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
dimaraw [331]
2 years ago
13

A player is positioned 35 m[40 degrees W of S] of the net. He shoot the puck 25 m [E] to a teammate. What second displacement do

es the puck have to travel in order to make it to the net?

Physics
1 answer:
Lubov Fominskaja [6]2 years ago
4 0

Answer:

x=22.57 m

Explanation:

Given that

35 m in W of S

angle = 40 degrees

25 m in east

From the diagram

The angle

\theta=90-40=50^o

From the triangle OAB

cos40^o=\frac{35^2+25^2-x^2}{2\times 35\times 25}

1340.57=35^2+25^2-x^2

x=22.57 m

Therefore the answer of the above problem will be 22.57 m

You might be interested in
a stone is thrown horizonttaly from a cliff of a hill with an initial velocity of 30m/s it hits the ground at a horizontal dista
ELEN [110]

Answer:

a) Time = 2.67 s

b) Height = 35.0 m

Explanation:

a) The time of flight can be found using the following equation:

x_{f} = x_{0} + v_{0_{x}}t + \frac{1}{2}at^{2}   (1)

Where:

x_{f}: is the final position in the horizontal direction = 80 m

x_{0}: is the initial position in the horizontal direction = 0

v_{0_{x}}: is the initial velocity in the horizontal direction = 30 m/s

a: is the acceleration in the horizontal direction = 0 (the stone is only accelerated by gravity)

t: is the time =?  

By entering the above values into equation (1) and solving for "t", we can find the time of flight of the stone:  

t = \frac{x_{f}}{v_{0}} = \frac{80 m}{30 m/s} = 2.67 s

b) The height of the hill is given by:

y_{f} = y_{0} + v_{0_{y}}t - \frac{1}{2}gt^{2}

Where:

y_{f}: is the final position in the vertical direction = 0

y_{0}: is the initial position in the vertical direction =?

v_{0_{y}}: is the initial velocity in the vertical direction =0 (the stone is thrown horizontally)            

g: is the acceleration due to gravity = 9.81 m/s²

Hence, the height of the hill is:

y_{0} = \frac{1}{2}gt^{2} = \frac{1}{2}9.81 m/s^{2}*(2.67 s)^{2} = 35.0 m  

I hope it helps you!

5 0
3 years ago
Plants release water vapor into the atmosphere through the process called _____.
timofeeve [1]
The process is called transpiration  <span />
6 0
3 years ago
Read 2 more answers
I need help with...
Rom4ik [11]
The car will gain new momentum if it's velocity is doubled or tripled.
6 0
3 years ago
What does the potential energy diagram of a chemical reaction tell you
sattari [20]
By looking at the potential energies before and after the reaction, we can tell that the reaction is exothermic (final < initial) or endodermic (final > initial).

Also, the amount of activation energy gives an idea of the external energy required to initiate the reaction (for example, by heating the reactants).
Furthermore, by the same principle, we can also deduce the activation energy for the reverse reaction.

If a catalyst is available, the diagram will show a reduced activation energy, compared to a reaction without catalyst.  However, it will also show that the catalyst does not alter the initial and final energies of the reaction.
4 0
3 years ago
Read 2 more answers
Ivan walks 10 meters west to the water fountain, then runs 2 meters east to his class to avoid a lockout. His displacement would
otez555 [7]

Answer:

<u>-8</u>

Explanation:

if he starts at ten and takes 10 steps left he'll be at -10... then if he takes 2 steps to the right , he's at -8 on the number-line

7 0
3 years ago
Read 2 more answers
Other questions:
  • If R is the total resistance of three resistors, connected in parallel, with resistances R1, R2, R3, then 1 R = 1 R1 + 1 R2 + 1
    11·1 answer
  • Well into the twentieth century, many scientists believed the ocean floor was
    6·1 answer
  • What are two results of animal regeneration?
    12·2 answers
  • Is it possible for several scientists who have never met each other to contribute to the same scientific knowledge, theory, or l
    6·2 answers
  • When more than one wave is in the same location at the same time, then there is _____ between the waves?
    13·1 answer
  • Look at Concept Simulation 5.2 to review the concepts involved in this question. Two cars are identical, except for the type of
    11·1 answer
  • The three types of stress that act on Earth's rocks are compression, tension, and
    6·1 answer
  • Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject materia
    12·1 answer
  • The low-frequency speaker of a stereo set has a surface area of and produces 1W of acoustical power. What is the intensity at th
    14·1 answer
  • The speed limit on some interstate highways is roughly 90 km/h. (a) What is this in meters per second
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!