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Problem: A car has a mass of 1500 kg. If the driver applies the brakes while on a gravel road, the maximum friction force that the tires can provide without skidding is about 7000 N.
Problem: If the car is moving at 29 m/s, what is the shortest distance in which the car can stop safely?
I don't know how to get that answer for the above problem. Please help! Thanks.
The temperature inside the refrigerator is 2.0 °C. It stands in a kitchen whose temperature is 22 °C, what is the entropy change of the kitchen
How much work is done in stretching the spring. Find out the constant acceleration of the car.
A 6,000 lb car is traveling SW at 40 mph. it is hit by another car that weighs 7,000 lb and is traveling NNE at 50 mph. What is the speed and direction of the cars immediately after the collision
Bill and Ted support either end of a 5m long, weightless board. A box weighing 88N sits on the board a distance of 1.5m from Bill. Find the forces that Bill and Ted must exert to maintain equilibrium
In a series R-L-C circuit, R= 360 Ω, L= 0.410 H and C= 1.1 x 10-2 μF. Find the resonance angular frequency of the circuit
Estimate the force on a 145-gram baseball if it hits the bat at 50 miles per hour and stays in contact with the bat for 0.1 second
A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. What would be the speed of the wave on the longer wire
The drawing shows a graph of two waves traveling to the right at the same speed. (a) Using the data in the drawing, determine the wavelength of each wave. (b) The speed of the waves is 12 m/s; calculate the frequency of each one. (c) What is the maxi..
Calculate the gyrofrequency of an electron in Earth's magnetic field, having a value of ~ 35 A-m-1. Determine the electron density values required to produce a zero refractive index for the case of propagation parllel to Earth's magnetic field at a f..
An object is placed 17.6 centimeter in front of a convex mirror, the image being 7.26 centimeter behind the mirror. Find how far in front of the mirror is second object placed
A 5 kg chunk of ice is sliding at 12 m/sec on the floor of an ice covered valley when it collides with and sticks to another 5 kg chunk of ice that is initially at rest. how far up the valley will the combined chunks go
An observer on earth sees an alien vessel approach at a speed of .6c. A second spaceship comes to the rescue overtaking the aliens while moving directly toward Earth at a speed of .90c relative to earth.
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