A boulder is being pushed by two different people on a flat terrain. The net force on the boulder can be expressed in the Cartesian coordinate system as vector f = (-4i + 5.5j)N. Where I and j denote directions to the east and north.  A. Find the magnitude in N  B. Find the direction (in degrees counterclockwise from the east axis) of the push.

Q: 2, A particle moving along a straight line decelerates according to a = -kv, where k is a constant…

A: Givena=-kvasa=dvdtthusdvdt=-kvdvv=-kdtintegarting from time t=0 to t, and v=4 (at t=0) to v (at…

Q: A metal sphere hangs from a string and has 2 kg of mass. The sphere has a charge of +2.5 μC. A…

A: Note that a positive charge moves along the line of force and a negative charge moves opposite to…

Q: The plates of a parallel-plate capacitor of capacitance 5 pF are 16 mm apart. The area of each plate…

A:

Q: Q1: An isolated point charge produces an electric field with magnitude Eat a point 1 m away. At a…

A:

Q: Under which of these conditions can you conclude with certainty that the total momentum before a…

A: Question is talking about conditions in which Linear Momentum is Conserved:

Q: 8. A fisher slowly lifts a fish with a 6 m long fishing-rod, the mass of which 0.5 kg. One hand of…

A: The force of 200 N is applied at the end of the rod, and the force of 150 N is applied at a distance…

Q: M (R₂+h) а = G- g 2

A: Givenag=GMRE+h2thusRE+h2=GMagtaking square root both sideRE+h=GMagthus,h=GMag-RE

Q: Compute the reaction of the cable that c onnects Block B and Block C.

A: Given: Three blocks connected with cables. Weight of block A is WA=30 kN Weight of block B is WB=10…

Q: Two 1.00 μC charged particles are located on the x axis. One is at x = 1.00 m, and the other is at x…

A:

Q: Part II. Significant Figures The significant figures in a number are all figures that are obtained…

A: The numbers are 123 12.3 2016 2.016 2.016×103 2.01×103 2.0×103 2×103 103 410 410. 4.1×102…

Q: An electron, which has a charge of 1.60 x 10-19 C, is released at rest in a uniform electric field…

A: Given: Charge on electron q=1.60×10-19 C Magnitude of uniform magnetic field= 120 N/C To calculate:…

Q: Find the potential inside and outside a spherical shell of radius R that carries a uniform surface…

A:

Q: ) Given the known information below about Triton (the largest moon of Neptune)  calculate the mass…

A:

Q: A force vector has a magnitude of 595 newtons and points at an angle of 38° below the positive x…

A: Given data  Force ( F ) = 595 Newton  38° below the positive x axis is equivalent to 322° above…

Q: 5. The figure below represents a pulley system where where two blocks with masses M-10 kg and m=6…

A: Given:-  The mass of the box on the surface is M = 10 kg  The mass of  the hanging box is m =6 kg…

Q: What is the magnification of the images formed by plane mirrors and why?

A:

Q: A backpacker carries 2.5 L of white gas as fuel for her stove. How many kg does the fuel add to her…

A:

Q: Use the one of the seven principles of biomechanics to exaplain. Which one stands straighter, out…

A: One of the seven principles of biomechanics that can be used to explain this scenario is the…

Q: Based on this graph, what is the resistance of the wire? Ω I (A) 50 25- 0 + 0.0 0.5 AV 1.0 R =…

A:

Q: A pipe with a constant 5.00 cm diameter carries water flowing at 4.00 m/s down a 10.0-m hill. The…

A:

Q: (a) What is the magnitude and direction of an electric field that exerts a 3.105 N upward force on a…

A:

Q: If an object weighs 3 x 105 N on the surface of the earth, what would its weight be at an altitude…

A: R is radius of earth , R = 6400 km

Q: Which of the following statements are correct? Which one or more? a. Steven's power law states…

A: The correct definitions are : a. Steven's power law states that loudness is proportional to I13,…

Q: An object is dropped from the top of the Burj Dubai which is 830 meters high and name as the tallest…

A:

Q: Grains of fine California beach sand are approximately spheres with an average radius of 50 pm and…

A: Given data: The given radiusr=50 μm=50×10-6 m. The density isρ=2.6×103 kg/m3. The areaa=0.8 m.

Q: The answers to this question are wrong is there any other way to complete this problem?

A:

Q: A block is released from rest at the top of a frictionless inclined plane 16 m long. It reaches the…

A:

Q: If E-field lines are not parallel in a certain region of space, for this region all of the following…

A: Current option ins 4th charge must exist

Q: Electrons are accelerated in television tubes through a potential difference of about 1.50 x 104 V.…

A: Given Data, Potential Difference V=1.50×104 V Range of X-Ray Wavelength =0.01 nm to 10 nm

Q: The point charges in the figure below are located at the corners of an equilateral triangle 25.0 cm…

A:

Q: Multiple Choice 1. A bicyclist increases her speed from 4.0 m/s to 6.0 m/s. The combined mass of the…

A:

Q: A uniform Electric Field exists in the region between two oppositely charged plane parallel plates.…

A: Given value--- initial speed of proton = 0 m/s. separation between plates = 1.60 cm. time = 1.5 ×…

Q: Cars these days have parts that can crumple or collapse in the event of an accident. How does this…

A: when there is any accident takes place then some parts of the vehicle collapse to bear the impact…

Q: Assuming the +x-axis is horizontal and points to the right, resolve the following vector to its…

A:

Q: Waves have energy that causes particles in matter to vibrate. So, it stands to reason that O the…

A: The statement in the question is discussing the relationship between the energy of a wave and the…

Q: 2. Two-point charges of 5μC each are separated by 12cm. What is the magnitude of the electric force…

A: Given, 2) q1= 5µC       q2 = 5µC  r= 12cm    3) q1= 5C       q2= 15C  F= 6.75×1013 N

Q: Part A What must the charge (sign and magnitude) of a particle of mass 1.44 g be for it to remain…

A:

Q: 1, A point charge of 3.0 μC is 12.0 cm away from a second point charge of -1.50 μC. Calculate the…

A: (1) Given: Charges q1=3 μC, q2=-1.5 μC, Distance between the charges r=12 cm=0.12 m. Required:…

Q: For all questions, assume concepts such as friction or air resistance are negligible, unless…

A: The ball is launched from the ground, at an angle of 60o and with an initial speed of 15 m/s Since…

Q: A material with a mass density of 5.0 kg/m3 is heated until it expands to twice its original…

A: Given data as per the question mass density =5 ​kgm3

Q: If the density of air is 1.25 × 10-3 g/cc, what is the mass in kilograms of the air in a room that…

A:

Q: II L II L FA If 8 = 50°, and the magnitude of FA is 8 kN, and the magnitude of FB is 4 kN, determine…

A:

Q: An air-filled parallel-plate capacitor has plates of area 2.70 cm2 separated by 1.00 mm. The…

A:

Q: The intensity of sound from a single point source is measured at two locations which are distances…

A: To prove:β2-β1=20 log (r1r2)

Q: Three particles lie on the three corners of an equilateral triangle with sides of length 3.0 cm.…

A:

Q: A 1,700 kg car is being used to give a 1,400 kg car a push start by exerting a force of 140 N. The…

A: Given , 1700 kg car push the 1400kg car . Force exerted by larger car on smaller car is 140 N. The…

Q: Identify the relationship between electrical charges and magnetic poles

A:

Q: When a force Facts on an object at some distance r from a point P, called the pivot point, it can…

A: Draw the free-body diagram of the system with the resolved force components.

Q: A stone is thrown from a hill at an angle of 60 degree to the horizontal with an initial velocity of…

A: Given: Initially stone is at hill and undergoes into projectile motion. Angle made by initial…

Q: Internal energy's natural variables are entropy, S, and V. Mathematically, it can be written as…

A: Given: Internal energy as a function of entropy and volume, that is, U=US,V Find: Total differential…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!