07/20/24

One particle has a mass of 4.06x10^-3 kg
One particle has a mass of 4.06 x 10^-3 kg and a charge of +6.27 uC. A second particle has a mass of 7.71 x 10^-3 kg and the same charge. The two particles are initially held in place and then... more
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07/20/24

Physics homework help
Two identical point charges (q=+9.80 x 10^-6 C) are fixed at opposite corners of a square whose sides have a length of 0.450 m. A test charge (q0= -7.90 x 10^-8 C), with a mass of 8.40 x 10^-8 kg,... more
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07/05/24

Finding the stationary points of a given function
If given f(x) = x3ex,a) How can I find coordinates of the stationary point(s) of f(x)b) How can I determine the nature of the stationary point of f(x).c) On what interval is the function f(x)... more
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07/05/24

Area under the curve problem using trig
Use left and right endpoints and the given number of rectangles to find two approximations of the area of the region between the graph of the function and the x-axis over the given interval. (Round... more
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07/04/24

Simple kinematics in 2D

An object is under a motion with velocity v as function of distance V=(x^2+10x+3). What will be the velocity as function of time for same object following the same motion??
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06/22/24

Arc length of the curve
Find the arc length of the curve on the interval. r(t) =  t2 + 1, 8t3 + 7 , −1 ≤ t ≤ 0
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06/21/24

Wait, so does an object itself actually physically do something when light is reflected or refracted on the item to show the item color? Like for instance a red ball?

Wait, so does the object itself actually physically do something when light is reflected or refracted on the item to show the item color? Like for instance a red ball? Is the object itself... more
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06/16/24

Where do you place the pivot?
 You are given a 2 m plank with a uniform mass of 10 kg. On one end of the plank, a 25 kg mass is being placed, i.e. the center of the mass is assumed to be at the end of the plank. On the other... more
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06/16/24

Determine the velocity of the block after the collision.
A spring with a spring constant of 150N/m is compressed by a distance of 5 cm. A ball of mass 0.50 kg is placed at the end of the spring, and the spring is released and collides with the ball. The... more
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06/16/24

determine the velocity

one car with a mass of 1500kg is going north at a speed of 25m/s. The car collides with a second car with a mass of 2000kg going west. The cars collide and stick together and have a vector of... more
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08/20/20

Write a formula for F o g o h, where f(x) =x+5, g(x) =4x, and h(x)= 2+x
Calculus 1, need help please answer!
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08/01/18

Determine the factors of 3x2 + 10x − 8. (1 point)
 this hi  h  h   h     gi i i ii i i i i i i ii i i i i ii i i i i ii  ii i i i i i i i i i 
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08/01/18

Calculus Problems
A particle moves on the x-axis so that its position at time t is S(t) = (t2 - t)/ (t-1). at what values(s) of t the velocity is Zero? 
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07/31/18

Hikers at the bottom of a canyon are facing towards the canyon wall 280.5 meters away. Given that the speed of sound in air is....
Hikers at the bottom of a canyon are facing towards the canyon wall 280.5 meters away. Given that the speed of sound in air is 340 m/s, how long after they should will they hear their echo?
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07/31/18

What were the wind velocity and speed of the plane?
A small plane flew 808 808 miles in 4 4 hours with the wind. Then on the return trip, flying against the wind, it traveled only 416 416 miles in 4 4 hours. What were the wind velocity and the speed... more
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07/28/18

Find the Area (polar)
Find the area that is outside r = 2 but inside r = 4 cos θ.Type your answer in the space below and give 3 decimal places. If your answer is less than 1, place a leading "0" before the decimal point... more
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08/30/16

I have no clue where to start on this problem for my college math
You read online that a 15ft by 20ft brick patio would cost about $2,275 to have it professionally installed. Estimate the cost of having a 18 by 22 ft brick patio installed
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08/02/16

Suppose that an arrow was fired vertically upward from a crossbow at ground level and that it struck the ground 20 seconds later. If air resistance may be negl
can anyone help solve this math word problem.
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