The specific heat of water is 4.18 J/gC. This means that if 4.18 joules of energy (heat) is applied to a gram of water, the temperature will increase one degree Celsius.
The question has water increasing from 10C to 30C. This means that the water is increasing by 30-10=20C. There is also 20 grams of water. So, the amount of heat energy needed to do this is (4.18*20*20)=1672J
Answer:
<em>a. 137.5 m</em>
<em>b. 550 m</em>
Explanation:
<u>Accelerated Motion
</u>
If an object is changing its velocity at a constant rate, it has a uniformly accelerated motion. When the object is moving in one fixed axis, then the sign of the acceleration is negative if the object is braking, and positive if the object is increasing its speed.
The initial speed vo, final speed vt, acceleration a, and distance traveled x are related by the formula
a. The Race Car A has an initial speed of 55 m/s and it's said to stop. We must find at what distance it goes to vf=0. This means that the above formula becomes
Solving for x
The acceleration is , negative because it's against the movement. Thus
b. If the car is going twice as fast (v0=110 m/s), then
Answer:
while(x>=0)
{
<em>loop execution that manipulates x</em>
}
Explanation:
A while loop keep iterating as long as the condition inside is true. The necessary element to remember is to make your the condition variable is altered from within the loop. Otherwise, the loop will become an infinite loop.
The condition state that as long as the variable x is greater than or equal to 0, the loop will continue. If x becomes negative, the loop will terminate.
Answer:
It fell down
Explanation:
Because its heavy. The gravity pull down the stone into the ground
It grows... as expected of a muscle...