Answer:
a) 
b) 
Explanation:
The law of conservation of mechanical energy states that total mechanical energy remains constant during oscillation. Mechanical energy is defined as the sum of kinetic energy and potential energy:
a) The position is one-third the amplitude. So, we have 
. Replacing and solving for K
b) The potential energy is defined as:
Replacing:
Answer:
Resistance = 1728.57 Ohms
Explanation:
Given the following data;
Power = 7 Watts
Voltage = 110 Volts
To find the resistance of each bulb;
Mathematically, power can be calculated using the formula;
Making resistance the subject of formula, we have;
Substituting into the formula, we have;
Resistance = 1728.57 Ohms
Answer: 5 m/s^2
Explanation: In order to solve this question we have to use the kinematic equation given by:
Vf= Vo+a*t where V0 is zero.
we know that it takes Vf( 30 m/s) in 6 seconds
so
a=(30 m/s)/6 s= 5 m/s^2
White objects do not absorb all wavelenghts. The statement is false
