Why is a proton positively charged?

Q: Problem 8:  Two speakers placed 0.99 m apart produce pure tones in sync with each other at a…

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Q: Find the currents in the following networks. 43. 10Ω 44. 3800 V 13 50 2 I2 20 Ω I3 I2 80 2 220 V 40…

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Q: determine the resistance of the following: a) nichrome wire for heating element of an electric…

A: A) nichrome wire length = 190 cm diameter = 0.05 cm

Q: Two carts roll on a level track, with negligible friction. These carts have small magnets at their…

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Q: 3. The ballistic pendulum used to be a common tool for the determination of the muzzle velocity of…

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Q: A block of metal weighs 40 N in air and 30 N in water. What is the buoyant force on the block due…

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Q: Problem 15:  You are on your way to a party when the host asks you to pick up a bag of ice. At the…

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Q: Karen is driving 65 km / h [E30S ] when suddenly she turns and is travelling at 45km / h S50E . If…

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Q: boy rides a small car at a speed of 12 km / hr along a circular path with radius of 3.5 m. Wat is…

A: boy rides a small car at a speed of 12 km / hr along a circular path with radius of 3.5 m.

Q: An ELECTRON moves to the west at 4.8 x 10^7 m/s and experiences a magnetic force of 6.0 x 10-13 N…

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Q: : A traveling wave along the x-axis is given by the following wave function ψ(x, t) = 3.6 cos(1.4x…

A: Given Data:- Wave function of the traveling wave is ψ(x,t)=3.6 (m) cos (1.4x-9.2t+0.34)

Q: A string with a mass per unit length of 0.500g/cm has waves traveling on it which can be described…

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Q: What work is done on a level track in bringing the velocity of a train weighing 200 tons from zero…

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Q: wo pure tones are sounded together. The drawing shows the pressure variations of the two sound…

A: The pressure variations for two pure tones is shown in the figure

Q: Give the Fahrenheit and Kelvin equivalent of the following Celsius temperature а. 120° С b. 77°C С.…

A: As per the answering guidelines we will solve first three Parts. Please upload rest of the parts…

Q: 5. Three point charges are fixed in place as shown in the figure below. What will be the electric…

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Q: Two vectors are given as follows A = -3i + 6j - 5k and B = -2i + 3j + k. What is the difference…

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Q: rock is tied to a 2 m long string and spun in a horizontal circle. The rock has  an acceleration of…

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Q: An ambulance is passing by a stationary detector emitting a 495 Hz signal . The detector measures a…

A: We use Doppler effect of sound to solve this problem

Q: ad/s2 c = 0.025 rad/s3 Part (a)  Determine an equation for the angular speed of the ride as a…

A: Givenθ(t) = a + bt2– ct3where a = 1.1 rad, b = 0.35 rad/s2 and c = 0.025 rad/s3

Q: A bowling ball of mass m = 1.9 kg is resting on a spring compressed by a distance d = 0.21 m when…

A: bowling ball of mass m = 1.9 kg is resting on a spring compressed by a distance d = 0.21 m when the…

Q: determine the values of resistors a) b) and c) from left to right.

A: ANS:The value of the resistance is 27±2·7 ohm

Q: A typical flashlight bulb is rated at 8 W. If the lightbulb drops 4.5 V, a) Draw a sketch of the…

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Q: What is the magnitude of the magnetic field at the center of a loop of radius R = 5 cm and carrying…

A: Given data :- Radius R = 5 cm = 0.05 m Current I = 2 A μo/4π = 10-7  T.m/A

Q: If an object weighs 702 N on Earth and 5320 N on the surface of a nearby planet, what is the…

A: GivenWeigth of object at earth, WE=702 NWeight of object nearby planet, WP=5320 N

Q: digit multiplier Black x 100 Brown x 101 Red 2 X 102 Orange x 103 х 104 1st digit 2 - 2nd digit 7…

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Q: Inside a sphere of radius 12 cm are 8.0x10²³ gas molecules at a temperature of 50°C. What pressure…

A: we use PV=nRT. where n is the number of moles

Q: There are 2.375 x 10^19 electrons passing through a headlight. What will be the voltage of the car…

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Q: QUESTION 39 As shown in the figure below, Blocks A and B, with masses of ma and mB respectively, sit…

A: For rotation equilibrium net torque should y equal to zero

Q: if a mass of a person is 55kg. What is his weight on the moon? gm= ge/6 Select one: a. 150N O b.…

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Q: An astronomer wishes to measure on a photograph the distance between the image of a certain star and…

A: Formula

Q: A cyclist cycles north at a rate of 20m/s and then speeds up to 30m/s after 10 seconds. What is the…

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Q: A 1.14 kg block of wood is suspended from a light string and is initially at rest.  The string is…

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Q: A block weighing 200N is supported by three as shown. Find tension T2. 60° T2 T3 w Select one: а.…

A: weight of block = 200 N

Q: A 120 V house circuit fused for 25 A has operating on it the following: two 75 W bulbs, a 1500 W…

A: If resistance is connected in parallel with the battery then   Power loss, P =V2RR =V2P

Q: The pipes of a pipe organ function as open pipes (open at both ends). A certain pipe must produce a…

A: Determine the speed of sound at a temperature of 150C.

Q: An object with mass m1 = 42 kg is located at the origin. Another object with mass m2 = 86 kg is…

A: m1 = 42 kg m2 = 86 kg la= 0.035 m lb = 0.105 m

Q: Problem #4–The two blocks in the figure are connected by a massless rope that passes over a pulley.…

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Q: The figure shows a transverse wave travelling on a string of linear density 0.065 kg/m. The tension…

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Q: Topic: LATENT HEAT OF FUSION OF ICE Question: Why must you wipe dry ice before putting them into…

A: If the ice is not dried there will be water at zero degrees celsius. This water will contribute to…

Q: Because of its changing proximity to the Sun, which property does Kepler's Second Law of Planetary…

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Q: QUESTION 11 Calculate the speed at which a 90.7 m radius curve banked at 57.3' should be driven if…

A: Given data- radius of curve R=90.7 m banked angle θ=57.3°

Q: Problem 3:  Suppose a 500-mL beaker is filled to the brim with ethyl alcohol at a temperature of…

A: Given Volume of the beaker is V=500 mL Initial temperature is ti=5.00°C Final temperature is…

Q: Three beads are placed on the vertices of an equilateral triangle of side d = 4.1 cm. The first bead…

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Q: m resting on a 20° slope. The block has coefficients of friction μs = 0.64 and μk = 0.54 with the…

A: Givenθ=20°μs=0.64μk=0.54Mass of hanging, m=2 kg

Q: If a car takes a banked curve at less than a given speed, friction is needed to keep it from sliding…

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Q: 23. Water flows at a speed of 14 m/s through a pipe that has a radius of 0.91 m. The water then…

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Q: A Sony Bravia 75 inch TV dissipates 115 W when it is plugged into a 120 V outlet. a). Find the…

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Q: 1. In a television picture tube, electrons strike the screen after being accelerated from rest…

A: Answer:- 9.37 × 107 m/s    Given  Mass of electron (m) = 9.1 × 10-31 kg  Charge of electron (q) =…

Q: By using a simple and practical example, explain that based on the choice of one's system of study,…

A: When a force acting on a body displaces it over a certain distance, work is said to be done. Work is…