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
andrew11 [14]
3 years ago
7

A ball is thrown horizontally from the top of

Physics
2 answers:
Serhud [2]3 years ago
5 0

Answer:

52.38 m/s

Explanation:

Masja [62]3 years ago
5 0

Answer:

54.23 m/s

Explanation:

-- time to fall from 140m = 5.35 s

-- vertical speed after 5.35 s =

Speed = (5.35) x (9.8) = 52.38 m/s

-- horizontal speed = (75m/5.35s)

Speed = 14.03 m/s

Resultant speed due to vertical & horizontal speed components:

Speed = sqrt(52.38^2 + 14.03^2)

Speed = 54.23 m/s

You might be interested in
How do you verify scientific hypothesis?
sergeinik [125]
They verify scientific hypothesis by doing experiments do prove what their theory was.
3 0
3 years ago
The brightest, hottest, and most massive stars are the brilliant blue stars designated as spectral class O. If a class O star wi
aksik [14]

Answer:

2.77 * 10^5 m/s

Explanation:

Let us recall that kinetic energy is given by 1/2 mv^2

Where;

m = mass of the body

v = velocity of the body

In this case,

m = 3.38 * 10^31 kg

KE= 1.30 * 10^42 J

KE = 1/2 mv^2

v = √2KE/m

v = √2 * 1.30 * 10^42/3.38 * 10^31

v = √7.69 * 10^10

v = 2.77 * 10^5 m/s

4 0
3 years ago
Which of the following epidermal cells are the sensory receptors for touch?
never [62]
Merkel cells are the sensory receptors for touch. 
7 0
3 years ago
What is the hidden gene called
vagabundo [1.1K]
The hidden gene is called recessive
3 0
3 years ago
Read 2 more answers
The current in a stream runs at 5 miles per hour. if a boat can go 15 miles per hour on still water, how fast can the boat go do
arsen [322]
Down stream it would be going 20 mph and up stream 10 mph
3 0
3 years ago
Other questions:
  • Please help me with this homework
    10·2 answers
  • What are fossil fuels made of?
    13·1 answer
  • KFC has engineered chickens that do not have beaks and double breast
    8·1 answer
  • A 4.0kg block is suspended from a spring with force constant
    12·1 answer
  • A novelty golf ball of mass m is launched with an initial velocity v0 = (25i + 13j) m/s and then follows a parabolic trajectory.
    8·1 answer
  • A 85.4 kg ice skater is moving at 5.97 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole.
    12·1 answer
  • 1a. for the free body diagram below, are the forces balanced or unbalanced?​
    6·1 answer
  • The diagram shows the Earth rotating on it's axis. The two star symbols show different locations on the surface... What would th
    8·2 answers
  • The square plates of a 3000-pF parallel-plate capacitor measure 40 mm by 40 mm and are separated by a dielectric that is 0.29 mm
    8·1 answer
  • Which of the following sets of quantum numbers is possible?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!