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The trap-jaw ant can snap its mandibles shut in as little as 1.1 x 10-4 second. In order to shut, both mandibles rotate through a 97 degree angle. Find the average angular velocity of one of the mandibles of the trap-jaw ant when the mandibles snap shut?
An electron traversing a resistor in an electronic circuit has no more kinetic energy when it exits the resistor than it had when it entered the resistor; however, this electron certainly has lost electrical potential energy. Explain this paradox
a 60 g piece of ice at an initial temperature that is unknown is placed into a glass of 250 g of water sitting at room
A diverging lens has a focal length of absolute value 25.0 cm. Areal object is placed 3100 cm from the lens. determine whether the image is real or virtual
A 2.65-g copper coin at 21.5°C drops 60.0 m to the ground. (Assume the specific heat of copper is 387 J/kg · °C.) determine the coin's final temperature
a worker pushes horizontally on a large crate with a force of 308 n and the crate is moved 5.3 m. how much work was
Over a time interval of 2.16 years, the velocity of a planet orbiting a distant star reverses direction, Find the total change in the planet's velocity in m/s
Two negative point charges are separated by 16 and feel a mutual repulsive force of 1.55. The charge of one is three times that of other.
The leg and cast weigh 290 -N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w2 weighs 120 N. Determine the weight w1 and angle α needed in order that there is no force exerted on the hip joint by the le..
A boy of mass 60.0 kg is rescued from a hotel fire by leaping into a firefighters' net. The window from which he leapt was 8.0 m above the net. What is the average force on the net due to the boy during the interval
a rocket of mass m is fired vertically upward from rest. the rockets engine produces a thrust of constant magnitude
A dragster accelerates to a speed of 100 m/s over a distance of 398 m. Determine the acceleration (assume uniform) of the dragster
The wavelength of light from a monochromatic source is measured to be 6.80 X 10^-7 m. What color would you observe
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