The resultant velocity is 360.81 m/s and the velocity of the dolphin swims is 11 m/s
Explanation:
The boat travelling is 13.4 m/s
The captain walks on the deck is 1.3 m/s
The resultant velocity = a² + b² = c²
= 13.4² + 1.3²
= 179.56 + 1.69
c² =
c= 360.81 m/s
To find the velocity, the dolphin swims in 55 m and the acceleration is 5.0 s
velocity = distance / acceleration
=
= 11 m/s
Therefore, the velocity is 11 m/s.
<span>The correct option is C. Energy cannot be created or destroyed. This statement is known as law of conservation of energy, and it implies that whenever a certain form of energy does change, the loss of this form of energy must have converted into an another type of energy. A typical example is an object falling to the ground: initially, the object has gravitational potential energy. As the object falls down, it loses potential energy (since its altitude from the grounf decreases), but it acquires kinetic energy (because its velocity increases). In this example, potential energy has converted into kinetic energy, but the total energy of the object has remained constant.</span>
Answer:
describe three different ways to change your velocity when youre riding a bike?
Answer:
39.8 °C
Explanation:
m = mass of the ice = 100 g
L = latent heat of fusion of ice = 334 Jg⁻¹
M = mass of water = 200 g
= specific heat of water = 4.2 Jg⁻¹°C⁻¹
= initial temperature of water = ?
= final temperature of water = 0 °C
Using conservation of heat
Heat gained by ice = heat lost by water
m L = M ( - )
(100) (334) = (200) (4.2) ( - 0 )
= 39.8 °C