Answer:
5.0 km/h = 5.0 km/60min
speed = distance/time
distance = speed x time = 5.0km/60min x 19min = 1.6km
Explanation:
Answer:
Time = 12.06 seconds
Explanation:
Given the following data;
Power = 2.984 KW = 2984 Watts
Workdone = 3.60 × 10^4 J = 36000 J
To find the time;
Power = workdone/time
Time = workdone/power
Time = 36000/2984
Time = 12.06 seconds
Therefore, the engine would have to run for 12.06 seconds.
Hi Andrescruz9386
The ball in someone's hand is a balanced force because the object is staying in motion and is not changing at all so its evenly balanced, if its swinging back and fourth it is in motion and it wont stop till it becomes unbalanced, if the ball is just being held above the ground yes its balanced because nothing Is happening to it, its basically like a balance scale, if both sides are even and equal, than nothing will happen because there is no side that has more or less its equal so that's why its balanced, in order for it to be unbalanced it has to be brought upon unbalanced forces.
Answer:c
Explanation:
In Physics we follow the sign convention i.e. work done by the system is considered as positive i.e. work is being done by system on the surrounding and vice-versa.
For heat :Heat added to the system is considered as Positive while heat loss to surrounding is considered as negative.
thus doing work on the surrounding(work done by system) w=+
Losing heat to the surrounding q=-
Mechanical and Chemical. (Weathering and erosion)
