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
Ainat [17]
3 years ago
11

A football player kicks a football, from ground level, with an initial velocity of 27.0 m/s at an angle 30° above the horizontal

.
a. What is the maximum height the ball attained?
b. How long did it take the ball to return to the launching height?
C. How far away did it land?​
Physics
1 answer:
Bond [772]3 years ago
6 0

Answer:

See answers below

Explanation:

a.

(vf)² = (vi)² + 2gy

0 = (27sin30°)² + 2(-9.8)y

y = 36.3 m

b.

vf = vi + gt

0 = (27sin30°) + (-9.8)t

t = 2.72 s

2.72 x 2 = 5.44 s

c.

x = (vi)t + (1/2)at²

x = (27cos30°)(5.44) + 0

x = 22.66 m

You might be interested in
A 25.0 g marble sliding to the right at 20.0 cm/s overtakes and collides elastically with a 10.0 g marble moving in the same dir
vovikov84 [41]
In collision that are categorized as elastic, the total kinetic energy of the system is preserved such that,

   KE1  = KE2

The kinetic energy of the system before the collision is solved below.

  KE1 = (0.5)(25)(20)² + (0.5)(10g)(15)²
  KE1 = 6125 g cm²/s²

This value should also be equal to KE2, which can be calculated using the conditions after the collision.

KE2 = 6125 g cm²/s² = (0.5)(10)(22.1)² + (0.5)(25)(x²)

The value of x from the equation is 17.16 cm/s.

Hence, the answer is 17.16 cm/s. 
6 0
3 years ago
If a point charge is located at the center of a cylinder and the electric flux leaving one end of the cylinder is 20% of the tot
zheka24 [161]

The portion of the flux leaves the curved surface of the cylinder is 60%.

<h3 /><h3>What are electrons?</h3>

The electrons are the spinning objects around the nucleus of the atom of the element in an orbit.

If a point charge is located at the center of a cylinder and the electric flux leaving one end of the cylinder is 20% of the total flux leaving the cylinder.

If 20% of the flux leave from one end, then another 20% will leave from another end.

So, the net flux through curved surface is

100 -20 -20 = 60%

Thus, the total flux  leaves the curved surface of the cylinder is 60%

Learn more about electrons.

brainly.com/question/1255220

#SPJ1

5 0
2 years ago
Una secadora de cabello tiene una resistencia de 10Ω al circular una corriente de 6 Amperes, si está conectado a una diferencia
Gala2k [10]

Answer:

Una secadora de cabello tiene una resistencia de 10Ω al circular una corriente de 6 Amperes, si está conectado a una diferencia de potencial de 120 V, durante 18 minutos ¿Qué cantidad de calor produce?, expresado en calorías

5 0
3 years ago
I did questions 2 and 3 but I don't know if they are right. Someone help!
Tems11 [23]

You got it right my friend

8 0
3 years ago
Read 2 more answers
18. Which would be the most reliable source of information to use for a history report? (2 points)
Paladinen [302]

Answer:

encyclopedia most reliable I think

3 0
3 years ago
Read 2 more answers
Other questions:
  • I WILL GIVE BRAINLIEST TO THE BEST ANSWER
    14·2 answers
  • A heat pump has a coefficient of performance that is 60% of the Carnot heat pump coefficient of performance. The heat pump is us
    9·1 answer
  • The force of gravity is also known as
    13·1 answer
  • 1) What happens to the energy carried in the transverse wave as the<br> amplitude increases? *
    7·1 answer
  • A small, single engine airplane is about to take off. The airplane becomes airborne, when its speed reaches 193.0 km/h. The cond
    6·1 answer
  • What does the temperature of the gas between galaxies in galaxy clusters tell us about the mass of the cluster
    6·1 answer
  • What happens during the fall in September?
    8·2 answers
  • This diagram shows the forces acting on a car. The center dot represents the car, a the arrows represent the forces acting on th
    10·1 answer
  • A book that weighs 5 newtons is sitting on a table 1.5 meters above the floor. How much gravitational potential energy does the
    13·1 answer
  • Which of the following surface will absorb radiant heat energy best
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!