Answer:
The answer is c
Thermal energy moves within the air from the flames to the marshmallow.
Explanation:
Hope it helps
-90.0 °F = -67 and 7/9 °C
-90.0 °F also = +205.372 K
-5.0 °C = +23 °F
-5.0 °C also = +268.15 K
Answer:
Furthermore, the Pythagorean theorem works when the two added vectors are at right angles to one another - such as for adding a north vector and an east vector.
Answer: -10N
Explanation:
Given that,
negative charge (q1) = -2 C
positive charge (q2) = 4 C
Distance between charges (r) = 84,681 m
force between the two charges (F) = ?
Apply the formula for
F= (kq1q2) / r^2
Recall that k is Coulomb's constant with a value of 9 × 10^9 Nm2C−2
Then,
F = (9 × 10^9 Nm2C−2 x -2C x 4C) / (84,681 m)^2
F = (-7.2 x 10^10) / (84,681 m)^2
F = -9.998N (Rounded up to nearest whole number as -10N)
Thus, the force between the two charges is -10 newton
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<span>a) Work = force x distance = 5.0 x 10^5 x 509 = 2.54 x 10^8
b) no change in velocity, therefore KE = 0
c) KE = 31 J
d) v = 15 m/s</span>