01/29/22

body's initial speed amounts 72 km/h and it is gradually slowing down due to the friction. If the coefficient of friction amounts 0.5 what distance will the body cross before it stops? g=10 m/s2
Follows • 1
Expert Answers •1

01/14/22

How much time to evade a falling object? Free-fall word problem
A woman accidentally drops a flowerpot from the rooftop of a 25-meter building. A 1.5 meters tall man walking notices the falling flowerpot above him at about 4 meters above the ground. How much... more
Follows • 1
Expert Answers •3

01/09/22

Sketch the graph of an example of a function f that satisfies all of the given conditions.
limx->0- f(x)=2 limx->0+ f(x)=0limx->4-f(x)=3limx->4+f(x)=0f(0)=2f(4)=1
Follows • 2
Expert Answers •1

01/06/22

The question is about the radioactive decay for AP Physics 2 students.
What are alfa, beta and gamma particles. Why their penetration abilities are different?
Follows • 2
Expert Answers •6

01/04/22

Alcohol mixture problem
You need 390 mL of a 40% alcohol solution. On hand, you have a 10% alcohol mixture and a 75% alcohol mixture. How much of each mixture will you need to obtain the desired solution?
Follows • 1
Expert Answers •1

01/04/22

Wheel and Axle Question
A wheel and axle arrangement is used to raise a 150-kg load of bricks with a 140-newtom effort. If the axle's radius is 4.00 cm and the wheel's radius is 44.0 cm, calculate:a) Actual mechanical... more
Follows • 2
Expert Answers •1

01/03/22

Full question is in the description.
1. What is the fundamentalfrequency produced by avibrating air column 2.50 mlong and open at one end? Thespeed of sound is 344 m/s.2. What is the frequency of thefirst overtone that will beproduced... more
Follows • 1
Expert Answers •1

01/02/22

Will someone please help me with these Physics questions.

Which of the following best describes the momentum of two bodies after a two-body collision if the kinetic energy of the system is conserved?a. must be lessb. it will be doublec. must also be... more
Follows • 1
Expert Answers •3

01/01/22

Direction of instantaneous velocity question
The diagram shows a rock on the end of a string being whirled around in a circle in the horizontal plane. The motion is viewed from above and the stone is rotating clockwise. What are the... more
Follows • 1
Expert Answers •1

12/31/21

physics and mathematics
A force applied to a small ball with the mass m = 1(kg) is: F= y.ex-x.ey+z.ezThe ball follows the trajectory: r(t)= t.ex+ey-t.ezFind the work W produced by the force F along the given trajectory... more
Follows • 0
Expert Answers •1

12/31/21

Find the value of k so that the equation has (a) one solution, (b) two real solutions, (c) two imaginary solutions. x^2-2kx+k=0
Follows • 1
Expert Answers •1

12/29/21

If the heat needed to melt ice is used to heat up the same amount of liquid water how much will be the increase in temperature for the liquid water?
Follows • 1
Expert Answers •1

12/22/21

Without a starting velocity, a point-pike mass m is put at the edge of a semispherical shell with radius R. The deviation's initial angle is 90 degrees.
Without a starting velocity, a point-pike mass m is put at the edge of a semispherical shell with radius R. The deviation's initial angle is 90°. The mass oscillates, and after one period, we learn... more
Follows • 1
Expert Answers •1

12/22/21

F = y.ex – x.ey + z.ez is the force exerted to a tiny ball with mass m = 1 (kg). The trajectory of the ball is as follows: t.ex + ey – t.ez = r(t).
F = y.ex – x.ey + z.ez is the force exerted to a tiny ball with mass m = 1 (kg). The trajectory of the ball is as follows: t.ex + ey – t.ez = r(t).a) For the first 10 seconds, calculate the work W... more
Follows • 1
Expert Answers •1

12/22/21

The net force F = 4t.ex + 2.ey is acting on a body with mass m = 1 (kg) that is moving
The net force F = 4tex + 2ey is acting on a body with mass m = 1 (kg) that is moving. v(0) = 0 is the initial velocity. Find the kinetic energy of the body K(t) as a function of time and the body's... more
Follows • 1
Expert Answers •1

12/22/21

Express the quantity as a finite integral
lim (1/n)Σ(k/n)3 as n tends to infinity and where k from 1 to n.
Follows • 1
Expert Answers •2

12/20/21

The rim of a disk with a moment of inertia of 10kg.m^2 and a radius of 0.5m is constantly affected by a force...
The rim of a disk with a moment of inertia of 10kg.m^2 and a radius of 0.5m is constantly affected by a force of magnitude F= 2t+ t^2 (F, in Newton, t in seconds) in the tangential direction.If the... more
Follows • 3
Expert Answers •1

12/20/21

Let f : R → R be a continuous function that is convex on (-infinity, 0] and [0, ∞) and has a local maximum at the point 0. Prove that the function f is not differentiable at the point 0.
Follows • 1
Expert Answers •1

12/19/21

A light rod of length L and a little weight of mass m make up the pendulum.
A light rod of length L and a little weight of mass m make up the pendulum. In a vertical plane, the rod can complete a full rotation. The weight is initially in the bottom equilibrium position. A... more
Follows • 1
Expert Answers •1

12/19/21

the force required to lift the cubes into the air
On the horizontal table, there are ten identical little cubes in a row.The cubes are not bonded together in any way. Squeeze the entire chain with the two outermost cubes in your palms. Which force... more
Follows • 2
Expert Answers •1

12/16/21

physics planetary motion

On the Apollo missions to the Moon, the command module orbited constantly at an altitude of 110 km above the lunar surface. How much time did it take for the command module to complete one orbit?
Follows • 1
Expert Answers •1

12/16/21

A 10.0 kg block of wood is shot up an inclined ramp
A 10.0 kg block of wood is shot up an inclined ramp (from the bottom) by a spring which gives the block an initial velocity of 6.40 m/s up the ramp. The angle of the ramp is 30o. The coefficient of... more
Follows • 1
Expert Answers •1

12/16/21

Circular motion
A plane is driving in a circular loop with Radius 1km. In the top(plane is upside down) and the bottom, plane drives with a constant speed of 540km/h. Find the weight of the pilot at the top and at... more
Follows • 2
Expert Answers •2

12/15/21

Pulley multiple choice question
Two masses m1 and m2 are attached to opposite ends of a cord placed around a pulley as shown. There is no friction between the pulley and it's axle, but there is friction between the string and the... more
Follows • 1
Expert Answers •1

12/15/21

Ferris wheel problem
the lowest point of a ferris wheel is 2.5 meters off the ground, and it's radius is 15 m. It's takes one complete revolution every 30 seconds. Starting at the lowest point, find a cosine function... 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.