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Question1
A hot-air balloon is downward at a rate of 2.4 when a passenger drops a camera. If a camera is 48 above the ground when it is dropped, how long does it take for the camera to reach the ground? If camera is 48 above the ground when it is dropped, what is its velocity just sooner than it lands? Let upward be positive direction for this difficulty.
Question2
Paleontologists estimation that if a Tyrannosaurus rex were to trip and fall, it would have experienced the force of approximately 260,000 acting on its torso as it hit the ground. Assuming the torso is in free fall for a distance of 1.27 as it falls to the ground, how much time is necessary for the torso to come to rest once it contacts the ground?
A jeweler examines a diamond with a magnifying glass. find the angular magnification when the diamond is held 5.39cm from the magnifying glass
When you take a bath, how many kg of hot water (49 oC) must you mix with cold water (13 C) so that the temperature of the bath is 36 oC? The total mass of the water (hot and cold) is 191-kg.
How does the mass and electric charge of a proton compare with the mass and charge of an electron?
Four charged particles rest at the corners of a square of side a = 0.30 m. Charges 1 through 4 are 10, 20, 30 and 40 µC, Determine the electric field at the center of the square
You are designing a precision mercury thermometer based on the thermal expansion of mercury, Determine the initial volume of mercury that allows this change, Find the radius of a spherical bulb that contains this volume of mercury
When the walkway exerts a load force of 9900 N on one of the support points, through what distance does the point move down?
Calculate for the capacitance, the charge of plate, and magnitude of electric field between the plates for a capacitor whose plates are 11 mm apart are 2.00 m-2 in area and being connected to a source with potential difference of 270V.
You are pushing a 150-kg wooden crate in a straight line a distance of 4.5 m across a wooden floor at constant speed. What is the work done by friction on the crate
What is the magnitude of an object's average velocity if an object moves from a point with coordinates x = 2.54 m, y = -3.56 m to a point with coordinates x = 7.85 m, y = -6.54 m in a time interval of 2.02 s.
If the entrance velocity into the pipe is 12.5 m/s, what is the rate of flow of the material (air) 'Rm'? What is the velocity 'Vf' when the air is ejected into the surroundings at 1 atm through a nozzle
The spring is then released. If the mass is attached to the spring, explain how far up the slope will the mass move before coming to rest? Express your answer using two significant figures.
A racer starts her car from rest and accelerates at 10m/s2 for a distance of 400m (1/4mi)
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