Answer:
a material with a large specific heat can absorb a great deal of thermal energy without a great change in temperature.
Explanation:
The specific heat capacity of an object is the amount of energy needed to raise the temperature of 1 kg of mass of a substance by .
Mathematically, it is given by:
where
Q is the amount of energy supplied
m is the mass of the substance
is the change in temperature of the substance
The equation can be rewritten as:
Therefore, we see that the increase in temperature of a substance is inversely proportional to its specific heat capacity.
Therefore, a material with a large specific heat can absorb a great deal of thermal energy without a great change in temperature.
The total momentum is unchanged according to the law of conservation of momentum. When the gun is fired, the bullet gains a high velocity forward (positive velocity), and that velocity multiplied by its mass is the momentum the bullet gains. Therefore, the gun must gain a momentum backwards to cancel out that momentum forward, so the gun recoils back with a negative velocity.
a.) Plants that thrive in the shade are often able to hold on to sunlight for extensive periods of time; they're in a sense like the camels of the plaNt WoRld.
b.) Though artificial lights are not nearly as beneficial as the sun, one could invest in one of them plant growing light thingies, but sun-loving plants might be sad if u do this instead of letting them soak in ePic rays from the sun.
Answer:
The average angular acceleration of the skater is <u>0.98 rad/s²</u>.
Explanation:
Given:
Initial angular speed of the skater is,
Final angular speed of the skater is,
Time interval for the change is,
We know that, average angular acceleration is given as the ratio of change of angular speed and the time interval.
Therefore, the average angular acceleration is given as:
Hence, the average angular acceleration of the skater is 0.98 rad/s².