Layla Ahmed
Physics teacher | Tutor for 7 years
I hold a degree in Physics from the University of San Diego. My passion lies in unraveling the mysteries of the universe and making complex concepts understandable to all. With a solid foundation in physics, I offer clear explanations and insightful guidance to students across various topics. Whether it's mechanics, electromagnetism, or quantum physics, I'm dedicated to fostering a deep understanding and appreciation for the wonders of the natural world. Let's explore the boundless possibilities of physics together and embark on a journey of discovery and enlightenment.
Questions
Which has greater kinetic energy a 2 kg mass moving at 3 m/s,or,a 1 kg mass moving at 6 m/s?
A 1000-watt microwave oven takes 60 seconds to heat a bowl of soup. How many joules of energy does it use?
A model train, with a mass of #15 kg#, is moving on a circular track with a radius of #6 m#. If the train's kinetic energy changes from #40 j# to #27 j#, by how much will the centripetal force applied by the tracks change by?
How much work does it take to raise a #7 kg # weight #23 m #?
What torque would have to be applied to a rod with a length of #4 m# and a mass of #4 kg# to change its horizontal spin by a frequency #7 Hz# over #1 s#?
How do you use Newton's first law of motion to explain what would happen to a rolling marble if no outside force, such as friction, acted on it?
What are some examples of simple harmonic motion?
An object with a mass of #14 kg# is acted on by two forces. The first is #F_1= < 5 N , 6 N># and the second is #F_2 = < -9 N, 4 N>#. What is the object's rate and direction of acceleration?
How are concave mirrors used in telescopes?
Some very hot rocks have a temperature of #420 ^o C# and a specific heat of #180 J/(Kg*K)#. The rocks are bathed in #6 L# of boiling water. If the heat of the rocks completely vaporizes the water, what is the minimum combined mass of the rocks?
An object with a mass of # 3 kg# is traveling in a circular path of a radius of #7 m#. If the object's angular velocity changes from # 3 Hz# to # 29 Hz# in #3 s#, what torque was applied to the object?
How much power is produced if a voltage of #8 V# is applied to a circuit with a resistance of #48 Omega#?
A box with an initial speed of #6 m/s# is moving up a ramp. The ramp has a kinetic friction coefficient of #3/4 # and an incline of #pi /8 #. How far along the ramp will the box go?
Going against the current, a boat takes 6 hours to make a 120-mile trip. When the boat travels with the current on the return trip, it takes 5 hours. What is the rate of the boat in still water?
If an object is moving at #10 m/s# over a surface with a kinetic friction coefficient of #u_k=2 /g#, how far will the object continue to move?
A ball with a mass of #420 g# is projected vertically by a spring loaded contraption. The spring in the contraption has a spring constant of #21 (kg)/s^2# and was compressed by #6/5 m# when the ball was released. How high will the ball go?
What is moment of force?
A 300g ball at rest is struck with a bat with a force of 150N. If the bat was in contact with the ball, for 0.02 seconds, what is the ball's velocity?
What are some examples of acceleration?
A container has a volume of #9 L# and holds #5 mol# of gas. If the container is compressed such that its new volume is #12 L#, how many moles of gas must be released to maintain a constant temperature and pressure?