Answer:3.67 m/s
Explanation:
mass of block(m)=2 kg
Velocity of block=6 m/s
spring constant(k)=2 KN/m
Spring compression x=15 cm
Conserving Energy
energy lost by block =Gain in potential energy in spring
![2\left [ 6^2-v_2^2\right ]=2\times 10^3\times \left [ 0.15\right ]^2](https://tex.z-dn.net/?f=2%5Cleft%20%5B%206%5E2-v_2%5E2%5Cright%20%5D%3D2%5Ctimes%2010%5E3%5Ctimes%20%5Cleft%20%5B%200.15%5Cright%20%5D%5E2)
Answer:
kinetic energy will change by a factor of 1/2
Option C) 1/2 is the correct answer
Explanation:
Given the data in the question;
we know that;
Kinetic energy = 1/2.mv²
given that mass of the object is doubled; m1 = 2m
speed is halved; v1 = V/2
Now, New kinetic energy will be; 1/2.m1v1²
we substitute
Kinetic Energy = 1/2 × 2m × (v/2)²
Kinetic Energy = 1/2 × 2m × (v²/4)
Kinetic Energy = 1/2 × m × (v²/2)
Kinetic Energy = 1/2 [ 1/2mv² ]
Kinetic Energy = 1/2 [ KE ]
Therefore; kinetic energy will change by a factor of 1/2
Option C) 1/2 is the correct answer
Answer:
<h3>The answer is 80 N</h3>
Explanation:
The force acting on the object can be found by using the formula
where
d is the distance
w is the work done
We have
We have the final answer as
<h3>80 N</h3>
Hope this helps you
Answer:
B.) “Shininess” should be explained as “Light bounces off the moving electrons.”
Explanation:
Answer:
A By returning nutrients to the soil
Explanation:
Here are the options
A By returning nutrients to the soil
B By releasing oxygen into the air
C By making space for new animals
D By decreasing the population of herbivores
The process by which mushrooms act on dead trees provide nutrients that are necessary for the process of photosynthesis.
Types of decomposers
- Fungi - mushroom is an example of a fungi
- Bacteria
- Insects - beetle is an example of an insect
- Earthworms
Functions of a decomposer
- A decomposer recycles dead plants and animals to release nutrients into the soil.
- They are ecological cleaners. they carry out this function by disintegrating dead plants and animal remains.
