A mortar shell is launched with a velocity of 100 m/s at an angle of 30.0° above horizontal from a point on a cliff 50.0 m above a level plain below. How far from the base of the cliff does the mortar shell strike the ground?
What will be an ideal response?
963. m
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A) The Sun's gravity B) The orbital and rotational motion of the Earth and Moon C) The heat from Earth's core D) The movement of the Earth's oceans. E) The temperature difference between the Moon's surface and its core
A rock is suspended from a scale reads 10.0 N. A beaker of water is raised up so the rock is totally submerged in the water. The scale now reads 6.25 N.What is the density of the rock?
A) 2.00 times the density of water B) 2.33 times the density of water C) 2.67 times the density of water D) 3.00 times the density of water E) 2.50 times the density of water
A bimetallic strip is usable in a thermometer because of its heat capacity
a. True b. False Indicate whether the statement is true or false
During an isochoric process, the internal (thermal) energy of a gas decreases by 50 J. How much energy via heating is added to the gas during this process?
A) 0 J B) 50 J C) -50 J D) 25 J E) -25 J