Answer:
A. models
they look at it make a model study the model.
Given:
u= 0.91 m/s
a=0.31m/s∧2
s= 0.61 m
s = ut +1/2(at∧2)
where s is the displacement of the object
u is the initial velocity
t is the time
a is the acceleration
Substituting the values
0.61=0.91×t +(0.31 ×t∧2)/2
0.61=0.91 t + 0.155 t∧2
t=0.61 secs
Consider the equation
<u>v=u +at
</u>
where v is the initial velocity
u is the initial velocity
a is the acceleration
t is the time
Substituting the values we get
v= 0.91 +(0.31×0.61)
v= 1.099 m/s
Answer:
Zero
Explanation:
Since momentum is a product of mass and velocity of an object, in this case when the object stops its final velocity is zero hence despite the magnitude of its mass, multiplied by zero the final momentum is equivalent to zero. However, in case after experiencing momentum its velocity reduces but doesn’t come to a rest, the momentum will have a value. For this question, the first case applies hence momentum value is zero.
The effects of nuclear power plants are much less harmful to the environment than that of coal-fired stations due to greenhouse gasses emitted by coal-powered stations.
<h3>What are the differences between these types of power?</h3>
Nuclear power plants will last much longer than that of coal-fired stations given that the coal-powered plants rely on a finite natural resource. Nuclear power plants are also much safer and cleaner for the environment <u>if handled and cared for correctly</u>. This is due to the large amounts of greenhouse gasses emitted by coal burning.
Therefore, we can confirm that nuclear power plants are much less harmful to the environment than coal-fired stations due to greenhouse gasses emitted by coal-powered stations.
To learn more about nuclear power visit:
brainly.com/question/9859575?referrer=searchResults
By using the Plancks-Einstein equation, we can find the energy;
E = hf
where h is the plancks constant = 6.63 x 10⁻³⁴
f = frequency = 3.55 x 10¹⁷hz
E = (6.63 x 10⁻³⁴) x (3.55 x 10¹⁷)
E = 2.354 x 10⁻¹⁶J
