Answer:
a) If the mass get double then the potential of the spring gets four times.
b) P'=3.848 J
Explanation:
Given that
P= 0.962 J
m = 3.5 kg
m'= 7 kg
Lets take extension in the spring is x when the mass 3.5 kg is attached to the spring.
m g = K x
K=Spring constant
We know that potential energy given as
If the mass get double then the potential of the spring gets four times.
P'= 4 P
When mass ,m' = 7 kg
Then potential will be
-----1
-------2
From equation 1 and 2
P'= 4 x 0.962 J
P'=3.848 J
What has changed is the velocity. This is happen because :
- Velocity is a vector quantity that is easily affected by changes in the direction of motion.
- The presence of this displacement vector causes the resultant velocity to be 15√2 m/s.
<h3>Explanation</h3>
Hi ! Here I will discuss about velocity and speed. velocity is different from speed. Velocity depends on displacement (movement relative to the starting point) divided by the value of time. On the other hand, speed depends only on distance (how far the object is moving) regardless of the starting point of the movement. Therefore, velocity is called a vector quantity (a value that is easily influenced by direction), while speed is called a scalar quantity because it does not care about direction.
<h3>Proof </h3>
Why do I say there that the resultant velocity is 15√2 m/s ? This is because there is a double direction that makes it necessary to calculate the resultant using the formula:
>> = 90°
(Q.E.D)
Answer:
B or A Try your best to choose Between those 2 if not I'll help u
Explanation:
Many people are under the impression the phases originate from the shadow cast on the Moon by Earth. Some think the Moon is changing shape because of clouds. Alternatively, the movement of the Moon based only on its position in relation to Earth and the Sun. The Moon doesn't really create its own light, it actually reflects the light of the Sun, as all the planets do.
Answer:
speed cannot be used to calculate the temperature