Answer:
B. The motorcyclist traveled southeast along a highway at 55 mph and reached the campsite in less than the two-hour estimated time.
Explanation:
<em>Velocity </em>is the rate at which an object changes position in a specific direction. It has both <em>magnitude and direction.</em>
Travelling <em>southeast</em> at <em>55 mph</em> is a <em>velocity</em>. It gives both speed and direction.
Statements A., B., and C. give the direction but not the speed.
B) Repeated experiments that show the same results are less likely to contain experimental errorli
Answer:
- 3706.5 J.
Explanation:
The heat lost by the copper can be calculated using the formula:
Q = m.C.ΔT, where,
Q is the amount of heat lost by the mercury,
m is the mass of the copper <em>(m = 75.0 g)</em>,
C is the specific heat of Hg <em>(C = 0.140 J/g.°C)</em>,
ΔT is the temperature difference (the final temperature - the initial temperature<em> (ΔT = (297 K - 273) °C - (650 K - 273) °C = - 353 °C)</em>.
∴ The amount of heat lost by the mercury Q = m.C.ΔT = (75.0 g) (0.140 J/g.°C) (- 353 °C) = - 3706.5 J.
Answer:
The answer should be Sodium chloride
Answer:
Mercury, Earth, Saturn, Jupiter, and the sun
Explanation:
this is from smallest to largest. hope it helps