0. Jack throws a ball at an angle of 60° above the horizontal from the top of 45 m tall building. If it strikes the ground 50 m away find: ) Time of flight (Ans: 5.18 s) -) Initial speed with which he throws the ball. (Ans: Vo =19.29m/s ) E) Final speed with which it strikes the ground. (ans: Vf = 35.40m/s)

Q: 2. We normally use kilometer (SI unit) for distances rather than miles (English unit). If 1.0 mi is…

A: 1 mi = 1.609 km Population density = 119,600 per 1 sq mi We have to perform unit conversion.  per 1…

Q: Differentiate dimension versus unit.

A:

Q: The measured distance on the ground between two points is 6.85 km. If the corresponding distance…

A: A map is an accurate visual representation of a physical feature that has been reduced to fit on a…

Q: Can I get help undertanding how to calculate Elevation change from A-B? and then the second part on…

A: Pythagoras Theorem If the length of the hypotenuse of a triangle is h, the length of the base is b…

Q: Translate to a system of equations and solve.   A small jet can fly 1,088 miles in 4 hours with a…

A: x=Speed of the jety=Speed of the windDistance traveledTime taken=4 hours

Q: 4. Calculate the altitude ZGEO and speed VGEO of a geostationary earth satellite.

A: Given: The geostationary gravitational constant is μ=3.986×105 Km3s2. The radius of the earth is…

Q: Oxygen Atoms in People. Figure 5.7 shows that oxygen makes up about 65% of the mass of a human…

A: The objective of this question is to estimate the number of oxygen atoms in a human body and compare…

Q: (b) The student drops the marble from different heights and measures the diameter of each crater…

A: (b) The student's result is given in the following table:(i) The graph of the student's result is…

Q: In astronomy, distances are often expressed in light-years. One light-year is the distance traveled…

A: Data Given ,  1 light year is the distance traveled by light in one year . 1 year = 365.25 days…

Q: What is the number of miles in a light-year, using (see picture) mi/s as the speed of light? I know…

A: The speed of the light in mi/s, c=1.86×105 mi/s   The time interval, t=1 year

Q: Density is always expressed as mass per unit volume. If an organic liquid has a density of 0.9 grams…

A: density of liquid = 0.9 gramscm31 ft3 = 7.481 gallons

Q: The price of gasoline at a particular station is 60 pesos per liter. A student can use 1320 pesos to…

A:

Q: 1. Unit vectors usually have a magnitude of 5. 2. The acceleration due to gravity in English unit is…

A: Answer:-  Answer (1) wrong  The magnitude of unit vector is 1 or unity.  Answer (2) wrong…

Q: Convert (6.963x10^7) cm to kilometers. Use the abbreviated form of the unit in your answer.

A: Given,  Length = 6.963 × 107 cm  We need to convert it in kilometers.

Q: What does navigation mean?

A: It is the science by which we determine the position of  ships, aircraft, or spacecraft from place…

Q: equation 2 is incorrect that is why i posted it again please look at the question again

A: We have given two equation in previous answer, i.ethe first one is taken as correct but the second…

Q: Dan watched a beetle and a spider on the sidewalk. The beetle crawled ( 11)/(2) yards and the spider…

A: Subtracting the distance travelled by the spider from the distance travelled by the beetle will…

Q: 1%38 cm MASS of the obje a. Volume of th (Hint: V = b. Density of th (Hint : Den= C. Given that de…

A: Given data: Length of the object, l=8 cm Width of the object, w=6 cm Height of the object, h=5 cm…

Q: what causes us to experience a year

A: The main two seasons (winter and summer) help us to experience a year. The earth rotates around the…

Q: why do you think the unit circle is important?

A: The unit circle is useful to find the trigonometry functions like sine, cosine and tangent of an…

Q: What is the size of 1 Angstrom? O1x 10^-10 cm 1 x 10^10 m O 1 x 10^10 cm 1 x 10^9 m O1x 10^-10 m

A: Given    Length = 1 Angstrom    1 Angstrom is 10-10 th part of one meter length  Therefore  1…

Q: a) What is the orbital speed of the telescope?l b) What is the period of the telescope?!

A: Given: The altitude of the Hubble telescope: h= 568 km We need to find the orbital speed and time…

Q: A point-mass of 17 grams at the end of a massless 20 centimeter long string is rotated at a rate of…

A:

Q: what is the density of the earth if the average mass is 5.98X10^24 kilogram and using the average…

A:

Q: nd the opening (2 mm from the light source), the illuminated area covers 4 m2m2. How many square…

A: Given:- A small light source located 1 m in front of a 1-m2  opening illuminates a wall behind.  If…

Q: The closest star to Earth, after the Sun, is Proxima Centauri, which is just over 4 light years away…

A: We know that, the speed of light is 3 × 108 m/sec or         3 × 105 km/sec Given that, Proxima…

Q: world’s largest cut diamond id the First  Star of Africa. Its volume is 4.81 cubic inches. What is…

A:

Q: alculate magnitude in coloumbs law

A:

Q: a toy airplane takes off and flies for a distance of 34 meters at an angle of 26 degrees above the…

A: in this question  we determine altitude  of toy plane.

Q: It is important to have an idea about the distances between and relative sizes of celestial objects…

A:

Q: which is greater 10 centimeters or 103 millmeters? How much greater?

A: We know, 1 centimeter (cm) = 10 millmeters (mm)

Q: The density of an object is 80kgm-3. Calculate the mass if the volume is 25m3

A: Given : Density (ρ) = 80 kgm-3 Volume (V) = 25 m3

Q: 7. The velocity of a particle is given by the first integral of its equation for its position. 8. 1…

A: 7. Velocity can be defined as the rate of change of the object’s position with respect to a frame of…

Q: How do you figure question 1

A:

Q: Was really confused on this and needing help please. I need to know what the trend line equation is,…

A: Let us first consider the refrigerator.  Below is the plot of its force vs acceleration :

Q: Answer in terms of calculus. Look at pics for question.

A: Given Information: The location of the charge "q" = (0, y) The point where the electric field is…

Q: In astronomy, distances are often expressed in light-years. One light-year is the distance traveled…

A:

Q: Is it possible to estimate data while looking at the larger picture? Is it possible for a student to…

A: Yes, it possible to estimate data while looking at the larger picture.Often done in statics and data…

Q: it View History Bookmarks Profiles Tab Window Help m Set #10: Ch. 11-Ro X WP NWP Assessment Builder…

A: The objective of the question is to find the initial speed of the ball at point P so that it lands…

Q: Why is it a fallacy to confuse causation and correlation? Provide an example of a statement that…

A: We have two problems given to solve. 1. Why is it a fallacy to confuse causation and correlation? 2.…

Q: Considering that you would stop to rest for 10 hours after every 11 hours of driving, if you can…

A: 10 hrs rest after every 11 hrs v=55mph D=2255 mile

Q: how can we convert km/hr to m/s

A: Convert of km/hr to m/s. is shown below:

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.