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A 1.0 metal head of a geology hammer strikes a solid rock with a velocity of 5.0 m/s. Assuming all the energy is retained by the hammer head, how much will its temperature increase? (Chead=0.11 kcal/kg degrees C) 1/2 m v^2 = mc Deltatemp solve for deltaTemp.
A beam consisting of 8.22x10^16 electrons/sec passes through a region of vacuum. A) What magnetic field would be measured 1.50cm away from the center of the beam?
Two identical speakers are driven by the same oscillator @ 200Hz. They are located on a vertical pole & 4.00 m apart. A man walks straight towards the lower speaker perpendicular to the pole.
when it falls back it hits the ground with speed v1=50m/s. The mass of the ball is m=20g. Illustrate what is the total work done by the drag force while the ball is in the air?
A skier with a mass of 59 kg starts from rest and skis down an icy (frictionless) slope that has a length of 44 m at an angle of 32° with respect to the horizontal.
determine the distance between the centers of the two plates.
A typical capacitor in an MP3 player has C = 5 ?F. If a charge ±37 ?C is placed on the plates, what is the voltage across the capacitor?
A plane mirror and the concave mirror (f = 8.70 cm) are facing each other and are separated by a distance of 23.0 cm. An object is placed between the mirrors and is 11.5 cm from each mirror.
If a force vector has a magnitude of 2.61 newtons and points 64.5 degrees south of east, then what is its x-component?
An electron in a circular path perpendicular to a constant magnetic field with a magnitude of 1.00mT. The angular momentum of the electron about the center of the circle is 3.000*10^-25. Evaluate the radius of the circular path
The collar C is moving downward with an acceleration of 1 m/s2. At the instant shown, it has a speed of 2 m/s which gives links CB and AB an angular velocity ωAB = ωCB = 10 rad/s. Determine the angular accelerations of CB and AB at this instant.
Suppose the steel alloy is used for an automobile axle that rotates at an average rotational velocity of 600 revolution per minute (RPM). What is the highest lifetime of continuous driving that are allowable at stress level of 310-MPa.
What is the maximum possible temperature of the cold reservoir.
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