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Please answer all  my questions correct !!

Please answer all  my questions correct !!

Please answer all  my questions correct !!

Please answer all  my questions correct !!

A second rock is thrown straight upward with a speed 6.000 m/s, If this rock takes 1.828 s to fall to the ground, from what height H was it released? Express your answer in meters to three significant figures A rock thrown with speed 12.0 m/s and launch angle 30.0 (above the horizontal) travels a horizontal distance of d- 19.0 m before hitting the ground. From what height was the rock thrown? Use the value g 9.800 m/s2 for the free-fall acceleration. ANSWER 1: View Available Hint(s) H- 1.7846 m ANSWER 2 H- 16.67 H-1.785 m Submit Previous Answers ANSWER 3 H-0.6036 m X Incorrect; Try Again; 5 attempts remaining ANSWER 4: Provide Feedback |H= 1.2244 m

Quantities with physical dimensions like length or time must be measured with respect to a unit, a standard for quantities with this dimension. For example, length can be measured in units of meters or feet, time in seconds or years, and velocity in meters per second When solving problems in physics, it is necessary t consistent system of units such as the International System (abbreviated SI, for the French Système International) or the more cumbersome English system. In the SI system, which is the preferred system in physics, mass is measured in kilograms, time in seconds, and length in meters. The necessity of using consistent units in a problem often forces you to convert some units from the given system into the system that you want to use for the problem. o use a The key to unit conversion is to multiply (or divide) by a ratio of different units that equals one. This works because multiplying any quantity by one doesnt change it. To illustrate with length, if you know that 1 inch-2.54 cm, you can write -2.54 cm To convert inches to centimeters, you can multiply the number of inches times this fraction (since it equals one), cancel the inch unit in the denominator with the inch unit in the given length, and come up with a value for the length in centimeters. To convert centimeters to inches, you can divide by this ratio and cancel the centimeters

How many centimeters are there in a length 72.6 inches ? Express your answer in centimeters to three significant figures. 120 cm Submit Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining

Suppose that a particular artillery piece has a range R = 8800 yards . Find its range in miles. Use the facts that 1 mile = 5280 ft and 3 ft 1 yard. Express your answer in miles to three significant figures. View Available Hint(s) 8800 yards- miles

What is the speed of a car going u = 1.000 mph in SI units? Notice that you will need to change from miles to meters and from hours to seconds. You can do each conversion separately. Use the facts that 1 mile 1609 m and 1 hour = 3600 s. Express your answer in meters per second to four significant figures. View Available Hint(s) ΑΣ m/ s

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cos 30 disdance spe e hi 1828 27585 s t cos 30 2 tos 30° Sin38 in moguituda)= 1.828s 2. = _ s. 4057616 wれcle 72.6 inch.ג ー(q2.bx 2.5*)cv.^ 0o 5280 3600 04469 ms

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