A simple pendulum of length 1.5m has a bob of mass of 2.0kg, then the period for the small oscillations would be 2.456 s.
<h3>What is the frequency?</h3>
It can be defined as the number of cycles completed per second. It is represented in hertz and inversely proportional to the wavelength.
The frequency of a pendulum is the reciprocal of the time period can be given by the following relation,
f = 1/T
As given in the problem A simple pendulum of length 1.5m has a bob of mass of 2.0kg.
The formula for the time period for the pendulum,
T = 2π√L/g
=2π√1.5/9.81
=2.456 s
Thus, the period for the small oscillations would be 2.456 s.
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Answer:
(c) in the barrel of the rifle
Explanation:
When we are moving in a convertible with constant speed so as per inertia all the objects are moving with same speed as that the speed of convertible.
So here we can say that bullet when shot from the rifle then its speed is same as that of convertible in horizontal direction
So here we can say that if air friction is absent then bullet will move same horizontal distance as the distance moved by you in the convertible
so after it it will reach again at the same position then the displacement of you and bullet is same in horizontal direction so we can say that correct answer will be
(c) in the barrel of the rifle
The answer is a) geothermal energy. I may be wrong, sorry!
As a substance is changing from a liquid to a gas, the distance between its molecules increases, and the temperature of the system remains the same.
Option A
<u>Explanation:</u>
The external energy required to change from one state to another is mostly considered as temperature. So on increase in temperature, the solid changes to liquid and the liquid changes to gases. But the temperature remains constant in the system after changing the phase.
This is because when the temperature is increased on a liquid system, the rise in temperature is utilized for breaking the bonds and thus the molecules will be distanced from each other. If we consider liquid - gas phase transition, the gas molecules are farther distanced compared to liquid molecules.
So the rise in temperature is utilized for breaking the bonds and also to provide the kinetic energy to the gas molecules as they are tend to move more freely compared to liquid. Thus, the distance between the molecules increases, and the temperature of the system remains the same on changing from liquid to gas.
Clues or evidence
Im pretty sure its evidence though
