Problem 2: A 66 kg man is being pulled away from a burning building as shown in thefigure.Randomized Variablesm = 66 kg15°T1T2. 10° Part (b) Calculate the tension T2 on the right side of the rope, in newtons, if the man is in static equilibrium.T2 =

For equilibrium horizontal and vertical forces must be balanced

Answered: Problem 2: A 66 kg man is being pulled…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter28: Special Relativity

Section: Chapter Questions

Problem 37PE: (a) Find the momentum of a 1.00109 kg asteroid heading towards the Earth at 30.0 km/s. (b) Find the...

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A student standing on a stationary skateboard tosses a textbook with a mass of mb = 1.8 kg to a friend standing in front of him. The student and the skateboard have a combined mass of mc = 113 kg and the book leaves his hand at a velocity of vb = 4.36 m/s at an angle of 34° with respect to the horizontal.Randomized Variablesmb = 1.8 kgmc = 113 kgvb = 4.36 m/sθ = 34°Calculate the magnitude of the velocity of the student, vs, in meters per second. What is the magnitude of the momentum, pe, which was transferred from the skateboard to the the Earth during the time the book is being thrown (in kilogram meters per second)?
A car moving at 12 m/s crashes into a tree and stops in 0.22 s. Randomized Variables v = 12 m/s t = 0.22 s m = 68 kg F= 3709.1 Part (a) What would the final velocity be, in meters per second, if the car with the 68-kg passenger had collided with (and stuck to) a car that has a mass equal to and is traveling in the opposite direction and at the same speed?
Problem 1: While sunbathing on the balcony of your 3rd floor apartment, you notice someone drop a m = 8.7 kg pumpkin from rest from the roof of the 5-story building across the street. Since you just completed a course on surveying, you know that the two identical buildings are d = 32 m apart, and have floors that are h = 4.9 m tall. The first floor is at ground level, as shown. Randomized Variablesm = 8.7 kgd = 32 mh = 4.9 m Part (a) Determine the magnitude of the angular momentum of the pumpkin, in kilogram meters squared per second, as observed by you immediately after it is dropped.Numeric : A numeric value is expected and not an expression.La = __________________________________________Part (b) Determine the magnitude of the angular momentum of the pumpkin, in kilogram meters squared per second, as observed by you as it passes the floor of the 4th floor balcony of the other building.Numeric : A numeric value is expected and not an expression.Lb =…
A student of mass m1= 57 kg stands on a long cart of mass m2=135 kg initially at text. He begins to run in the cart with a speed relative to the ground of v1=3.3 m/s. Randomized Varibles M1= 57 kg M2= 135 Kg V1= 3.3 m/s (A) write an expression for the horizontal component of the carts velocity relative to the ground while the student is running, in terms of the variables given in the problem statement. Assume the student is running in the positive X direction. (B) what is the velocity in meters per second? (C) what is the horizontal component of the students velocity relative to the cart, in meters per second? Use a coordinate system fixed to the cart which has the same orientation for the X axis as a system fix to the ground we defined in part (a).
Problem 9: A horizontal force, F1 = 95 N, and a force, F2 = 19.7 N acting at an angle of θ to the horizontal, are applied to a block of mass m = 2.1 kg. The coefficient of kinetic friction between the block and the surface is μk = 0.2. The block is moving to the right.Randomized VariablesF1 = 95 NF2 = 19.7 Nm = 2.1 kg Part (a) Solve numerically for the magnitude of the normal force, FN in Newtons, that acts on the block if θ = 30°. Part (b) Solve numerically for the magnitude of acceleration of the block, a in m/s2, if θ = 30°. SO FOR A I GOT 10.73 AND IT WAS WRONG AND FOR B I GOT 52.34 WHAT AM I DOING WRONG??????///
A particle has γ=2,865. a) Calculate c-v in m/s. If your calculator gives problems, you might want to solve the appropriate equation for c-v or c(1 - v/c) and use an approximation. b) In the previous problem, in a race to the moon, by 3/4ths the distance, light is one or ten meters ahead of the particle. We routinely approximate mass as zero, gamma as infinite, and speed as the speed of light. ("Massless particles" -- gamma and m have to be eliminated from the expressions. Light is a true massless particle.) If a massless particle has momentum 2,910 MeV/c, calculate its energy in MeV.
Problem 2: A toy duck is floating on the water. The average density of the duck is pd= 820 kg/m, while the density of water is p = 1.0 x 10 kg/m. The volume of the duck is V= 0.000105 m³ Randomized Variables Pa= 820 kg/m3 V= 0.000105 m³ Part (a) Express the weight of the duck, W, in terms of pa and Va- W = 7 HOME P Pd 4 5 6. d. g 1 2 3 h 1 m END Va vol BACKSPACE CLEAR Submit Hint Feedback I give up! Part (b) Calculate the numerical value of W in Newtons. Part (c) Express the magnitude of the buoyant force, F, in terms of p and the volume of water that the duck displaces, Vw- Part (d) Express the volume of the duck in water, Vy, in terms of p, Pa and Va. Part (e) Calculate the numerical value of the volume of the duck in water, V, in m.
Take Test: Exp: 3 Free Fall Lab report 1st 2021-2022 QUESTION 3 The following data are taken by a student for a free fall experiment, Уm) 0.300 12(sec) 0.284 t1(sec) 0.264 0.350 0.286 0.306 0.400 0.306 0.326 0.450 0.325 0.345 0.500 0.344 0.364 0.550 0.361 0.381 0.600 0.377 0.397 Use the above table and the following equation to plot (y vs t2 ) graph. 1 y=gt2 The slope of the graph is and its unit is The slope represents The value of g is O and its unit is Save Answer
Bryce, a mouse lover, keeps his four pet mice in a roomy cage, where they spend much of their spare time (when they are not sleeping or eating) joyfully scampering about on the cage's floor. Bryce tracks his mice's health diligently and just now recorded their masses as 10.3 g,18.5 g,11.3 g, and 18.3 g. At this very instant, the x‑ and y‑components of the mice's velocities are, respectively, (0.115 m/s, −0.527 m/s), ,(−0.237 m/s, −0.391 m/s), ,(0.843 m/s, 0.455 m/s), and (−0.897 m/s, 0.135 m/s). Calculate the x‑ and y‑components of Bryce's mice's total momentum, px and Py. px____kg.m/s py ____kg.m/s
E) A student performs the experiment and measures the distance between photogates: d = 50 ±0.1 cm, the times measured by photogates: to = length: s = 10 +0.05 cm. Find the acceleration a of the cart and estimate the uncertainty in a. 0.052 + 0.001s and ti = 0.035 + 0.001 s, and the cart's A The stut
Problem 2: A baseball of mass m = 0.25 kg is dropped from a height h, = 2.05 m. It bounces from the concrete below and returns to a final height of h2 = 1.35 m. Neglect air resistance. Randomized Variables m = 0.25 kg h = 2.05 m h2 = 1.35 m
I want (a) & (b) answer

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Problem 2: A 66 kg man is being pulled away from a burning building as shown in the figure. Randomized Variables m = 66 kg 15 T, T2 .10°