10/05/23

Need help finding maximum force
 A 3 kg box is sitting atop a 4 kg box on level ground. You begin pushing horizontally on the bottom 4 kg box to start the stack moving. The coefficients of friction between also surfaces... more
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10/05/23

A Kite 60 feet above the ground moves horizontally at a speed of 7 ft/s. At what rate is the angle between the string and the ground decreasing when 120 feet of string is out?
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10/05/23

A car of mass 1200kg slows down from a speed of 20 m/s to 10 m/s how much kinetic energy does the car lose
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10/04/23

Select all the statements that accurately complete the sentence about the continuity of the following function.
Select all the statements that accurately complete the sentence about the continuity of the following function.ƒ(x) = {cos x if x < 0} ex. if x ≥ 0The function ƒ.....? is continuous... more
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10/02/23

Apparent Weight, Centripetal Force question
An elementary student of mass m = 28 kg is swinging on a swing. The length from the upper bar of the swing set to the seat is L= 4.2 m. The child is attempting to swing all the way around in a full... more
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10/02/23

find all complex solutions (real and non-real).
9x3 − 17x2 + 88x + 10 = 0
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09/30/23

find the magnetic field at a distance r from an infinite wire
find the magnetic field at a distance r from an infinite wire through which a stationary current passes I. Then find the magnetic vector potential
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09/23/23

Modern Physics - Problem Set
7. What should be the time and place of events 1 and 2 as observed from a rocket frame moving at a velocity 0.92c relative to the lab frame? 8. In a space bus a bullet shoots forward with a speed... more
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09/22/23

Suppose that 𝑎 is a fixed number, and consider the function  𝑔(𝑥)=sin(𝑥−𝑎)+cos(𝑥+𝑎) 
Suppose that 𝑎 is a fixed number, and consider the function  𝑔(𝑥)=sin(𝑥−𝑎)+cos(𝑥+𝑎) Answer the following questions. Show and explain your work.(a) If 𝑎≠𝜋/4 what is the period of the function 𝑔(𝑥)?... more
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09/19/23

Physics 1 homework question
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a typical strike, the chameleon's tongue accelerates at a remarkable 220 m/s2 for 20 ms , then... more
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09/18/23

2.2 sections of work
Describe the end behavior of the polynomial functions f1.) f(x) = 4x4 + 2x3 =12.) f(x) = (x+2)2 (2x-1)
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09/18/23

How lorentz transformations work.
It's the correct transformation for going from one frame to another i mean moving frame
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09/18/23

Does Kinetic Energy increase or decrease with mass ?
In an expression for Kinetic energy KE=(mv^2)/2 KE is directly proportional to mass. On the other hand, using linear momentum p=mv, expression for KE becomes KE=p2/(2m) which is inversely... more
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09/18/23

3.1 sections of work
Find the Functions of the form F(x) = cax that contain two given graphs: Please provide a video or explain it to me how you gotten the answer?1.) (0,1), (2,16) ---------------> Answer: 4x2.)... more
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09/18/23

Evaluate the limit - Answer is -1/9 But I Don't Know How to Get It

lim (1/a-1/3) /a-3a(->)3
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09/07/23

In Exercises 7–12, one of sin x, cos x, and tan x is given. Find the other two if x lies in the specified interval. cos x =-5/13 , x∊ [pi/2 , pi]
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09/06/23

Electric forces
Given the arrangement of charged particles in the figure below, find the net electrostatic force on the q2 = 14.33-µC charged particle. (Assume q1 = 5.15 µC and q3 = −25.18 µC. Express your answer... more
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09/06/23

A marathon runner completes a 42.188 km course in 2 h, 29 min, and 21 s. There is an uncertainty of 23 m in the distance traveled and an uncertainty of 1 s in the elapsed time.
A marathon runner completes a 42.188 km course in 2 h, 29 min, and 21 s. There is an uncertainty of 23 m in the distance traveled and an uncertainty of 1 s in the elapsed time. (Give all answers to... more
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09/02/23

basic integrals
A stone is thrown from the top of a tall cliff. Its acceleration is a constant​ (-32) ft/sec2  ​(So A(t)​ = -32). Its velocity after 2 seconds is (27) ft/sec​, and its height after 2 seconds is 214... more
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02/08/21

Which type of function is shown in the table below?
x f(x) 1 0 2 -3 3 -4 4 -3 2 0 a. not a function b.Linearc.Quadratic ... more
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08/11/14

maths help
The spider web consists of four straight threads each of length 2 metres.They intersect to form a square of side length 1 metre, with 0.5 metres protruding at either end.What is the largest number... more
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