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Determine the stopping distances for a car with an initial speed of 95 km/h and human reaction time of 1.0s for an acceleration?
(a) a = - 4.0m/s2
(b) a = - 8.0 m/s2.
A 5 kg block slides on a horizontal, frictionless surface with a velocity of 2 m/s. What is the common velocity of the masses
To avoid a rear-end collision with a slow moving vehicle ahead, you step on the accelerator and increase your angular speed to 13.4 x 10-2 rads/s in a time of 8 s. What is the tangential acceleration of the car
At t=0 a grinding wheel has an angular velocity of 20.0 rad/s. It has the constant angular acceleration of 29.0 rad/s^2 until a circuit breaker trips at time t = 2.20 s. From then on, it turns through an angle 435 rad as it coasts to a stop at cons..
Two solenoids are used to produce a magnetic field across a cathode-ray tube. Find the field at the center of the CRT
The Sun is approximately a sphere of radius 6.963 105 km, at a mean distance a = 1.496 108 km from the Earth. calculate its surface temperature
Red light (n = 1.520)and violet light (n =1.538) traveling in air are incident on a slab of crown glass. What is the angle ofincidence of the violet light
A model rocket fired vertically from the ground ascends with aconstant vertical acceleration of 54.8 m/s2for 1.05 s. What is themaximum altitude reached
A wave pulse travels down a slinky. The mass of the slinky is m = 0.9 kg and is initially stretched to a length L = 7.3 m. What is the speed of the wave pulse
A very hot piece of iron with mass 1.5kg and initial temperature 755 degrees celcius is placed into a tank of water with total water mass 3.0kg, what is the final equilibrium temperature for the iron and water
Given a wave produced by a simple harmonic oscillator whose displacement in meters is given by the equation [y = 0.3cos(36?t)]
an automobile and train move together along parallel paths at 18.4 ms.the automobile then undergoes a uniform
An FM radio station broadcasts at a frequency of 92.4 MHz. Thepower radiated from the antenna is 68 kW. In one second, how many photons does the antenna emit
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