uestlon For the problem, use the discriminant to determine the number of real solutions for the equation. Then, find the solutions and check to see if they make sense in the context of the problem. A soccer player uses her head to hit a ball up in the air from a helght of 2 meters with an Initlal vertical velocity of 5 meters per second. The height h in meters of the ball is given by h = -4.9t2+5t +2, where t Is the time elapsed in seconds. How long will it take the ball to hit the ground if no other players touch it? Enter the time to two decimal places. The equation has two v real solution(s). zero The soccer ball re he ground after about 1.33 seconds. one two

Q: Coulomb's law for the magnitude of the force F between two particles with charges and separated by a…

A:

Q: Question 3 In a 30°-rough incline, a 1.25 kg block is initially at rest beside a spring that is…

A:

Q: A small sphere is suspended from a string in a uniform electric field shown by arrows, making an…

A: Given  Mass of sphere m=3×10-3 kg Charge on sphere q=8nC θ=35

Q: a-b=0 for two non-zero vectors a and 6. What is the angle between them? Choose 1 answer: 0 KIN k…

A:

Q: Exercise 2.3. Consider a cylinder of radius R with polarization P = free charge. Calculate the…

A: I have use the concept of free charge that

Q: 2. Show that √²(¹) = 0 provided the distance r from a point P(x, y, z) to the origin is not equal to…

A:

Q: 4Let P- 2.00i+6.00.Ĵ- 3.00 R. The magnitude of ū isi A5.00 B5.57 C7.00 DI7.42

A:

Q: 4. Movement of ions in the electric field: a. Electric force acting on an ion in the electric field,…

A: Note: As per Bartleby guidelines only one question has to be done at a time. Kindly post other…

Q: If the speed at x = 1, v(r = 1) = 3 m/s then the speed at x = 0, v(x=0) is:

A:

Q: 18. A golf ball rolls up a hill toward a miniature-golf hole. Assume that the direction toward the…

A:

Q: -X z (out of page) В (in ра -Y

A:

Q: Which of the following polar coordinates have the same position as (4, Tt/2)? ОА. (4, -п/2) ов. (-4,…

A: Original position = (4 , π2)

Q: 2. In order to cook this turkey, we will place it between two long straight parallel wires subject…

A: In this question we are given that In order to cook this turkey, we will place it between two long…

Q: 1. What must be the magnitude of a uniform electric field, in order that an electron initially at…

A: Solution 1. Given, electron gets acceleration = 2×1012 m/s2 we know that charge of electron =…

Q: 6 cm 30 nC 2 cm B

A:

Q: You hold your physics textbook in your hand. (Assume that no other objects are in contact with the…

A:

Q: Given p with magnitude of 40 and a direction of 25°, q with magnitude of 75 and a direction of 270°,…

A: let p = 40 and angle = 250 q = 75 and angle = 2700 p = 30 and angle = 2200

Q: Consider two copper coils. One is connected to a battery and the other is connected to a…

A: Let's assume the current is flowing initially from the positive terminal of the battery to the…

Q: 14. Two wires of equal length, one of aluminum and the other of copper have the same resistance.…

A:

Q: 65. Find the angles that vector D = (2.01 – 4.0j +k)m makes with the x-, y-, and z- axes.

A:

Q: )Problem 2: A 32 kg block is pulled along the ground for a distance of 5.2 m by a 63 N force at an…

A: "As per the guidelines i solved the first three subpart". Part (a): Find the work done by the normal…

Q: Q. 15: Show that P = F.v. %3D

A: Power is defined as rate of change of work. P = Work done/time = W/t As work done = product of force…

Q: Q10: Drag sled weighs = 50 lbs; Pull force = 22 N; %3D Coefficient of friction = %3D

A: 10)Sled weigh = 50 lbs = 502.205 kg = 22.67 kg pull force (F) = 22 N

Q: Starting from rest, Superman flies upward with an acceleration of 125 m/s over 21 meters vhen he is…

A: Given  Acceleration of Superman a=125m/s² Acceleration due to gravity g= 9.8m/s² distance from…

Q: Check the distance of “(2,5)·a1>a2” according to the given project diagram and determine the type of…

A:

Q: problems

A: Remember fundamental of fluid mechanics

Q: (a) What is the momentum in kg · m/s of a garbage truck that is 1.20 x 104 kg and is moving at 30.0…

A:

Q: 3. Determine the 5-day BOD for a 15 ml sample that is diluted with dilution water to a total volume…

A:

Q: Two points in the xy plane have Cartesian coordinates (2.00, –4.00) m and (-3.00, 3.00) m. Determine…

A:

Q: "hree charges are arranged as shown in the figure below. Find the magnitude and direction of the…

A:

Q: i Required information An object moving at constant speed v around a circle of radius r has an…

A:

Q: What is the direction of the magnetic field at point B due to I2 only? O a. +x direction o b. +y…

A:

Q: - of the inertial systems in Fi easure no net electromagnet

A: Explanation: The bulk modulus which relates to the velocity v as, B=ρv2

Q: The relative humidity of a 100m3 room at 20°C is 55%. If the room temperature drops to 10°C what is…

A: Given:    Volume = 100 m3    Relative humidity (RH) at 20oC as 55%                   RH(at 20°C) =…

Q: 7. The Daytona 500 stock car race is held on a track that is approximately 2.5 mi long, and the…

A: given,length of track l=2.5milesangle θ=310Vmax=180mi/sas l=2.5mi =2πrr=2.5mi2π=0.398mi

Q: (Force on plane surface) The rectangular gate CD of the figure below is 1.8 m wide and 2.0 m long.…

A: Pressure of liquid at depth h is given byP=hpg where h is the depth, p=density, g=gravitational…

Q: 1.7 Take U = U (T, P) and V = V (T, P). a. Show that - ),+"(),•[), +*(),]# OP ƏT OP dT b. Show that…

A: Given: U=UT,PV=VT,P

Q: 6. By using the kinetic energy formulas from the first semester and using electric field knowledge…

A: A moving charge carries kinetic energy in an electric field. And that kinetic energy be defined as,

Q: F(x) = 15x? – 4x +1 as it acts on a m ving from x=0 to x=5 m?

A: Given:  F(x) = 15x2-4x+1 mass, m = 2 kg  initial velocity, u = 0 m/s  x = 0 to x = 5 m

Q: 66./Michciel is playng curds with his friends, and it is his tură to deal A card has la mass op 2.3…

A: A free body diagram for the given problem is shown below

Q: ii) The angle between the vectors A = 4.0î + ĵ and B = −2.03 is: 0= =

A: We know that A.B= ABcosθ So we can derive θ from the above equation.

Q: 8. Let a = i + 2j − k, b = −i + j + k, and c = i + k. Which vectors, if any, are (a) perpendicular?…

A: As we know that,  (1) If the dot product of the vectors is zero,  a.b = 0  Then both vectors are…

Q: Vector A = 3 i + 3.8 j. Vector B = 5.1 i - 7.5 j. The dot product of the two is C = A ∙ B (i.e. A…

A:

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.