1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ryzh [129]
3 years ago
5

Two stones are launched from the top of a tall building. One stone is thrown in a direction 25.0cm above the horizontal with a s

peed of 18.0 m/s ; the other is thrown in a direction 25.0cm below the horizontal with the same speed. Which stone lands farther away from the building?
Physics
1 answer:
fomenos3 years ago
6 0

Answer:

Explanation:

the one thrown below the horizontal is going straight down, while the one above the horizontal will experience a projectile motion which will makes it move farther away from the building where it was projected.

You might be interested in
If you have two uncertainties, and they are from two different sources and contribute to the uncertainty of a measurement, what
Darya [45]

The propagation errors we can find the uncertainty of a given magnitude is the sum of the uncertainties of each magnitude.

                           Δm = ∑  | \frac{dm}{dx_i} | \ \Delta x_i

Physical quantities are precise values ​​of a variable, but all measurements have an uncertainty, in the case of direct measurements the uncertainty is equal to the precision of the given instrument.

When you have derived variables, that is, when measurements are made with different instruments, each with a different uncertainty, the way to find the uncertainty or error is used the propagation errors to use the variation of each parameter, keeping the others constant and taking the worst of the  cases, all the errors add up.

If m is the calculated quantity, x_i the measured values ​​and Δx_i the uncertainty of each value, the total uncertainty is

                      Δm = ∑  | \frac{dm}{dx_i } | \ \Delta x_i    | dm / dx_i | Dx_i

               

for instance:

If the magnitude is  a average of two magnitudes measured each with a different error

                     m = \frac{m_1+m_2}{2}

                     Δm = | \frac{dm}{dx_1} |  Δx₁ + | \frac{dm}{dx_2} | Δx₂

                     \frac{dm}{dx_1} = ½

                     \frac{dm}{dx_2} = ½

                     Δm = \frac{1}{2} Δx₁ + ½ Δx₂

                     Δm = Δx₁ + Δx₂

In conclusion, using the propagation errors we can find the uncertainty of a given quantity is the sum of the uncertainties of each measured quantity.

Learn more about propagation errors here:

brainly.com/question/17175455

6 0
2 years ago
Identify how scientists use radioactive isotopes by selecting the best answers from the drop-down menus. Archaeologists use radi
salantis [7]

Answer:

Archaeologist use radioactive isotopes to determine the ages of various objects, rocks and materials. This is called radioactive dating. Radioactive isotope Carbon-14 is widely used for this dating process.

Scientists use radioactive isotopes in agriculture to monitor or study the uptake and use of essential nutrients by plants from the soil. This helps to determine viability, productivity and nutritious ability of the plants on a piece of land.

Geologists use radioactive isotopes to trace leaks in underground water storage, pipes. Radioactive isotopes are effective tracers because their radioactivity can be easily detected.

6 0
2 years ago
Read 2 more answers
Can anyone explain and get the answer pls?
Veronika [31]

FL₁ =Fl₂

80.x₁ = 30.7

x₁=2.625 m

6 0
2 years ago
12 x cos 50 = ?<br><br> Does anyone have the answer ? I forgot my my calculator.
Norma-Jean [14]

<em>12 x cos 50</em><em> </em><em>=</em><em> </em><em>7</em><em>.</em><em>7</em><em>1</em><em>3</em><em>4</em><em>5</em><em>1</em><em>3</em><em>1</em><em>6</em><em>.</em><em>.</em><em>.</em>

5 0
2 years ago
Read 2 more answers
Which variable is represented by the following symbol? µ
devlian [24]

Answer:

c. Friction coefficient

is the correct answer

8 0
2 years ago
Other questions:
  • The distance between the earth and sun is 1.5 x 108 kilometers and the speed of light is 3.00 x 108 meters per second. Calculate
    13·1 answer
  • Which wave diffracts the most when encountering an obstacle?
    6·1 answer
  • A student wants to determine the impulse delivered to the lab cart when it runs into the wall. The student measures the mass of
    7·1 answer
  • Which of the following objects has more kinetic energy than it does potential energy? Select the correct answer below:______1.a
    15·1 answer
  • The visible surface of the Sun, which is also the deepest layer we can see with our eyes, is in which region of the Sun?
    10·1 answer
  • The volume flow rate of the water supplied by a well is 2.0×10−4m3/s.The well is 40.0 m deep. (a) What is the power output of th
    12·1 answer
  • Two angles are supplementary. The first angle measures 40°. What is the measurement of the second angle?
    7·2 answers
  • Rihanna can go from 0-60 miles per hour in 3.5 seconds. Calculate the acceleration.
    11·1 answer
  • . Consider a fully extended arm that is rotating about the shoulder such that with a shoulder-to-hand length of 30 cm. If the ar
    12·1 answer
  • How long does it take a 1.51 × 104 W steam engine to do 8.72 × 106 J of work? Round your answer to three significant figures
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!