What is the speed of sound in air when the air temperature is 31 °C? A shell fired at a target 800 m distant was heard to strike it 5.0 s after leaving the gun. Compute horizontal velocity of the shelL. The air temperature is 20°C.

Q: A cyclist pedals along a slope which is at 5.0° to the horizontal. The cyclist starts from rest at…

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Q: For numbers 15 to 16, consider resistors R1 and R2 that are connected in PARALLEL to a 6 V battery.…

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Q: A frisbee is thrown with a velocity of 20m/s. How long will it take the frisbee to strike a target…

A: Data provided:  Velocity (v) = 20 m/s Distance (d) = 84 m Asked: Time (t)

Q: 10. When a sound wave hits a solid surface, some of the energy is and some of it is reflected.

A: A wave is a propagating disturbance which have energy without any net moment of its particles from…

Q: 1. At the beginning of a five-second acceleration period, the velocity of an object was 30 m/s.…

A: Given data:  Time (t) = 5 s Initial velocity (u) = 30 m/s Displacement (d) = 400 m Required: Final…

Q: Problem 3 The electric field intensity of a time-harmonic plane electromagnetic wave is given by…

A: The electric field is E(x,y,z,t)=ax.126sin(109t-6y+8z-0.2) Comparing with E(x,y,z)=E0sin(wt-k.r-ϕ)…

Q: A girl on skateboard (total mass of 56.4 kg) is moving at 11 m/s at the bottom of a long ramp. The…

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Q: In the figure, an electron accelerated from rest through potential difference V₁-1.13 kV enters the…

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Q: Having gained entry into a local aquarium, a bobcat launches himself into projectile motion with a…

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Q: A golfer hits a golf ball at an angle of 0 = 22° with initial velocity v = 180 ft/s. (a) Estimate As…

A: Range is given by, s=v2sin2θg

Q: An infinitely long wire is uniformly charged. The voltage difference from r 2 m and r= 4 m is 30…

A: Given:    An infinitely long wire --- uniformly charged.    Voltage difference (ΔV) (between r1 = 4m…

Q: 2. What happens when two like poles are near? Two opposite poles? Can this happen at the same time?…

A: SOLUTION; 2. The like poles are repelled while the unlike poles are attracted. Thus, when two like…

Q: Calculate the horizontal force P on the light 14° wedge necessary to initiate movement of the 32-kg…

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Q: 1. The International Space Station has a mass of 4.19 x 105 kg and orbits at a radius of 6.79 x 106…

A: Mass of the space station m=4.19*105kg and the radius of the orbit from the center of Earth…

Q: A rope that weighs 0.5 lb/ft is attached to a bucket filled with cement plaster that weighs 22 lbs.…

A: weight per unit length, w=0.5 lb/ft Bucket with plaster, W=22 lb This bucket is pulled by the rope…

Q: Problem #1) Determine the moment of forces about point 0. F3=75 lb X- 15⁰ 6'-0" Y F₂ = 50 lb 90° Y…

A: Forces F1 = 25 lb,  F2 = 50 lb, F3 =  75 lbdistance between origin and point O (d) = 6 ft

Q: nae 3lit interflrence experieent with Inght, we place the 2 opemnys O,2mm qpnta Aromeach etter ,and…

A: Given: d=0.2 mm=0.2×10-3 m D=3.5 m ∆y=1 cm=0.01 m 1. We know, ∆y=λDd Solving for wavelength we get,…

Q: What do you think is the reason why we have different weights if we go to th Moon or to another…

A: As per guidelines we are suppose to do only three question from multiple related question, and only…

Q: On earth, two parts of a space probe weigh 10600 N and 3780 N. These parts are separated by a…

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Q: With what velocity vo should a projectile be started at the center of the Earth to reach the surface…

A: As per the guidelines we can solve only 1 question. Solution of 1st question is given Law of…

Q: Three large sheets are separated by equal distances of 15 cm as shown in the figure. The first and…

A: 1. Hence as per the given question,  there are three conducting and non-conducting plates .  which…

Q: The cue ball hits the "8" ball in a head-on collision. The cue ball is moving at a speed of 3.96 m/s…

A: In a perfectly elastic collision between two bodies, total momentum is conserved and total kinetic…

Q: 1. Study the circuit shown and answer the following questions (the capacitor is completely…

A: as asked answer of last two find : charge on capacitor after one time constant and after long time

Q: (20%) Problem 2: Suppose you have a 1.9 μC point charge. 50% Part (a) How far in meters from the…

A: Given: In this question, the given details are, Suppose the point charge is 1.9 μC a) To find…

Q: DOES AN OJECT AT REST HAVE MOMENTUM? WHY OR WHY NOT? * efe WHAT ASSUMPTIONS WILL YOU MAKE REGARDING…

A: Momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e.,…

Q: In lectures you will derive the well known formula for the energy levels of a hydrogen atom: En =…

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Q: In the following diagram, block B weighs 711 N. The coefficient of static friction between the block…

A: Given value--- Weight of block B = 711 N. coefficient of static friction = 0.35 . angle = 30…

Q: 5. Find the unknown quantities for the networks below using the information provided. a)

A: Answer               I1 = 12A               I3 = 13 A

Q: 15. Two point charges, labeled "A" and "B" are P (0,7 m) located on the x-axis. “A" has a charge of…

A: The two charges A and B have the same magnitude of charge, but of opposite signs, and they are…

Q: Show all of your computations at the back of page 5. Have the correct units in the answers. A.…

A: Using Ohm's Law, We have V = IR Where V = Voltage I = Current R = Resistance

Q: 10. A car is slowing down from the initial velocity of 19.3 m/s to 6.3 m/s. It took the car 5.2…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: For some an application, it is important that the value of a resistance not change with temperature.…

A: SOlution: to make a 4.7 kOhm resistor from Carbon and Nichrome at 0 c temperature

Q: 13. How far did this object travel in total? Determine the following: 40 14. The acceleration from…

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Q: Determine the charging process ex hibit in the following situations. Write friction, conduction, or…

A: there are three methods of charging  1.frictional electricity 2.conduction 3.induction Frictional…

Q: A cyclist pedals along a slope which is at 5.0° to the horizontal. The cyclist starts from rest at…

A: Given data:  Initial velocity (u) = 0 m/s Final velocity (v) = 12 m/s Mass (m) = 90 kg Required: The…

Q: (numbers 13-14) Trucks 1 and 2 each have a siren emitting a pure tone of 600 Hz. Truck 1 remains…

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Q: A cyclist pedals along a slope which is at 5.0° to the horizontal. The cyclist starts from rest at…

A: Given data:  Angle (θ) = 5.0°, with the horizontal Inclined distance (d) = 40 m Mass (m) = 90 kg…