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
Ugo [173]
3 years ago
12

Hurry need an answer

Physics
1 answer:
notsponge [240]3 years ago
6 0

Answer:

i think b

Explanation:

You might be interested in
Paul and ivan are riding a tandem bike together
QveST [7]

Answer:

it's D

Explanation:

3 0
3 years ago
Read 2 more answers
You launch a water balloon from the ground with a speed of 8.3 m/s at an angle of 27°. a. What is the horizontal component of th
solmaris [256]

a) The horizontal component of the velocity is 7.4 m/s

b) The vertical component of the velocity is 3.8 m/s

c) The balloon reaches the highest point after 0.39 s

d) The maximum height is 0.74 m

e) The total time of flight is 0.78 s

f) The range of the balloon is 5.77 m

Explanation:

a)

The motion of the balloon is the motion of a projectile, which consists of two independent motions:

- A uniform motion (constant velocity) along the horizontal direction

- An accelerated motion with constant acceleration (acceleration of gravity) in the vertical direction

The horizontal component of the velocity (which is constant) is given by

v_x = u cos \theta

where

u = 8.3 m/s is the initial velocity of the balloon

\theta=27^{\circ} is the angle of projection

Substituting,

v_x = (8.3)(cos 27^{\circ})=7.4 m/s

b)

The vertical component of the initial velocity of a projectile is given by

u_y = u sin \theta

where

u is the initial velocity

\theta is the angle of projection

Here we have

u = 8.3 m/s

\theta=27^{\circ}

Substituting,

u_y = (8.3)(sin 27^{\circ})=3.8 m/s

c)

The vertical component of the velocity of the balloon follows the suvat equation

v_y = u_y - gt

where

v_y is the vertical velocity at time t

u_y = 3.8 m/s is the initial vertical velocity

g=9.8 m/s^2 is the acceleration of gravity

The balloon reaches the maximum height when the vertical velocity becomes zero:

v_y = 0

So we get:

0=u_y -gt\\t=\frac{u_y}{g}=\frac{3.8}{9.8}=0.39 s

d)

The maximum height of the balloon can be calculated using the suvat equation:

s=u_y t - \frac{1}{2}gt^2

where

u_y = 3.8 m/s is the initial vertical velocity

g=9.8 m/s^2 is the acceleration of gravity

t = 0.39 s is the time at which the highest point is reached

Substituting,

s=(3.8)(0.39)-\frac{1}{2}(9.8)(0.39)^2=0.74 m

e)

The total time of flight of a projectile is twice the time needed to reach the maximum height, and it is given by

t=\frac{2u_y}{g}

where

u_y is the initial vertical velocity

g is the acceleration of gravity

Here we have

u_y = 3.8 m/s

g=9.8 m/s^2

Substituting,

t=\frac{2(3.8)}{9.8}=0.78 s

f)

The range of a projectile is the horizontal distance covered by the projectile, so it can be found by multiplying its horizontal velocity (which is constant) by the time of flight:

d=v_x t

where

v_x is the horizontal velocity

t is the time of flight

Here we have

v_x = 7.4 m/s

t = 0.78 s

Substituting,

d=(7.4)(0.78)=5.77 m

Learn more about projectile motion:

brainly.com/question/8751410

#LearnwithBrainly

7 0
3 years ago
The acceleration due to gravity on Earth is 9.81 m/s² [down]. A hockey puck was launched from the ice with a velocity of 26.9 m/
charle [14.2K]

Answer:

A hockey puck having a mass of 0.30 kg slides on the frictionless, horizontal surface of an ... magnitude of 5.0 N, and the force F2 has a magnitude of 8.0 N. Determine both ... A large man and a small boy stand facing each other on frictionless ice. They ... A hockey puck on a frozen pond is given an initial speed of 20.0 m/s.

4 0
2 years ago
For what angle of incidence at the first mirror will this ray strike the midpoint of the second mirror (which is s = 28.8 cm lon
Naily [24]

The angle of incidence at the first mirror will this ray strike the midpoint of the second mirror is 34.6°

Two plane mirrors intersect at right angles. A laser beam strikes the first of them at a point d = 10.0cm from their point of intersection.

To strike the midpoint of the second mirror, the ray of light will have to travel half of the distance vertically

i.e. 29/2 = 14.5

We can solve this through trigonometry.

Let the angle between the ray and the vertical plane mirror is known as α

tan α = 10/14.5

α =  = 34.6°

The angle of incidence is the angle between the ray and the normal line of the mirror.

Let the angle of incidence of the first mirror be β

β = α = 34.6

Know More about the angle of incidence at:

brainly.com/question/18772331

#SPJ4

4 0
11 months ago
What is the atomic number of a sodium atom that has 11 protons and 12 neutrons
Ede4ka [16]
The Atomic number for sodium is 11 cause it contains 11 protons. I hope this helps..
8 0
3 years ago
Other questions:
  • A heavy flywheel rotating on its central axis is slowing down because of friction in its bearings. At the end of the first minut
    15·1 answer
  • SERE
    11·1 answer
  • If the coefficient of kinetic friction between tires and dry pavement is 0.98, what is the shortest distance in which you can st
    11·1 answer
  • An element has three stable isotopes. One has a mass number of 63 and an abundance of 50%. The second has a mass number of 65 an
    15·1 answer
  • Which of the following are comprised of proteins?
    9·1 answer
  • A meteorologist describes a tropical storm as traveling northwest at 50 mi/h. which attribute of the storm’s motion has the mete
    8·1 answer
  • In a two-slit experiment, the slit separation is 3.34 ⋅ 10 − 5 m. The interference pattern is created on a screen that is 3.30 m
    7·1 answer
  • Which motion maps show an object in uniform circular motion? Check all that apply. V W X Y
    9·2 answers
  • A cannonball is fired with an initial velocity of 51m/s at an angle of 35° above the ground.
    9·1 answer
  • A 3000-kg spaceship is moving away from a space station at a constant speed of 3 m/s. The astronaut in the spaceship decides to
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!