# 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

A circuit with a resistance of #7 Omega# has a fuse melts at #6 A#. Can a voltage of #49 V# be applied to the circuit without blowing the fuse?

The gas inside of a container exerts #32 Pa# of pressure and is at a temperature of #50 ^o K#. If the temperature of the gas changes to #90 ^oK# with no change in the container's volume, what is the new pressure of the gas?

An object with a mass of #50 g# is dropped into #450 mL# of water. If the object cools by #25 ^@C# and the water warms by #10 ^@C#, what is the specific heat of the material that the object is made of?

A solid disk, spinning counter-clockwise, has a mass of #6 kg# and a radius of #2 m#. If a point on the edge of the disk is moving at #1/3 m/s# in the direction perpendicular to the disk's radius, what is the disk's angular momentum and velocity?

A solid disk, spinning counter-clockwise, has a mass of #15 kg# and a radius of #4 m#. If a point on the edge of the disk is moving at #7 m/s# in the direction perpendicular to the disk's radius, what is the disk's angular momentum and velocity?

A box with an initial speed of #7 m/s# is moving up a ramp. The ramp has a kinetic friction coefficient of #8/5 # and an incline of #pi /8 #. How far along the ramp will the box go?

If a spring has a constant of #4 (kg)/s^2#, how much work will it take to extend the spring by #3 cm #?

If you push on a wall with a force of 30 Newtons, what is the force acting on you?

In a TV set, an electron beam moves with horizontal velocity of 4.2 × 107 m/s across the cathode ray tube and strikes the screen, 41 cm away. The acceleration of gravity is 9.8 m/s How far does the electron beam fall while traversing this distance (in m)?

A ball with a mass of #12# #kg# moving at #8# #ms^-1# hits a still ball with a mass of #20# #kg#. If the first ball stops moving, how fast is the second ball moving? How much kinetic energy was lost as heat in the collision?

I stand 68 cm from my dresser mirror, inspecting my scalp. How far is the image of my scalp located from my scalp?

What is the work for the free expansion of a gas into vacuum?

An object with a mass of #9 kg# is acted on by two forces. The first is #F_1= < -7 N , 1 N># and the second is #F_2 = < 4 N, -5 N>#. What is the objects rate and direction of acceleration?

A jeep chases a thief with a constant velocity #v#. When the jeep is at distance d from the thief, he starts to run with a constant acceleration #a#. Show that the police will be able to catch the thief when #v >= sqrt(2ad)#?

The position of an object moving along a line is given by #p(t) = t - tsin(( pi )/4t) #. What is the speed of the object at #t = 5 #?

How much work would it take to horizontally accelerate an object with a mass of #8 kg# to #7 m/s# on a surface with a kinetic friction coefficient of #9 #?

A 5.7 diameter horizontal pipe gradually narrows to 3.6 cm. The the water flows through this pipe at certain rate, the gauge pressure in these two sections is 32.5 kPa and 24.0 kPa, respectively. What is the volume of rate of flow?

An object with a mass of #5 kg# is pushed along a linear path with a kinetic friction coefficient of #u_k(x)= xe^x-x #. How much work would it take to move the object over #x in [1, 4], where x is in meters?

An object with a mass of #90 g# is dropped into #500 mL# of water at #0^@C#. If the object cools by #30 ^@C# and the water warms by #5 ^@C#, what is the specific heat of the material that the object is made of?

A box with an initial speed of #1 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?