charges. … Things that have more electrons than protons are negatively charged, while things with fewer electrons than protons are positively charged. Things with the same charge repel each other.
Explanation:
The net force acting on the object perpendicular to the table is
∑ F[perp] = F[normal] - mg = 0
where mg is the weight of the object. Then
F[normal] = mg = (15 kg) (9.8 m/s²) = 147 N
The maximum magnitude of static friction is then
0.40 F[normal] = 58.8 N
which means the applied 40 N force is not enough to make the object start to move. So the object has zero acceleration and does not move.
This would be called the battery. Hope this helps.
0.5MN
Explanation:
Given parameters:
Mass flow rate = 249kg/s
speed of exhaust = 2km/s
Unknown:
Thrust of the rocket = ?
Solution:
Thrust is a force that was captured in the newton's third law which states that "action and reaction are equal and opposite".
Here, the thrust is the force that was exerted by the rocket engine.
Thrust of the rocket = mass flowrate x speed of exhaust
Now we have to convert km/s to m/s
1000m = 1km
2 x x = 2000m/s
Thrust = 249 x 2000 = 498,000N
To MegaNewton, divide by 1000000; this gives 0.5MN
Learn more:
Thrust brainly.com/question/11411375
#learnwithBrainly
Answer:
F=480.491 N
Explanation:
Given that
mass ,m = 22 kg
Angular speed ω = 40 rev/min
ω =4.18 rad/s
The radius r= 1.25 m
We know that centripetal force is given as
F=m ω² r
Now by putting the values in the above equation we get
F=480.491 N
Therefore the centripetal force on the child will be 480.491 N.