Answer:
Conduction is the transfer of heat between substances that are in direct contact with each other. The better the conductor, the more rapidly heat will be transferred. Metal is a good conduction of heat. Conduction occurs when a substance is heated, particles will gain more energy, and vibrate more.
(a) The book decelerates as it moves upwards with magnitude of 6.77 m/s²
(b) The distance traveled by the book before stopping is 0.36 m.
The given parameters;
- mass of the book, m = 1.23 kg
- mass of coffee cup, m₁ = 505 g = 0.505 kg
- initial velocity, u = 2.21 m/s
- coefficient of kinetic friction, μk = 0.221
The vertical component of the force on the book-cup system;
The frictional force on the system;
The horizontal component of the force on the system;
The acceleration of the book along the slope is calculated as;
Thus, the book decelerates as it moves upwards with magnitude of 6.77 m/s²
(b) The distance traveled by the book before it comes to stop is calculated as;
Thus, the distance traveled by the book before stopping is 0.36 m.
Learn more here:brainly.com/question/16037543
D. 558 km/h because if you divide 1,395 by 2.5 you’ll get the answer and I know this is correct because the keyword for me to divide is average.
Answer:
v = 39.6 m/s (first answer option)
Explanation:
Use conservation of mechanical energy.
The starting is completely potential energy and the final is all kinetic energy:
which agrees with the first answer shown.
Answer:
Explanation:
solve the parallel resistances
30||40 and 50||30
17.14285714 and 18.75
total Resistance = 35.89285714
V = IR
9V = I *35.89285714
9V / 35.89285714 = I
0.250746 = I
Now use the resistance across AB
V = 17.14285714 * 0.250746
V = 4.29850
this is the Voltage drop across AB :P