What frequency will the force make the object vibrate

Assignment Help Physics
Reference no: EM1322235

Q1. Damping is negligible for a 0.15kg object hanging from a light 6.30 N/m spring. A sinusoidal force with amplitude of 1.70N drives the system. At what frequency will the force make the object vibrate with amplitude of 0.440m?

Q2. A person driving her car at 49 km/h approaches an intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 2.0 s before turning to red, and she is 30 m away from the near side of the intersection . The intersection is 15 m wide. Her car's maximum deceleration is -5.4 m/s2, whereas it can accelerate from 49 km/h to 70 km/h in 6.3 s. Ignore the length of her car and her reaction time. If she hits the brakes, how far will she travel before stopping? If she hits the gas instead, how far will she travel before light turns red?

Reference no: EM1322235

Questions Cloud

A father and a daughter balance a teeter totter : A father and a daughter balance a teeter totter
What is the charge on the sphere : What is the electric field strength at midpoint between two disks.What is the electric field strength a point on axis 5.0 cm from one disk between them.
The gravitational force between two masses : The gravitational force between two masses M and m separated by a distance r is 40 N. What is the new force when this distance is halved?
At the instant she contacts the water her speed : At what angle have to the laser beam in the diagram be aimed at mirrored ceiling in order to hit the midpoint of the far wall? The length of the room is a=4.9 m and its height is b=3.00 m.
What frequency will the force make the object vibrate : A person driving her car at 49 km/h approaches an intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 2.0 s before turning to red, and she is 30 m away from the near side of the intersection .
What is the minimum time needed before it can come : A car is behind a truck going 25m/s on the highway. The car's driver looks for an opportunity to pass, guessing that his car can accelerate at 1.0m/s2. He gauges that he has to cover the 20-m length of the truck, plus 10m clear room at the rear of..
A stone is thrown vertically upward with an initial : A stone is thrown upward with an initial speed of 20 m/s. What is its acceleration at the highest point of its trajectory?
How far is your hometown from school : A helicopter is ascending vertically with a speed of 5.02m/s. At a height of 140m above the Earth, a package is dropped from the window. How much time does it take for the package to reach ground.
What is the time needed to take off : The cubit is an ancient unit. Its length equals six palms. (A palm varies from 2.50 to 3.50 inches depending on the individual.) We are told Noah's ark was 300 cubits long, 50 cubits wide and 30 cubits high.

Reviews

Write a Review

Physics Questions & Answers

  What is wavelength of the x-ray photon

What is wavelength of the X-ray photon

  What range of speeds can a car safely make curve

The loaded cab of an elevator has a mass of 3.7 x 10^3 kg and moves 228 m up the shaft in 21 s at constant speed. At what average rate does the force from the cable do work on the cab.

  With what speed does it head toward the goal

The suspended 2.82 kg mass on the right is moving up, the 2.2 kg mass slides down the ramp, and the suspended 8.1 kg mass on the left is moving down. There is friction between block and ramp. What is the acceleration of a three block system.

  What is the magnitude of an average force

If the contact time with the sidewalk is 1800s, what is the magnitude of an average force exerted on the superball by the sidewalk.

  What is the acceleration at point a

A sample of animal bone unearthed at an archaeological site is found to hold 173 grams of carbon and the decay rate of 14-C in the sample is measured to be 8.10 Bq. How old is the bone.

  What is the new coefficient of friction

In outer space, far from other objects, block 1 of mass 30 kg is at position m, and block 2 of mass 1350 kg is at position m. What is the (vector) gravitational force acting on block 2 because of block 1? It helps to make a sketch of the situatio..

  What speed does the man obtain as a result

A 4.20 kg model rocket is launched, expelling 57.0 g of burned fuel from its exhaust at a speed of 675 m/s. What is the velocity of the rocket after fuel has burned.

  The magnitude and direction of the electric field

A 2.00-m tall basketball player is standing on the floor 10.0 m from the basket. If he shoots the ball at a 30 degree angle from the horizontal, at what initial speed must he throw the ball so that it goes through the basket without striking the back..

  Establish the temperature at the interface

Establish the temperature at the interface

  What is the tension between each cable

At one instant a bicyclist is 75m due east of a park's flagpole, going due south with a speed of 13.0 m/s. Then, 10s later, the cyclist is 65 m due north of flagpole, going due east with a speed of 20.0 m/s.

  How much energy was released in an explosion

How much energy was released in an explosion

  How long after the second ball is thrown

Two projectiles are thrown with the same initial speed, one at an angle with respect to the level ground and the other at angle 90 degree. Both projectiles strike the ground at the equivalent distance from the projection point. Are both projectiles i..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd