Answer: 20 minutes
Explanation:
Given the following :
Average speed of train = 120km/hr
Distance = 40km.
The time take by the train moving at an average speed of 120km/hr to cover a distance of 40km due is ;
Recall:
Speed = distance / time
Therefore,
Time taken = distance covered / speed
Time taken = 40km / 120km/hr
Time taken = 1/ 3 hr
Therefore, 1/3 rd of an hour equals
1/3 × 60 = 20 minutes.
Time taken) 20 minutes
When you scan the hiker's body, you will notice a warm spot. Unless that person was dead, they would not be emitting heat.
<h3>What is hiking?</h3>
- According to Smokymountains.com, which examined more than 100 news reports of missing hikers, getting off the trail is the most common reason people get lost.
- That is not someone you want to be. Once you're on the trail, you can use the GPS to ensure you're on the right track.
- You can take it a step further by bringing a device like a Garmin IN Reach with you on the trail. This GPS also functions as a satellite communicator.
- Whereas hiking includes the word "walk," which is typically seen as jovial, easy, and pleasant, trekking is defined as a "journey," which is typically more difficult, requires more effort, and takes more than one day.
To learn more about hiker, refer to:
brainly.com/question/26614004
#SPJ13
The magnitude of magnitude force on the proton is 2.4 x 10⁻¹² N.
<h3>
Magnitude of magnetic force on the proton</h3>
The magnitude of magnitude force on the proton is calculated as follows;
F = qvB sinθ
where;
- q is the charge of the proton
- v is the speed of the proton
- B is the magnitude of the magnetic filed
- θ is the angle between the field and speed
Substitute the given parameters and solve for the magnetic force.
F = (1.6 x 10⁻¹⁹) x (3 x 10⁶) x (5) X(sin90)
F = 2.4 x 10⁻¹² N
Thus, the magnitude of magnitude force on the proton is 2.4 x 10⁻¹² N.
Learn more about magnetic force here: brainly.com/question/13277365
Bruh ima be honest with you idek
Answer:
894 electrons
Explanation:
The electrostatic force between the two charges is given by:
where we have
is the force
k is the Coulomb's constant
q1 = q2 =q is the magnitude of the charge on each sphere
r = 20.0 cm = 0.20 m is the distance between the two spheres
Substituting and solving for q, we find the charge on each sphere:
And since each electron has a charge of
the net charge on each sphere will be given by
where N is the number of excess electrons; solving for N,
