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The driver of a pickup truck going 100 km/h applies the brakes, giving the truck a uniform deceleration of 650 m/s² while it travels 20.0 m.
(a) what is the speed of the truck in kilometers per hour at the end of this distance?
(b) How much time has elapsed?
A 200 g block attached to a horizontal spring is oscillating with an amplitude of 2.0 cm and a frequency of 4.0 Hz. What is the new amplitude
A rescue helicopter is lifting a man (weight = 719 N) from a capsized boat by means of a cable and harness, What is the tension during the remainder of the rescue when he is pulled upward at a constant velocity
An iron wire with a diameter of 1.2 mm has a uniform electric field of 0.35 V/m imposed along its entire length. What is the current density in the wire
What is its velocity at impact? What will its average velocity be? What will its average speed be.
A uniform rod of length 0.790 m and mass 14.50 kg is balanced on a sharp edge at 0.650 m from the left end. At the left end hangs a mass of 45-kg and the right end hangs an unknown mass so that the whole assembly is in equilibrium.
Two coils are close to each other. The first coil carries a time-varying current given by I(t) = (5.80 A) e-0.0250tsin(377 t). What is the mutual inductance of the coils
A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. What is the amplitude A of each wave
Explain any advantages in using Conservation of Energy method to determine initial projectile velocity
If this lens is then immersed in water with a refractive index of 1.33, what will the focal lens of the lens be in this environment
What is the frequency of ultrasound in a medium if he wave length is 3.0 x 10^-3 m and velocity is 1300 mm/ms.
At t=0, the displacement x(0) of a block attached to a spring is -850 cm. The block's velocity v(0) is then -.920m/s, what is the abgular frequency of this system
On a perfect fall day, you are hovering at low altitude in a hot-air balloon, accelerated neither upward nor downward. What is the weight of the displaced air
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