That's a true statement ... not a question.
When the kinetic energy of an object changes, energy
may be transferred either to or from the object.
Answer:
Explanation:
We would most likely write the velocity of the ball as follow :
V(b<em>all</em> with respect to t<em>rain)</em> = Vbt
<span>COGNITIVE bias describes when your likes and dislikes affect how you think about something.
Cognitive bias encompasses a lot of biases. This bias is identified as an objective thinking limitation because your brain perceives information based on your personal experience and preference.
A lot of people tend to think negatively of things and ideas that they deem impossible or improbable or they have not personally experienced. They tend to be closed minded thus their life experiences will be limited.
Another example is when you undergo a trauma in any time of your life, the long term effect would be that you veer away from situations that are similar to the situation that led to the traumatic event. Because you already have a preconceived notion of an object or ideas, you tend to draw conclusion from this preconceptions and make generalizations that may be erroneous.</span>
I can't tell right away. The elevator's limit is given in terms of mass, but the four people are listed in terms of their weights. In order to compare them, we'll have to convert one or the other.
The total of the four people's weights is:
John . . . . . . . 850N
Betty . . . . . . . 530N
Robert . . . . . . 740N
Alice . . . . . . . .610N
Total . . . . . . 2,730N
The elevator can't accept more than 300 kg of mass.
The weight of any mass is (mass) x (gravity).
On Earth, 300kg weighs (300kg) x (9.8 m/s²) = 2,940 N.
Wonderful !
2,730N is less than 2,940N.
<em>Yes !</em> According to Otis' engineers, John, Betty, Robert and Alice <em>can safely ride the elevator together</em>, (although Betty and Alice may have a different opinion).
Answer:
Toward the centre of the circular path
Explanation:
The can is moved in a circular path: this means that it is moving by circular motion (uniform circular motion if its tangential speed is constant).
In order to keep a circular motion, an object must have a force that pushes it towards the centre of the circular trajectory: this force is called centripetal force, and its magnitude is given by
where m is the mass of the object, v its tangential speed, r the radius of the trajectory. This force always points towards the centre of the circular path.