Answer:
a
The fastest speed is
b
The correct statements are
The net force is nonzero and points away from the center of the kissing circle
The rate of change of the momentum is nonzero and points toward the center of the kissing circle
c
The maximum speed is
d
The maximum speed is
Explanation:
The explanation is shown on the first and second uploaded image
Answer:
147.456077993 Hz
Explanation:
= Frequency of the sonar = 22 kHz
= Velocity of the whale = 4.95 m/s
v = Speed of sound in water = 1482 m/s
The difference in frequency is given by
The difference in frequency is 147.456077993 Hz
Explanation:
- Mass (m) = 6 kg
- Acceleration (a) = 6 m/s²
- Force (F) = ?
We know that,
<h3>• F = ma</h3>
→ F = (6 × 6) N
→ <u>F</u><u> </u><u>=</u><u> </u><u>3</u><u>6</u><u> </u><u>N</u>
Therefore, the net force is 36N.
Answer:
B. Must eat to get energy
Explanation:
The common characteristics of all consumers is that they must eat to get energy. This way, they are termed heterotrophs.
Heterotrophs are organisms that cannot make their own food. They must eat other organisms to obtain nutrition for energy needs.
Plants do not do this. They are autotrophs in that they simply make their own food.
They use this food to obtain energy for their living activities.