A sewing machine needle moves with a frequency of 2.5 Hz. Approximately how long does it take it to move from the highest point to the lowest point in its travel?

Q: An object moves in a circle of radius R at a constant speed with a frequency of 4.9 rev/s. Its…

A: The acceleration of the object, a=8.5 m/s2   The angular speed, ω=4.9 rev/s

Q: 3 Tumblr ll 7:28 PM @ 1 0 36% Done 3 of 3 *22 The position of a particle moving along the x axis…

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

Q: An ultrasonic transducer that is used for medical diagnosis, oscillates with a frequency of 7.5 MHz.…

A: Given data:  Frequency (f) = 7.5 MHz = 7.5×106 Hz Required: Period (T)

Q: The speed of ultrasound in human body is 1540 m/s. A procedure is performed with a frequency of 2…

A:

Q: The motion of a body is described by the equation y = 2.70 sin(0.160πt), where t is in seconds and y…

A:

Q: Which period corresponds with the LOWEST frequency

A: Option D (1000ms) is the right answer.

Q: A train at a speed of 40.8 m/s sounds it whistle, which has a frequency of 4.88 x 10² Hz. Determine…

A:

Q: A police car has a siren that generates a frequency, f, at rest. It is behind you, traveling at a…

A: Doppler Effect refers to the change in wave frequency during the relative motion between a wave…

Q: 3.) A paper has size 216 mm x 279 mm (8.5 in x 11.0 in). Ten sheets of paper weigh 4.54 g (ounce).…

A: Given:Area of 1 sheet of paper, A = 0.216m×0.279m = 0.0602 m2weight of 10 paper sheets, 10×m = 4.54…

Q: The displacement of the tip of the 10 cm long minute hand of a clock between 12:15 A.M. and 12:45…

A:

Q: A pendulum swings back and forth 10 times every 4 seconds. What is the frequency of the pendulum?…

A:

Q: The displacement of a mass suspended by a spring is modeled by the function h(t) = 11 sin(8nt) Where…

A: Displacement of a mass suspended by a spring is modelled by; h(t)=11sin8πt Here, h(t) is…

Q: A mass is tied to a spring and begins vibrating periodically. The distance between its highest and…

A: Given:  distance between its highest and its lowest position = 38 cm

Q: An object attached to one end of a spring makes 20 vibrations in 10 s. What is its frequency? O 2 s…

A: Given data:  Number of vibrations = 20 Time (t) = 10 s Required: Frequency (f)

Q: A spinning top completes 18 revolutions every 4.0 s The frequency of its motion would be Hz.

A: Given Number of revolution is given as N=18 Time taken to complete the revolution is t=4.0 s   We…

Q: 20. What is the standard deviation in °C? A. 0.4 B. 0.36 C. 0.358 D. 0.3578

A:

Q: What is the sine of 30°?     1.     0.     -0.988     0.5     0.866     0.707

A: Given: The angle is 30o. To find: sin value of given angle.

Q: A cord is connected to a vibrating machine which has a frequency of 120 Hz. The linear mass density…

A: v=Fμ=5 kg10 m/s20.05 kg/m=31.6 m/s

Q: What is period in seconds, that corresponds to each of the following frequencies (a) 10Hz (b) 0.2Hz…

A: (a) Time period is,

Q: Find the maximum acceleration.

A: Find  answers of both parts in steps below

Q: Two cars are on the same straight road. Car A moves east at 55 mph and sounds its horn at 625 Hz.…

A: The frequency observed by the car B’s driver can be found using the concept of Doppler effect.…

Q: If the initial time is t = 0 s and the final time is the final time shown on the graph, select…

A: The figure we have been given is:

Q: If an object travelling in a circle with a radius of 5.0 m has a frequency of 6.0 Hz, what is the…

A: Given :  Radius of the circle, r = 5 m Frequency of the object, f = 6.0 Hz

Q: A hypnotist's watch hanging from a chain swings back and forth every 0.61 s. What is the frequency…

A: The equation for the frequency of oscillation is given by,

Q: If your heart is beating at 76.0 beats per minute, what is the frequency of your heart's…

A: Given that:- Heart is beating at 76 beats per minute.

Q: The period of oscillation of molecules is of the order of 10-15s. The corresponding linear and…

A:

Q: A cord is connected to a vibrating machine which has a frequency of 120 Hz. The linear mass density…

A: The frequency of the vibrating machine is f = 120 Hz. The linear mass density of the string is µ =…

Q: If a pendulum is swinging at 1 Hz, what is its period in seconds?

A: Oscillation is the to and fro motion of a particle about a mean position.  A pendulum oscillates to…

Q: What positive value of x/A gives v= 0.56 v_max, where A is the amplitude of the motion?

A: we have v=ωA2-x2vmax=Aω⇒v=vmaxAA2-x2=vmax1-x2A2

Q: A cord is connected to a vibrating machine which has a frequency of 120 Hz. The linear mass density…

A: Given : Frequency (f) = 120 Hz Linear mass density (µ) = 0.05 kg/m Mass (m) = 5 kg g = 10 N/kg…

Q: A pendulum completes 75 swings in 25 s. What is its frequency? O 3.0 s 0.33 Hz O 3.0 Hz 0.33 s None…

A:

Q: a. Frequency = 2 Hz period = seconds b. Frequency = 1/2 Hz period = seconds Frequency = C. Hz period…

A: GivenPeriod=1frequency

Q: A spring makes 8 oscillations in 16 seconds. Its period and frequency are, respectively, about:…

A: Given data:  Number of oscillations = 8 Time (t) = 16 s Required: The period (T) and frequency (f)

Q: A person’s heart rate is given in beats per minute. Is this a period or a frequency?

A:

Q: An echo is heard after 5 seconds of the production of sound which moves with a speed of 340 m/s.…

A: We know that formula for speed is: speed=distancetime Hence, Distance=speedtime

Q: The motion of a body is described by the equation y = 2.10 sin (0.170πt), where t is in s and y is…

A: The given equation y = 2.10 sin (0.170πt)  is the equation of Simple Harmonic Motion which has a…

Q: Bicycle wheel rotates uniformly through 4.0 revolutions in 2.0 s. What is the frequency of the…

A: Given, Number of revolution = 4.0  Time taken = 2 s Frequency of wheel is equal to number of…

Q: It is the time for one oscillation. A. Amplitude B. Period C. Acceleration D. Frequency

A: We know, The time interval required to complete one oscillation is known as Period.

Q: 3. This is measured in revolutions per second (rev/s).* A.Period B.Frequency C.Speed D.Angular…

A: To choose correct option of physical quantity which is measured in rev/s.

Q: The motion of a body is described by the equation 3.25 sin (0.320πt), where t is in seconds and y is…

A: a. the general expression of motion of body is  y=Asinωt

Q: The position of a mass oscillating on a spring is given by (1.8cm) cos(21t) What is the frequency of…

A: Given: x= (1.8cm)cos (21t)

Q: The motion of a body is described by the equation y =2.70 sin(0.160πt), where t is in seconds and y…

A:

Q: A simple pendulum oscillates with a frequency of 6.1 Hz.  How long (in centimeters) is the pendulum?

A:

Q: A mass mm at the end of a spring oscillates with a frequency of 0.86 HzHz . When an additional 780…

A:

Q: On an average a human heart is found to beat 75times in a minute. Calculate its frequency and…

A: Number of beats in a min,

Q: In the aftermath of an intense earthquake, the earth as a whole “rings” with a period of 54 minutes.…

A: Given that The time period T = 54 minutes T=54×60=3240 sec We Know that T=1ν where v represent the…

Q: A sewing machine needle moves with a frequency of 2.5 Hz. Approximately how long does it take it to…

A: The frequency (f) of the needle of the sewing machine is given. Calculate the time period (T) of its…

Q: 2021/4/27 14:40 P. 4 m (20 seconds) (a) 0.2 (c) 12 (b) 20 (d) 0.4 43. The ratio of the unit of…

A: To determine: The ratio of unit of acceleration and velocity gives unit of which physical quantity.…

Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.