373 Answered Questions for the topic physics C

03/03/21

What kinetic energy, 𝐸k , must the electrons have in order to resolve a protein molecule
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy ,𝐸k, must the electrons have in order to resolve a... more
Follows • 1
Expert Answers •1
Physics C Physics

03/02/21

The Raw Egg Drop Experiment Limits
When a raw egg is protected to cushion it for an "Egg Drop" challenge (typically in a middle school physical science curriculum), some teams may reason through to the optimal protection, an... more
Follows • 1
Expert Answers •1
Physics C Physics

03/02/21

Dynamics of Sliding Irregularly Shaped Objects - A Folded Pizza
A pizza is folded twice until it resembles a sector of 1/4 the pizza area. It lies on the pan with a vertex at the original center position of the pizza, and a curved edge at the position of the... more
Follows • 1
Expert Answers •1
Physics C Physics Physics B

02/27/21

A point charge of -3.0𝞵C is placed at the origin of coordinates. Find the electric field at the point x=5.0m on the x-axis.
A point charge of -3.0𝞵C is placed at the origin of coordinates. Find the electric field at the point x=5.0m on the x-axis.
Follows • 1
Expert Answers •1

02/22/21

Pendulum Physics

assuming the weight part of the pendulum has potential energy at the top and kinetic at the bottoma teacher with a mass of 90kg is swinging, he's acting as a pendulum, he is 2.5meters up a) what is... more
Follows • 2
Expert Answers •1

02/19/21

Can someone help me with this Physics problem?
A large insulating sphere of radius a carries a total positive charge Q with a uniform volume charge density. A very thin tunnel is drilled through a diameter of the sphere and two small spheres... more
Follows • 1
Expert Answers •1

02/17/21

physics question. please help!

An unstable nucleus of mass 1.7 ✕ 10−26 kg, initially at rest at the origin of a coordinate system, disintegrates into three particles. One particle, having a mass of m1 = 1.8 ✕ 10−27 kg, moves in... more
Follows • 1
Expert Answers •1

02/16/21

A block with mass m1 = 0.450 kg is released from rest on a frictionless track at a distance h1 = 2.85 m above the top of a table.
A block with mass m1 = 0.450 kg is released from rest on a frictionless track at a distance h1 = 2.85 m above the top of a table. It then collides elastically with an object having... more
Follows • 3
Expert Answers •1

02/16/21

An unstable nucleus of mass 1.7 ✕ 10−26 kg, initially at rest at the origin of a coordinate system, disintegrates into three particles.

An unstable nucleus of mass 1.7 ✕ 10−26 kg, initially at rest at the origin of a coordinate system, disintegrates into three particles. One particle, having a mass of m1 = 1.8 ✕ 10−27 kg, moves in... more
Follows • 2
Expert Answers •1

02/15/21

Energy and work problem
A 40 kg body starting from rest falls through a vertical distance of 0.25m to the ground, using energy methods,a) determine its kinetic energy just before it hits the ground,b) determine its... more
Follows • 2
Expert Answers •1
Physics C Physics Physics B

02/10/21

UCM physics helpp plz
1. A runner completes 8 laps around a circular track in 480 s.a. What is the period?b. What is the frequency?2. A pendulum completes one cycle in 0.2 s.a. What is the frequency?b. How much time... more
Follows • 1
Expert Answers •1
Physics C Science Physics Sat

02/10/21

PHYSICS LEVER/IMA
Create a class 1 lever with the fulcrum at 50cm mark, have the weight at 100cm mark, and the effort force at 0 cm. 4a)What is the mechanical advantage of the lever4b)move the fulcrum to 60cm what... more
Follows • 1
Expert Answers •1
Physics C Physics Physics B

02/09/21

Please Help!!! A spring force is given by the formula F=2x-15x^2, where F is in N and x is in m. What is the change in potential energy wen the spring is stretched 1m from it's equilibrium position.
A spring force is given by the formula F=2x-15x2, where F is in N and x is in m. What is the change in potential energy wen the spring is stretched 1m from it's equilibrium position.
Follows • 1
Expert Answers •2
Physics C Physics

02/09/21

I know the answer for this question is 19, but I don't know if it is in the positive or negative x-direction.
What is the force on a particle at x=2m given the potential energy as the function U(x)=6x2-5x+4? Ans: 19....?
Follows • 1
Expert Answers •1
Physics C

02/08/21

Ice at 0oC is placed in a pan that is at room temperature. Which of the following best describe the heat flow and temperature changed for the ice-pot system?
Follows • 1
Expert Answers •1
Physics C Physics Physics B

02/07/21

A weight suspended from an ideal spring oscillates up and down. If the weight is increasing, the period is

A weight suspended from an ideal spring oscillates up and down. If the weight is increasing, the period is a) remaining the same (b) increasing (c) decreasing (d) 0 (e) none of these Explain your... more
Follows • 1
Expert Answers •1
Physics C Physics Physics B

02/07/21

The stick is then set into motion. The period of the motion is __________
A meter stick is pinned at a point halfway between one end and the center of mass. The moment of inertia of this stick about its center is 1 2 cm 12 I mL = , where L is the length of the stick. The... more
Follows • 1
Expert Answers •1

02/04/21

If you want to put a satellite into a geostationary orbit, meaning that it stays above the same position over the Earth at all times, at what altitude (above sea level) must you have it orbiting?
Follows • 2
Expert Answers •1
Physics C

02/04/21

Physics homework
A 3.67 kg block initially at rest is pulled to theright along a horizontal surface by a constant,horizontal force of 14 N. The coefficient ofkinetic friction is 0.131.The acceleration of gravity is... more
Follows • 1
Expert Answers •1

02/02/21

AP Physics 1 Question involving KE and Momentum

An object has a kinetic energy of 277 J and a momentum of magnitude 28.4 kg · m/s.(a) Find the speed of the object.(b) Find the mass of the object.
Follows • 1
Expert Answers •1
Physics C Math Calculus Physics

01/31/21

Particle movement: total distance
A particle moves along the x-axis so that at time t>=0  its position is given by x(t)=(2t^3)-(9t^2)-60t+4. What is the total distance traveled by the particle over the time... more
Follows • 1
Expert Answers •2
Physics C Physics Physics B

01/27/21

Venus has a mass of about 0.0558 times the mass of Earth and a diameter of about 0.381 times the diameter of Earth. The acceleration of a body falling near the surface of Venus is about:

Venus has a mass of about 0.0558 times the mass of Earth and a diameter of about 0.381 times the diameter of Earth. The acceleration of a body falling near the surface of Venus is about: (a) 0.21... more
Follows • 1
Expert Answers •1
Physics C Physics Physics B

01/27/21

The speed of the object just before it hits the earth, in terms of G, M, and R is __________

An object is dropped from an altitude of one earth radius above the earth’s surface. Neglect air resistance. Let M = the mass of the earth and R = the radius of the earth. The speed of the object... more
Follows • 1
Expert Answers •1
Physics C Physics Physics B

01/25/21

Given that the gravitational potential energy near the surface of the earth is given by U_g=mgh, find the gravitational force.
Given that the gravitational potential energy near the surface of the earth is given by U_g=mgh, find the gravitational force.I solved this question by taking the formula for gravitational... more
Follows • 1
Expert Answers •1

01/20/21

How do I approach this work in multiple dimensions question?
The path of a particle is described by the position vector vec r =<3t, t^ 2 ,-t> . The particle experiences a force which varies as a function of the particle's position, described by the... more
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.