Mathematics is a broad subject that anyone who constantly practices by learning from first principle and from example will grow in perfection of the subject as time goes by. Hence, I strongly disagree
During my schools days, I struggled learning mathematics, at the time it was difficult, I began practising and learning from text examples, with time I got a hang of it and my grade and confidence level in the subject increased.
Learn more about Mathematics here:
brainly.com/question/6143254
Answer:
An inelastic collision, in contrast to an elastic collision, is a collision in which kinetic energy is not conserved due to the action of internal friction. In collisions of macroscopic bodies, some kinetic energy is turned into vibrational energy of the atoms, causing a heating effect, and the bodies are deformed.
Explanation:
Answer:
The energy is dissipated in the resistor at the rate of 0.482 W
Explanation:
Given :
Potential difference resistor 12 V
Energy dissipated in the resistor 0.630 W
New potential difference 10.5 V
We know that energy dissipated per unit time through resistor is given by,
⇒
Rate of energy dissipated is proportional to the square of the applied potential.
So for new potential we can write,
W
So new rate of energy dissipation is 0.482 W
Gravity constantly acts on the apple so it goes faster and faster ... in other words it accelerates.
Ignoring air resistance, its velocity increases by 9.8 meters per second every second. That is two lots of "per second" and is written:
9.8 m/s2
9.8 m/s2 is the acceleration due to gravity near the Earth's surface. Nearly everything in our lives happens near the Earth's surface, so that value gets used a lot, and is written as a little g:
g = 9.8 m/s2
The average value of g is 9.80665 m/s2, but values are different around the world, such as Calcutta at 9.78548, London at 9.81599 and Tokyo at 9.79805.
So most people just use 9.8 m/s2
This question was apprently selected from the "Sneaky Questions" category.
The store is 3 km from his home, and he walks there with a speed of 6 km/hr. So it takes him (3 km) / (6 km/hr) = 1/2 hour to get to the store.
That's 30 minutes. So the whole part-(a.) of the question refers to only that part of the trip, and we don't care what happens once he reaches the store.
a). Over the first 30 minutes of his travel, Greg walks 3.0 km on a straight road, and he ends up 3.0 km away from where he started.
Average speed = (distance/time) = (3.0 km) / (1/2 hour) = <em>6.0 km/hr</em>
Average velocity = (displacement/time) = (3.0 km) / (1/2 hour) = <em>6.0 km/hr</em>
There's probably some more questions in part-(b.) where you'd need to use Greg's return trip to find the answers, but johnaddy210 is only asking us for part-(a.).