Answers created by Pablocito

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How a pure intrinsic semiconductor can be transformed into n-type and p-type semiconductor?
A truck driving along a highway road and has a large quantity of momentum. A car with half the mass but twice the speed would have?
What is the distance between two students (their radius) if they each weigh 110kg and 48kg and the force of attraction between them was 8.44 x 10^-7 N?
How do you evaluate $arcsin (\frac{\sqrt{3}}{2})$ $arcsin(sqrt 3/2)$ ?
The angle of projection for which maximum height is equal to the range covered will be? a)76 deg. b)tan-4. c)both
In refractive index of glass slab if angle of incidence to normal is 20 then the angle of reflection and angle of emergence is 30 is it the right answer???
Do large damping force on a body means large change in amplitude why?
Question #e1b17
Solve for $x, y and z$ $x,y and z$ given that: $2 x - y + 2 z = - 7; d - x + 2 y - 4 z = 5; d x + 4 y - 6 z = - 1 ?$ $2x-y+2z=-7 ;color(white)("d") -x+2y-4z=5 ;color(white)("d")x+4y-6z=-1 ?$
Question #a5103
Question #89cdd
How do you solve the following system?: $- x - 5 y = 3, x - 16 y = - 42$ $-x -5y =3, x -16y = -42$
How do you solve using the completing the square method $0 = x^{2} - 3 x - 6$ $0=x^2-3x-6$ ?
How do you write a slope-intercept equation for a line perpendicular to 3x + y - 2 = 0 with point (2,1)?
How do you find the roots, real and imaginary, of $y = - 3 x^{2} - 4 x + {(2 x - 1)}^{2}$ $y= -3x^2-4x+(2x- 1 )^2$ using the quadratic formula?
Question #268d6
Question #7c4fd
Integral of [x/(3-x)^1/2]?
How do you evaluate $\int sin (x^{2}) d x$ $int sin(x^2)dx$ from -1 to 2?
Question #9db31
A triangle has two corners with angles of $\frac{π}{12}$ $pi / 12$ and $\frac{π}{12}$ $pi / 12$ . If one side of the triangle has a length of $2$ $2$ , what is the largest possible area of the triangle?
Question #ffc86
How do you evaluate $f (x) = - {(2)}^{x} + 3$ $f(x) = -(2)^x+3$ for $f (4)$ $f(4)$ ?
How do you find the focus, vertex, and directrix of $x^{2} + 10 x + 4 y + 33 = 0$ $x^2+10x+4y+33=0$ ?
How do you solve $\frac{1}{sin y - 1} - \frac{1}{sin y + 1} = - sec y$ $\frac { 1} { \sin y - 1} - \frac { 1} { \sin y + 1} = - \sec y$ ?
How to solve this ? Find a and b ?
If $\frac{3}{2 x} + \frac{1}{5} = 0,$ $\frac { 3} { 2x } + \frac { 1} { 5} = 0,$ what is the value of x?
How do you find the vertex and intercepts for $x = \frac{1}{- 32} y^{2}$ $x = 1/-32y^2$ ?
Question #8a8fa
A train leaves a station and travels north at a speed of 75 mph. Two hours later, a second train leaves on a parallel track and travels north at 105 mph. How far from the station will they meet?
Why is it difficult to use the law of conservation of energy to calculate the effects of a collision?
How would you determine the potential difference between two charged parallel plates that are 0.20 cm apart and have an electric field strength of 6.0 V/cm?
Question #87c39
A spring is hung vertically. It is loaded with 50 g mass and allowed to oscillate. Calculate the frequency of oscillation when the spring is loaded with 150 g which exceeds 100m?
Question #7e46d
An object is at rest at $(7, 6, 4)$ $(7 ,6 ,4 )$ and constantly accelerates at a rate of $\frac{7}{4} \frac{m}{s^{2}}$ $7/4 m/s^2$ as it moves to point B. If point B is at $(5, 5, 7)$ $(5 ,5 ,7 )$ , how long will it take for the object to reach point B? Assume that all coordinates are in meters.
A block of mass 5 kg is moving horizontally at a speed of 1.5m/s. a perpendicular force of 5N acts on it for 4sec. what will be the displacement of the block from the point when the force start acting?
How do you find the derivative of $\frac{1}{2 \cdot \sqrt{x + 1}}$ $1 / (2*sqrt(x+1))$ ?
How do you use the chain rule to differentiate $f (x) = ln (cos x)$ $f(x)=ln(cosx)$ ?
What is the vertex form of $y = - x^{2} + 13 x + 1$ $y=-x^2+13x+1$ ?
An object with a mass of $8 k g$ $8 kg$ is on a plane with an incline of $\frac{π}{12}$ $pi/12$ . If the object is being pushed up the plane with $8 N$ $8 N$ of force, what is the net force on the object?
Question #f624c
Why is resonance important in musical instruments?
How do you find the LCD for $\frac{- 11}{20}$ $\frac { - 11} { 20}$ and $\frac{13}{50}$ $\frac { 13} { 50}$ ?
How do you solve $9 s + 14 = - 22 ?$ $9s + 14= - 22?$
Why is a model made to be simpler than the thing that it represents?
How do you graph $f (x) = | x - 2 | + 2$ $f(x)= |x-2|+2$ ?
Question #aaeb4
An object with a mass of $6 k g$ $6 kg$ is on a plane with an incline of $\frac{π}{12}$ $pi/12$ . If the object is being pushed up the plane with $2 N$ $2N$ of force, what is the net force on the object?
Question #a4fd4
What are the two types of frictional forces that act to prevent or slow motion?
Question #65db0
Question #380f3
Question #346dd
What is the equation of the parabola with a focus at (-2, 6) and a vertex at (-2, 9)?
How do you find the second derivative of $y = - \frac{5}{x + 1}$ $y=-5/(x+1)$ ?
What is $\int \frac{1}{x^{2} + 5}$ $int1/(x^2+5)$ ?
Find average friction?
An object with a mass of $6 k g$ $6 kg$ is on a plane with an incline of $- \frac{π}{4}$ $- pi/4$ . If it takes $24 N$ $24 N$ to start pushing the object down the plane and $9 N$ $9 N$ to keep pushing it, what are the coefficients of static and kinetic friction?
How can an object have a negative acceleration while speeding up and a positive acceleration while slowing down? Please explain using easy terms, I do not understand the way my textbook explains it.
How can an object have a negative acceleration while speeding up and a positive acceleration while slowing down? Please explain using easy terms, I do not understand the way my textbook explains it.
How can an object have a negative acceleration while speeding up and a positive acceleration while slowing down? Please explain using easy terms, I do not understand the way my textbook explains it.
How can an object have a negative acceleration while speeding up and a positive acceleration while slowing down? Please explain using easy terms, I do not understand the way my textbook explains it.
Question #50d12
An adult lion standing in Las Vegas has a mass of 210 kg. How much force is exerted downward on the lion by gravity (i.e., the weight)? How much normal force pushes up on the lion?
How can an object have a negative acceleration while speeding up and a positive acceleration while slowing down? Please explain using easy terms, I do not understand the way my textbook explains it.
Question #19739