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A 180 ib soldier had an accident: He fell down from a helicopterhoverin at 150 ft above a sno packed ground. The impact of his bodycreated a 4.1m crater in snow. Convert all units into MKS units andfind:
a) his net acceleration in the snow (m/s^2)
b) the direction of this net acceleration.
A boat heads directly across a river. Its speed relative to the water is 3 m/s. How fast is the boat going relative to the bank of the river
When a mercury manometer is connected to a gas main, the mercury stands 48.9 cm higher in the tube that is open to the air than in the tube connected to the gas main
A stone is shown at rest on ground. at. The vector shows the weight of the stone. Complete vector diagram showng another tha results in zero net force on the stone. b. What is the conventional name of the vector you have drawn.
An iron tower in is 39 meters tall on a cold day, What is the HEIGHT of the tower on a hot day when the temp is 31.5 degrees Celcius
An insulated Thermos contains 131 cm3 of hot coffee at 82 °C. You put a 12g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though ..
The four tires on the author's car are inflated to an absolute pressure of 2.7x10^5 Pa. obtain the contact area between each tire and the ground
Objects A and B are both positively charged. Both have a mass of 400g , but A has twice the charge of B. When A and B are placed 25cm apart, B experiences an electric force of 0.54N . What is the charge on A? If the objects are released, what is t..
question1a 35 kg uniform ladder is leaned against a building. the 5 meter tall ladder makes an angle of 60 degrees with
The period of a physical pendulum is measured first at sea level, where the pendulum completes 100 cycles in 1561 s, and then on a mountaintop, find the height of the mountain
Light from an argon laser strikes a diffraction grating that has 5390 grooves per centimeter. Determine the wavelength of the laser light
A grasshopper jump 1.00 meter from rest, with an initialvelocity at a 45 degree angle with respect to the horizontal. Find the initial speed of the grass hopper
A javelin is thrown at an initial speed of 28.5 m/s at an initial height of 1.93 m above the ground, Find this maximum range
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