01/22/21

Physics Question on Force
Hello, if someone may solve all this please with the steps on each problem that would be great. I'm having problems figuring this out. URGENT
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01/22/21

Maxima and Minima
For any real number x there is a unique integer n such that n≤x<n+1, and the greatest integer function is defined as ⌊x⌋=n. Where are the critical values of the greatest integer function? Which... more
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01/21/21

How do I answer these physics questions and what answer should I get?
A 0.5 kg ball that is tied to the end of a 1.5 m light string is revolved in a horizontal plane, withthe string making a 30 o angle with the vertical.(a) Draw the free-body diagram for a conical... more
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01/21/21

How do I answer these physics questions and what answer should I get?
You want to design the automobile racing circuit in Los Angeles to attract tourists to boosteconomy during Spring. First, you design the banked road for the racing cars to speed at 100mphfor a... more
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01/21/21

Use the graph of the polynomial shown below to determine the remainder when divided by the following. 1) (x+1) 2) (x+2) 3) (x-1)
i couldn’t add the picture so here’s a link to it: https://drive.google.com/file/d/1qbWw_88iXQOM7VpcBbJju4FcH8NUmZNw/view?usp=drivesdk
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01/21/21

A 7.50 kg bowling ball moving 6.42 m/s strikes a 1.60 kg bowling pin at rest. After, the pin moves 14.8 m/s at a -47.0° angle. What is the y-component of the ball's final velocity?
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01/20/21

Centripetal Acceleration
1: NASA uses large centrifuge to study the effects of large forces on astronauts prior to their going into space. A subject in the 20-G centrifuge, which has a radius of 8.9 m, can have a... more
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01/20/21

calculus question
Which of the following differential equations is consistent with the following slope field? (5 points)
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01/20/21

Find the particular solution to y " = 2sin(x) given the general solution y = -2sin(x) + Ax + B and the initial conditions y of pi over 2 equals 0 and y prime of pi over 2 equals negative 2
Find the particular solution to y " = 2sin(x) given the general solution y = -2sin(x) + Ax + B and the initial conditions  and   A -2sin(x) + 2 B -2sin(x) - 2x + π + 2 C -2sin(x) - 2x +... more
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01/20/21

Calculus Help Needed!
1. A tube is being stretched while maintaining its cylindrical shape. The height is increasing at the rate of 2 millimeters per second. At the instant that the radius of the tube is 6 millimeters,... more
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01/19/21

Angular Kinematics
Hello, I am struggling in my science class and I'm not sure how to do the unit we are on so I was wondering if someone could give me the answers and how to solve them so I can do better. Thank you!... more
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01/19/21

Let L represent length, T represent time, and M represent mass. Suppose the physical quantities A, B, and C are related by A = BC, where A has the dimensions L/M, and C has the dimensions L/T.

Then B must have the dimensions:A. M/L2TB. T/MC. L2T/MD. L2/TME. TM/L2I tried to approach this problem as: a= bc therefore (length/mass) = (?/?)(length/time)i figured that the answer could possibly... more
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01/18/21

If a book is resting on a table, Earth exerts a force on the book and the book exerts an equal force on Earth. Is this a Newton's third law pair?
If a book is resting on a table, Earth exerts a force on the book and the book exerts an equal force on Earth. Is this a Newton's third law pair?There is a normal force and the force of Earth but... more
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01/18/21

an airplane has a volume of 124 m^3. how much buoyant force does the air exert on it? assume the air density remains 1.29 kg/m^3.
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01/18/21

Stumped for hours on this rotational and spring motion question.
A 2-kg disc moves in uniform circular motion on a frictionless horizontal table, attached to the point of rotation by a 10-cm spring with a spring constant of 50N/m. When stationary, the spring has... more
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01/17/21

AVERAGE VELOCITY FORMULA
We sometimes calculate average velocity as follows v1+v2/2 i.e addition of all velocities divided by number of velocities. In the denominator, do we divide it by total time or the number of... more
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01/15/21

please help!!!!

1) on the figure below draw the free body diagram for ...A) a box being push across a table with friction and a positive acceleration to the rightb) on the figure below draw the free body diagram... more
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01/15/21

APCSA Java Questions
Which of the following statements is most accurate? Explain.   A. A reference variable is an object.  B. A reference variable refers to an object.  C. An object may contain other objects.  D. An... more
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01/15/21

Question of Physics
A uniform rod of mass M and length l is pivoted at point P, which isl/4 away from the left end. The rod is released from rest (g isthe gravitational acceleration). Find a) the angular acceleration... more
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01/15/21

Question of Physics
A particle of mass m is moving in a circular path of radius R. The angular speed of the particle is given by ω = βt3/2. Find the tangential and the radial (centripetal) forces acting on the... more
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01/15/21

Question of Physics
A thin rod of length l has a non-uniform mass distribution. The linear mass density λ is given by λ = Ax where A is a positive constant.Find the moment of inertia of the roda) about an axis passing... more
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01/15/21

Question of Physics
A thin rod of length l has a non-uniform mass distribution. The linear mass density λ is given by λ = Ax where A is a positiveconstant. Find the moment of inertia of the rod about an axis passing... more
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01/15/21

Question of Physics
A particle of mass m=1kg has position vector r(t) given by r(t) = Ati+Bt2j+Ct3k (meters) where A;B, and C are constants. At t=1 second,finda) the torque,r, with respect to the origin, andb) the... more
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01/13/21

Need help with this problem
. Astronauts on a distant planet throw a rock straight upward and record its motion with a video camera. After digitizing their video, they produce the graph of height, y, versus time, t, shown... more
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01/13/21

Find the first 6 terms of the Fourier serie
Find the first 6 terms of the Fourier series of the periodic function 𝑓(𝑥) of period 𝑇 = 2𝜋 defined by: 𝑓(𝑥) = 𝑥 − 𝜋 < 𝑥 < 𝜋
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