11/14/22

green bead mass 25 g slides along straight wire length of the wire from A to B is 0.600 m, and point A is 0.200 m higher than point B . A constant friction force of magnitude 0.0250 N acts on the bead
(a) If the bead is released from rest at point A , what is its sp eed at point B ? (b) A red bead of mass 25 g slides along a curved wire, subject to a friction force with the same constant... more
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11/12/22

How strong must the magnetic field
A be‎am of ele‎ctrons (of charge qe and mass me) is s‎hot into a reg‎ion of unif‎orm magn‎etic fi‎eld with a spee‎d of 513[m/s]. Th‎ey exit the re‎gion o‎f uni‎form magn‎etic fi‎eld op‎posite the... more
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11/09/22

C++ Array of Bank accounts & Ask user to sort by name, id or balance.
C++ question: I have a BankAccount class that has private member variables, string name, string id, and int balance. I made an array of 5 Bank Account objects that stored different names, bank... more
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11/07/22

Find the equation of motion of a force of a spring
A spring with a spring constant k of 20 pounds per foot is loaded with a 10-pound weight and allowed to reach equilibrium. It is then displaced 1 foot downward and released. If the weight... more
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11/07/22

Write a program that first invites the user to input a natural number n. Then compute the nth number in the sequence (x subscript n) and display it appropriately to the user.
The sequence xn is defined, for n > 2, by the recursive formulaxn = 2xn - 1 + xn - 2 where x1 = 2 and x2 = 3.Write a program that first invites the user to input a natural number n. Then compute... more
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11/06/22

Physics ut onramps
This question is typical on some driver's license exams: A car moving at 44 km/h skids15 m with locked brakes.How far will the car skid with locked brakes at 110 km/h? Assume that energy loss is... more
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11/05/22

please help me ! :(
How high must the gauge pressure in a fire hose be if the fire hose is to spray water to a height of 21 m?   (The density of water is 1000 kg/m3)
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11/04/22

A toy car is on a bus floor (more information below)
the bus is going to the right when it comes to a stop the toy car with frictionless wheels then moves to the right at a steady speed.Choose One: there are significant equal and opposite forces... more
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11/04/22

if tana=-(√11)/5 and sinb= (2√10)/7 with pi/2 < a,b < pi find the value of cos(a+b)
the correct answer is (15-2√110)/42confused on how exactly to set up solving for this
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11/02/22

What is the shortest distance from the surface xy+12x+z^2=129 to the origin?
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11/01/22

Precalculus solving equations of sin and cos
Solve the equations.a) sin(2 theta)+sin(4 theta)=0b) 4(1+sin theta)=cos^2 theta
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10/30/22

finding mixed partials

Let f(x,y) be a differentiable function with continuous partials and mixed partials. Let x(u,v)=ucos(v), y(u,v)=usin(v). show that fxx + fyy = (1/u)fu+fuu+(1/u2)fvv.
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10/27/22

Evaluate the double integral by first identify it as the volume of a solid
∫∫R (4-2y)dA, R = [0, 1] x [0, 1]
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10/27/22

Find an equation of the tangent plane to the surface z = 3y^2 − 2x^2 + x at the point P(2, −1, −3).
Find an equation of the tangent plane to the surface z = 3y2 − 2x2 + x at the point P(2, −1, −3).
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10/24/22

i cant find the answer
A machinist wishes to insert a brass rod with a diameter of 7 mm into a hole with a diameter of 6.998 mm. By how much would the machinist have to lower the temperature (in °C) of the rod to make it... more
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10/24/22

Please help me !
A 15 kg hammer strikes a nail at a velocity of 8.5 m/s and comes to rest in 6.0 ms.a) What is the impulse given to the nail?  b) What is the average force acting on the nail?  Express answers using... more
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10/24/22

Rotational Equilibrium and Rotational Dynamics
You turned on your classroom ceiling fan at its lowest setting. You measured that the rotation is 250 rev/min. When adjusted to its maximum setting, the speed increases to 450 rev/min in 15 s. (a)... more
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10/24/22

Let f(x) = x^3+5x+12
a) Find (f^-1)'(18)c) Find the equation of the tangent line to the curve y = f^-1(x) when x=18
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10/21/22

calcus help ASAP
(1 point) For each of the following functions, find the maximum and minimum values of the function on the circular disk: 𝑥2+𝑦2≤1. Do this by looking at the level curves and... more
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10/20/22

Physic(s) Work Force of Particle
A particle moves in a straight line, parallel to the x axis, from xi to xf. It is acted upon by a force that is also parallel to the x axis and is given by f(x)= b/xA.Write an expression for the... more
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10/19/22

Given a positive integer n, greater than 1, assign True to is_prime if n has no factors other than 1 and itself. (Remember, m is a factor of n if m divides n evenly.)
Given a positive integer n, greater than 1, assign True to is_prime if n has no factors other than 1 and itself. (Remember, m is a factor of n if m divides n evenly.)Additional Notes: n should not... more
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10/19/22

A carousel with a 50-foot diameter makes 5 revolutions per minute.
A carousel with a 50-foot diameter makes 5 revolutions per minute. (a) Find the angular speed of the carousel in radians per minute. (Round your answer to two decimal places.)____radians per... more
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10/19/22

Please help me!
A vertical spring (ignore its mass), whose spring constant is 880 N/m, is attached to a table and is compressed down by 0.150 m. a) What upward speed can it give to a 0.340 kg ball when released?b)... more
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10/19/22

Please help me!
Does the net work done on a particle depend on the choice of reference frame? Explain why or why not.
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10/18/22

Let f be the function defined below, where k is a constant
f(x)= ( 2x^2+5x-3/x^2+4x+3 for x<-3 <(kx+1/2 for -3<x<0 (2^x/3^x-1 for x>0A. For what value of k, if any, is continuous at x=-3? Justify your answer. B. What type of... more
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