In a velocity-time graph, the area under the curve represents the distance.
The distance traveled from 10s to 18 s is
Final Answer: The distance traveled is 40 m from time 10 s to 18 s.
Answer:
Force = mass times acceleration
Acceleration is change in velocity over time.
The elevator is moving at constant velocity. That means there is no net force on the elevator. Gravity is still acting on the elevator but the tension of cables, friction and other mechanism are cancelling out the acceleration due to gravity. The same as an elevator being held at a floor.
The normal force is the force exerted by surfaces the to stop you from passing through. It is perpendicular to the surface the object is on, in this case the 38.5kg person. It being an elevator I am assuming the floor is perpendicular to the force of gravity. Normal force is equal to the force being exerted on it, in this scenario the persons mass x acceleration due to gravity.
So your answer is 38.5kg x 9.81m/s^2 = 377.685N
Explanation:
What is the difference between the fourth harmonic and the nth harmonic?
The fourth harmonic has frequency f4= v/λ4= 4v/2L = 4f1, and, to generalise, The nthharmonic has frequency fn= v/λn= nv/2L = nf1. All waves in a string travel with the same speed, so these waves with different wavelengths have different frequencies as shown.
The answer is B, lithium would become positive and bromium would become negative.
Answer: Option (D) is the correct answer.
Explanation:
When energy is emitted in the form of rays or waves then this type of energy is known as radiation.
For example, the sun's energy is transferred through the vacuum of space to the earth is an example of heat transfer by radiation.
Whereas an ice cube melts while you hold it in your hand, hot soup rises to the top of the bowl while cooler soup sinks to the bottom, and coastal temperatures are cooler than temperatures in inland areas are not example of heat transfer by radiation.
