02/28/22

Quick Questions for General Physics

In using an ammeter, it should be connected in series to the component to be measured. Explain why should the resistance of the ammeter must be equal to zero. In using voltmeter, it should be... more
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02/27/22

Curling Sport Momentum and Collisions Physics Problem

Disappointed with a 4th place tin medal in bobsledding, Burl has decided to take up curling. One of the opposing team's stones is resting on the outer edge of the house as shown below. With which... more
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02/27/22

Unit clause propagation variable from 4 to 3
How many variables are assigned in the formula below in an exhaustive application of the 'unit clause' rule from the DPLL SAT-solving algorithm?Recall that the rule can propagate, i.e., after... more
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02/26/22

Box Sliding Down Incline
A 2.0 Kg box is sliding down a 20 degree, 5-m long ramp with coefficient of kinetic friction 0.2. if it started at 1.0 m/s, how fast will it be at the bottom of the ramp? Is there anyway I can get... more
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02/26/22

Please I need help with this physics problem. I would like to see the steps on how to solve it. Thank you!!!
Th frequency of a light wave is 2.3x10^14 Hz. what is the wavelength, in nm, of this wave when it enter glass with an index of refraction of 1.6?
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02/26/22

I am having issues figuring out the correct steps to solve this and a walk through would be appreciated... Please help!
A metal plate has the form of a quarter circle with a radius of R = 100 cm. Two 3 cm holes are to be drilled in the plate r = 95 cm from the corner at 30∘ and 60∘ as shown above. To use a computer... more
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02/24/22

ap physics spring and momentum collision question
A 0.100kg block is attached to an initially unstretched spring of force constant k = 50.0 N/m. The block is released from rest at time t = 0.At the bottom of its oscillation, the block runs into a... more
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02/24/22

How to show that a limit does not exist
Show that the limit does not exist: lim(x,y)→(1,0) (x + y2 − 1)/ √ [(x − 1)2 + y4]
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02/23/22

Find the equation of the tangent line to the curve y = e^x when it is parallel to 2x - y = 7
y = ex 2x - y = 7 m = 2y' = exe2 = 2x = ln (2)eln(2)= 2 (ln 2,2)y - y1 = m(x - x1)y - 2 = 2(x - ln 2)y = 2x - ln 2 + 2y = 2x - 1.39 + 2 is the equation of the tangent lineam i correct?
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02/23/22

I need help with math
A ball is thrown up with a initial velocity of 40ft/sWhen does the ball reach 24 feetWhen does the ball reach 40 feetWhat is the greatest height reach by the ballWhen does the ball reach the... more
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02/23/22

let f(x)= 4+(3x+7)^3 , find f^-1(x) = , find(f(x))^-1

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02/23/22

sinusoidal functions. fill in the blanks given the information.
On a certain day the tide in Boston Harbor reaches high tide (10 ft) twice at midnight and at 12:15 PM . if low tide is at a height of 0 feet and T(h) is the height of the tide at time h hours... more
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02/22/22

AP PHYSICS C E and M
A point charge of +10 μC is at (+3 m, 0 m) on the x-axis and a point charge of +10 μC is at (-3 m, 0 m). Determine the work required to assemble this charge distribution Find the magnitude of... more
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02/22/22

Find the integral of ∫ 2 secxtanx + 1/6x 𝑑𝑥
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02/21/22

Help, math, matrix, calculus
Hi, I need some help with simple mathematics, matrixGiven the matrix 6 -2 *B = * 6 -1 -1 * 5a) Find the missing coefficients in the matrix B so that it becomes... more
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02/21/22

Determine a delta for an arbitrary epsilon
1. The following graph of the function f satisfies x→3limf(x)=−1. Determine a value of epsilon>0 that satisfies the following: If 0<|x−3|<epsilon, then |f(x)+1|<1. 2. Use the precise... more
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02/21/22

Diameter of the satellite dish
A satellite dish is shaped like parabola with the receiver placed at the focus. It is to have a depth of 10. 25 m at the vertex, with the receiver placed 3.5 m away from the vertex. What should the... more
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02/19/22

Equilibrium Rotational Motion
A 10.5 kg board 6.00 m long issupported by two sawhorses, oneat each end.A 4.45 kg saw sits onthe board 1.80 m from the left end.Find the upward force that theLEFT sawhorse exerts on theboard(Unit... more
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02/17/22

Approximately how many times louder is a 170-dB sound than a 90-dB sound?
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02/17/22

Calculate the wavelength of a wave on a cable
A steel cable with total length 34 m and mass 120 kg is connected to two poles. The tension in the cable is 4,128 N, and the wind makes the cable vibrate with a frequency of 2 Hz. Calculate the... more
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02/17/22

Force on the biceps when throwing an object in the air
A waiter holds two plates of food in one hand. His forearmhas a mass of 2.2 kg and the centre of mass of his forearm is located 13 cm from his elbow joint. The centre of mass of the two plates is... more
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02/12/22

A winch at the top of a 12-meter building pulls a pipe of the same length to a vertical position, as shown in the figure.
The winch pulls in rope at a rate of −0.1meter per second (ds/dt = −0.1 m/sec).Find the rate of vertical change and the rate of horizontal change at the end of the pipe when y = 4. (Round your... more
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02/12/22

A winch at the top of a 12-meter building pulls a pipe of the same length to a vertical position, as shown in the figure.
The winch pulls in rope at a rate of −0.1meter per second (ds/dt = −0.1 m/sec).Find the rate of vertical change and the rate of horizontal change at the end of the pipe when y = 4. (Round your... more
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02/11/22

You pull with a force of 235 N on a rope that is attached to a block of mass 28 kg, and the block slides across the floor at a constant speed of 1.7 m/s.
Q: You pull with a force of 235 N on a rope that is attached to a block of mass 28 kg, and the block slides across the floor at a constant speed of 1.7 m/s. The rope makes an angle of α= 46 degrees... more
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01/31/22

Construct a dfa that accepts strings on {0, 1} if and only if the value of the string, interpreted as a binary representation of an integer, is zero modulo five.

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