The density of ice is 0.92 g/cm 3 . An ice sculptor orders a one cubic meter block of ice. What is the mass of the block? Hint:
1 answer:
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Answer:
<h2>6 s</h2>Explanation:
The time taken by the cyclist can be found by using the formula
v is the velocity
d is the distance
From the question we have
We have the final answer as
<h3>6 s</h3>Hope this helps you
Answer:
Induced emf,
Explanation:
Given that,
Length of the helicopter, l = 4 m
Angular speed of the helicopter,
The vertical component of the Earth’s magnetic field is,
We need to find the induced emf between the tip of a blade and the hub. The induced emf in terms of angular velocity of an rotating object is given by :
So, the induced emf between the tip of a blade and the hub is . Hence, this is the required solution.
Explanation:
Given that,
Work done to stretch the spring, W = 130 J
Distance, x = 0.1 m
(a) We know that work done in stretching the spring is as follows :
(b) If additional distance is 0.1 m i.e. x = 0.1 + 0.1 = 0.2 m
So,
So, the new work is more than 130 J.