9. Suppose that a runner on a straight track covers a distance of 1 mile in exactly 4 mins. What was his average velocity in ft/sec?

Q: 2. A 35 kg child is riding on a swing. At her highest point she is 1.8 m above the ground, at her…

A:

Q: 2. A person decides to swim across a river 84 m wide that has a current moving with a velocity of…

A: According to guideline I solve only first 3 subparts of question 2.

Q: 4. A cannon is pointed upward at an angleof 30 degrees with respect to the horizontal ground. If the…

A:

Q: in+ U→ Ba + Kr+3,n II. Calculate the energy released in the following fission reaction: The masses…

A: Solution attached in the photo

Q: 13. Show that the following reaction are forbidden by the conservation of charge and/or baryon…

A: To show that, The following reaction is forbidden by the conservation of charge or baryon number…

Q: 4. Fret if a 1 is increased three times and qz is reduced to 2 : 5. Fnet if g2 is increased three…

A: Given data: The net force between two charges is given as, Fnet = 500 N Formula used: According to…

Q: In the figure a nonconducting rod of length L = 8.19 cm has charge -q = -4.35 fC uniformly…

A:

Q: ACTIVITY 3: PROBLEM SOLVING Directions: Solve the following problems. Express your final answers in…

A: #3 Given data: The horizontal component of velocity is vH=25 m/s. The time taken in the journey is…

Q: 14. It is produced by a turning force and tends to produce rotational acceleration. a) Horsepower b)…

A: Torque: It is the measure of the force which can cause an object to rotate about it's axis. Angular…

Q: #2. Draw each of the following vectors, then express these vectors in terms of unit vectors. a) d =…

A:

Q: 1. N Find the magnitude of the vector B = - 2.00f + 3.00ĵ – 4.00k.

A: B→=-2.00j^+3.00j^-4.00k^=1.00j^-4.00k^B→=1.002+-4.002=4.12

Q: Find the angle between A = 10a + 2a, and B 4a, + 0.5a¸ , using dot product. y y 3 Answer:

A:

Q: Find the force(F) on a 10µC charge at (1,1,3)m if four like charges of 200µC are located on thex and…

A:

Q: The curve surface represented by AB in the figure is the surface of the quadrant of a circular…

A: Given The quadrant of a circular cylinder 3 m long r = 1.5 m , z = 0 Determine the horizontal and…

Q: 3. If a car is traveling at 20 meters per second in a straight line, how many meters will it take…

A:

Q: 9. Compute the wavelength of an X-ray with a frequency of 10"Hz. Use the speed of light. 10. During…

A:

Q: What is the resistance of A 1.3-m-long gold wire that is 0.30 mm in diameter? Express your answer in…

A:

Q: The figure shows an overhead view of a 0.024 kg lemon half and two of the three horizontal forces…

A: Acceleration: The acceleration can be defined as the time rate of change in the velocity of an…

Q: 5. A bicycle wheel of radius 0.30 m is spinning at a rate of 60 revolutions per minute. (a) What is…

A:

Q: An angle of a circle with a 2 m radius is A0 = 20°. What is the corresponding arc length As? 11. D.…

A: 11. radius of circle,r=2 m∆θ=20

Q: You are asked to consult for the city's research hospital, where a group of doctors is investigating…

A:

Q: thrower? c. What is the maximum height reached by the javelin? 7.0m 9.8m O 10.5m 8.5m

A:

Q: (5) A 15.0A current produces a B field at the center of an arc of angle n/4 radians and radius…

A: (5) Given Current (I) = 15.0 A Radius (r)  = 0.500 m Angle θ  = π4 radians

Q: 4. A cylindrical tank, having a vertical axis, is 2 m in diameter and 4 m high. Its sides are held…

A: 4. Given Diameter A = 2 m Height h¯     = 4 m

Q: The figure shows a rod of length L = 8.84 cm that is forced to move at constant speed v = 4.19 m/s…

A: We have to find the rate at which the force works on the rod. So this means that we have to find the…

Q: 5. Two long, parallel conductors, separated by 10.0 cm carry currents in the same direction. The…

A:

Q: 11. Suppose you throw a ball with a mass of 0.40kg against a wall. It hits the wall moving…

A: Given data: Mass of ball, m=0.40 kg Initial velocity of a ball, vi=30 m/s Final velocity of a ball,…

Q: 12. Assuming the Earth to be a sphere of radius 4,000 miles, an earth satellite in a circular orbit…

A: 12) Let R be the Earth's radius, h be the satellite's height and T be the time taken to complete one…

Q: The cross-sectional area of the smaller piston of a hydraulic press is 129 cm? while the area of the…

A: area of cross section of small piston = A1= 129 cm2 area of cross section of larger piston = A2=…

Q: Given A = y 4a + a_and vectors B = 2a_ + 3a , find the scalar projection of A on B. %3D 2 Answer:

A: Given  A→=4ay→+az→B→=2ax→+3ay→ Scalar projection of A→ on B→ is given by, s=A→·B→B

Q: 2. A Basketball player with a height of StH Tim Stands on a S.Pom Free throw linc with a 3.05m high…

A: The height of person is h=5 ft 7 in =1.7 m The range of projectile will be R=5.8 m The height of…

Q: You manage a factory that uses many electric motors. The motors create a large inductive load to the…

A:

Q: 2. What is the maximum length of a wrench needed to apply 90 Nm torque to the bolts on a motorcycle…

A:

Q: Problem 2: Two force are acting on point Q as shown figure 5. the F = 350N in Calculate magnitude of…

A:

Q: What is the resistance of a silver wire 15 m long at 20°C silver at 20°C is 1.60 x 10 S2-m. How much…

A: 1.AnswerGivenlength of wire, L=15 mdiameter of wire, d=0.00085 mResistivity of silver, ρ=1.6×10-8…

Q: 1. A man is sitting on a train with a constant velocity of 10 m/s East. The man then stands up and…

A: Due the direction of motion the velocity will change as direction  changes

Q: I need help with number 36

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: At the Large Hadron Collider (LHC), protons are fired in a ring and reach at top speed of 99.99991%…

A:

Q: 20. A point charge of -1.0×10°C and a charge of + 3.0x10°C separated by 5.0x10² m what is the…

A: 20. Given data: Magnitude of charge 1 is, q1=-1.0×10-9 C. Magnitude of charge 2 is, q2=+3.0×10-9 C.…