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
alexandr402 [8]
3 years ago
15

A home run is hit in such a way that the baseball just clears a wall 21m hgh located 130m from home plate the ball is hit at an

angle of 35 degrees to the horizontal find the inital sped of the ball the time it takes the ball to reach the wall and the velocity compontets and the speed if the ball when it reached the wall assume the that ball is hit at a height of 1m above the ground?
Physics
1 answer:
svlad2 [7]3 years ago
3 0

Answer:

see the attachment

Explanation:

take coordinate system correctly. use formulas of projectile motion

Download pdf
You might be interested in
The average lifetime of μ-mesons with a speed of 0.95c is measured to be 6 x 10^6 s. Find the average lifetime of μ-mesons in a
Mnenie [13.5K]

Answer:

19.2*10^6 s

Explanation:

The equation for time dilation is:

t = \frac{t'}{\sqrt{1-\frac{v^2}{c^2}}}

Then, if it is observed to have a life of 6*10^6 s, and it travels at 0.95 c:

t = \frac{6*10^6}{\sqrt{1-\frac{(0.95c)^2}{c^2}}} = 19.2*10^6 s

It has a lifetime of 19.2*10^6 s when observed from a frame of reference in which the particle is at rest.

7 0
4 years ago
A parcel has a mass of 500 g .calculate its weight (assume the gravitational field strength is 10 N/Kg
Effectus [21]

Answer:

5N

Explanation

convert grams to kg and multipy with 10 (.5 *10)=5N

5 0
3 years ago
What is one standard kilogramun si system<br><br><br><br><br>​
Phoenix [80]

Answer:

The kilogram (kg) is defined by taking the fixed numerical value of the Planck constant h to be 6.62607015 ×10−34 when expressed in the unit J s, which is equal to kg m2 s−1, where the meter and the second are defined in terms of c and ∆νCs.

3 0
3 years ago
Read 2 more answers
Bats have poor vision and use echo-location to find their way.The frequency produced by bats is 100kHz. If the speed of the soun
irga5000 [103]

The distance covered is 25.9 m.

<h3>How deep is the cave?</h3>

We know that the speed of sound refers to the speed with which an sound moves in an object.

Given that;

speed of sound = 345m/s

Time taken =  0.15s

We know that;

v = 2d/t

v = speed of sound

d = distance

t = time taken

vt = 2d

d = vt/2

d = 345m/s *  0.15s/2

d = 25.9 m

Learn more about speed of sound:brainly.com/question/15137350

#SPJ1

5 0
2 years ago
As an intern with an engineering firm, you are asked to measure the moment of inertia of a large wheel, for rotation about an ax
AysviL [449]

Answer:

I=2.766\ kg.m^2

Explanation:

We have:

diameter of the wheel, d=0.88\ m

weight of the wheel, w_w=280\ N

mass of hanging object to the wheel, m_o=6.32\ kg

speed of the hanging mass after the descend, v_o=4\ m.s^{-1}

height of descend, h=2.5\ m

(a)

moment of inertia of wheel about its central axis:

I=\frac{1}{2} m.r^2

I=\frac{1}{2} \frac{w_w}{g}.r^2

I=\frac{1}{2} \times \frac{280}{9.8}\times 0.44^2

I=2.766\ kg.m^2

3 0
4 years ago
Other questions:
  • A car moving with a velocity of 20 meters/second has 1.8**10^5 joules of kinetic energy what is the mass of the car?
    10·1 answer
  • 6. A 1,780kg car moving at 14m/s takes a turn around a circle with a radius of 50.0m.
    5·1 answer
  • Two forces Upper FSubscript Upper A Baseline Overscript right-arrow EndScripts and Upper FSubscript Upper B Baseline Overscript
    15·1 answer
  • Newton’s second law of motion addresses the relationship between what two variables that influence the force on a body?
    10·2 answers
  • The acceleration due to gravity on Jupiter is 2.5 times what it is here on earth. An object weighing 347.9 N here on earth will
    8·1 answer
  • Light would most likely be transmitted through A. A mirror B. A stone C. A leaf D. A window
    13·2 answers
  • A truck traveling with an initial velocity of 22m/s comes to a stop in 17.32 secs. What is the acceleration of the truck?
    5·2 answers
  • If Jim is pushing a chair with 12N of force to the right while John is pushing with a force of 24N to the Left, what is the net
    8·1 answer
  • Two objects, A and B, are in contact with one another. Initially, the temperature of A is 50 °C and the temperature of B is 100
    7·1 answer
  • Mark pushes his broken car 140 m down the block to his friend's house. He has to exert a 160 N horizontal force to push the car
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!