Advanced Level Physics Problems and Solutions

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Physics
Advanced Physics

A uniform beam AOB, O being the mid point of AB, mass m, rests on three identical vertical springs with stiffness constants $k_{1}$ , $k_{2}$ , and $k_{3}$ at A, O and B respectively. The bases of the springs are fixed to a horizontal platform.
Determine the compression of the springs and their compressional forces in the case:
$k_{1} = k_{3} = k$ and $k_{2} = 2 k$

erkentrs 2022-08-11

Its mentioned in several books that a satellite launched with a velocity less than the escape velocity and other than the critical velocity will follow an elliptical orbit. However I can't find a derivation of its equation of trajectory.

Meossi91 2022-08-10

I have a question about acceleration equation.
$[\begin{matrix} f_{x} \\ f_{y} \\ f_{z} \end{matrix}] = [\begin{matrix} \dot{u} \\ \dot{v} \\ \dot{w} \end{matrix}] + [\begin{matrix} 0 & w & - v \\ - w & 0 & u \\ v & - u & 0 \end{matrix}] [\begin{matrix} p \\ q \\ r \end{matrix}] + g [\begin{matrix} \sin θ \\ - \cos θ \sin ϕ \\ - \cos θ \cos ϕ \end{matrix}]$
Here, why uvw should be skew-symmetric matrix and why skew-symmetric matrix of uvw should be multiplied with pqr?

Meossi91 2022-08-10

Convert the following energy units.
a) $7.20 \times 10^{2} k J t o J$
b) $2350 kcal to kJ$
c) $6.21 \times 10^{6} J to kcal$

imire37 2022-08-10

Compute your average velocity in the following two cases: a) You walk 76.8m at a speed of 1.41m/s and then run 76.8m at a speed of 3.41m/s along straight track. b)You walk for 1.00 min at a speed of 1.41 m/s and then run for 1.13min at 3.41m/s along a straight track

Trystan Castaneda 2022-08-10

What makes up the unit joules?

Pader6u 2022-08-08

Marble Samples, if the bag contain 3 yellow, 4 white, and 8 blue marbles, how many sample of 2 can be drawn in which both marbles are blue?

daniellex0x0xto 2022-08-05

Why is it that when one considers some plane wave:
$E (r, t) = E_{0} e^{i (k_{0} z - ω_{0} t)}$

Lacey Rojas 2022-08-05

The gas mileage for a certain vehicle can be approximated by m = -0.04x^2 + 3.6x - 49, where x is the speed of the vehicle in mph. Determine the speed(s) at which the car gets 30 mpg. Round to the nearest mph.

trokusr 2022-08-04

the scale on the map shows 500 feet for every 1/4 inch. if two cities are 6 inches apart on the map, what is the actual distance they are apart?

John Landry 2022-07-28

The height of an object tossed upward with an initial velocity of 136 feet per second is given by the formula $h = - 16 t^{2} + 136 t$ , where h is the height in feet and t is the time in seconds. Find the time requiblack for the object to return to its point of departure.

Roelyn Padrelanan2022-07-27

An average human weighs about 650 N. If two such generic humans each carried 1.0 coulomb of excess charge, one positive and one negative, how far apart would they have to be for the electric attraction between them to equal their 650-N weight?

Karsyn Beltran 2022-07-27

if you travel 60 miles in 85 minutes what is your speed in units

Awainaideannagi 2022-07-25

the distance between objects in space are so great that units other than miles or kilometers are often used. For example the astronomical unit (AU) is the average distance between earth and the sun or 92,900,000 miles. use this information to convert the distance of some planet in miles from its stars to astronomical unit. the planet is 893.1 million miles from the star.
what is the distance between the planet and the star?

Macioccujx 2022-07-24

Two planes leave from Atlanta, Georgia. One makes a 5.2-hr flight to Seattle, Washington, and the other makes a 2.5-hr flight to Boston, Massachusetts. The plane to Boston averages 44 mph slower than the plane to Seattle. If the total distance traveled by both planes is 3124 mi, determine the average speed of each plane.

on2t1inf8b 2022-07-19

Do particles have to move in a straight line to apply Suvat equations?

Makenna Booker 2022-07-18

A car (mass mA) is driving at velocity V, when it smashed into an unmoving car (mass mB), looking bumpers. Both cars move together at the same velocity. The common velocity will be by
A) mAV/mB
B) mBV/mA
C) mAV/(mA+mB)
D) (mA+mB)V/mA

Lorelei Patterson 2022-07-17

According to Guinness, the tallest man to have ever lived was Robert Pershing Wadlow of Alton, Illinois. He was last measured in 1940 to be 2.72 meters tall (8 feet, 11 inches). Determine the speed which a quarter would have reached before contact with the ground if dropped from rest from the top of his head.

Luke Taylor2022-07-07

Compute the work required to stretch a spring from equilibrium to 11 cm past equilibrium, assuming that the spring constant is k=190 kg/s2 $k = 190 {kg/s}^{2}$ .

ROFHIWA NDOU2022-07-03

A projectile is fired with an initial speed of 36.6 m/s at an angle of 42.2 above the horizontal on a long flat firing range. Determine (a) the maximum height reached by the projectile, (b) the total time in the air, (c) the total horizontal distance covered (that is, the range), and (d) the speed of the projectile 1.50 s after firing

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