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
WITCHER [35]
3 years ago
14

You throw a ball upwards at 22.0 m/s how high will it go?

Physics
1 answer:
Alex3 years ago
3 0

Answer:

Time to reach maximum height can be obtained from v=u+at

0=20+(−10)t

t=2s

s=ut+0.5at

2

=20(2)+0.5(−10)(2)

2

=20m

Thus, total distance for maximum height is 45 m

s=ut+0.5at

2

45=0+0.5(10)(t ′ )

2

t

′

=3s

Total time= 3+2= 5s

Explanation:

TAKE 22.0 IN PLACE OF 20 U WILL GET YR ANSWER

HOPE IT HELPS

You might be interested in
What are the four main spheres of the earths ststem​
vladimir2022 [97]

Answer:

"lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air)

Hope this helps

-Amelia

5 0
4 years ago
Read 2 more answers
A brick moves across a rough surface at constant velocity. Which of the following are forces that should be included in a free b
12345 [234]
But friction is what would make it slow down so...
3 0
4 years ago
A boxer punches a sheet of paper in midair and brings it from rest up to a speed of 30 m/s in 0.060 s .
zimovet [89]

Answer:

Force exerted, F = 1.5 N

Explanation:

It is given that, a boxer punches a sheet of paper in midair and brings it from rest up to a speed of 30 m/s in 0.060 s.

i.e. u = 0

v = 30 m/s

Time taken, t = 0.06 s

Mass of the paper, m = 0.003 kg

We need to find the force the boxer exert on it. The force can be calculated using second law of motion as :

F=m\times a

F=m\times (\dfrac{v-u}{t})

F=0.003\times (\dfrac{30}{0.06})

F = 1.5 N

So, the force the boxer exert on the paper is 1.5 N. Hence, this is the required solution.

6 0
3 years ago
An inventor develops a stationary cycling device by which an individual, while pedaling, can convert all of the energy expended
mr Goodwill [35]

Answer:

Q=94185\ J

Explanation:

Given:

  • mass of water, m=0.3\ kg
  • initial temperature of water, T_i=20^{\circ}C
  • final temperature of water, T_f=95^{\circ}C
  • specific heat of water, c=4186\ J.kg^{-1}.K^{-1}

<u>Now the amount of heat energy required:</u>

Q=m.c.\Delta T

Q=0.3\times 4186\times (95-20)

Q=94185\ J

Since all of the mechanical energy is being converted into heat, therefore the same amount of mechanical energy is required.

4 0
3 years ago
Through x rays is harmful for human health it is used in medical field why?
ipn [44]
It is strong enough to penetrate through flesh but not bone so we can see if there are fractures or breaks in our skeleton
6 0
3 years ago
Other questions:
  • A coach wants her team to have fun, win some games, and be a productive unit. What is the most important personality trait the c
    8·2 answers
  • According to the universal law of gravitation _____.
    13·2 answers
  • A 50.0 kg child stands at the rim of a merry-go-round of radius 1.95 m, rotating with an angular speed of 2.80 rad/s.
    12·1 answer
  • The density differences in the ocean water are due to different salt concentrations and differences in temperature. These differ
    13·1 answer
  • Why earth's atmosphere so important? Why earth's atmosphere so important? Follow 6 answers 6 Report Abuse Are you sure you want
    10·1 answer
  • A runner has a speed of 5m/s and a mass of 130 kg what is his kinetic energy?
    13·2 answers
  • How does a compass needle respond when a compass is placed within a magnetic field? It aligns in a direction parallel to the fie
    11·2 answers
  • For the circuit, suppose C=10µF, R1=1000Ω, R2=3000Ω, R3=4000Ω and ls=1mA. The switch closes at t=0s.1) What is the value of Vc (
    11·1 answer
  • A mass of 0.8 kg is fixed at a vertical spring with an unknown spring constant. When spring is released from rest, it extends to
    9·1 answer
  • 3) Скорость автомобиля увеличилась от 10 м/с до 20 м/с. Во сколько раз увеличилась его
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!