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
Alenkinab [10]
3 years ago
14

A ball is thrown straight up with an initial speed of 36 m/s . Part A How much time does it take for the ball to reach the top o

f its trajectory?
Physics
1 answer:
nevsk [136]3 years ago
8 0

Answer:3.67 s

Explanation:

Given

Ball is thrown with an initial velocity of u=36\ m/s

As the ball moves upward it experience a declaration due to gravity which will slow down the ball

using

v=u+at

where v=final velocity

u=initial velocity

a=acceleration

t=time

Here v=0

0=36-9.8\times t

t=\frac{36}{9.8}

t=3.67\ s

You might be interested in
Describe the relationship between dna, chromosomes, and genes
denis23 [38]

Condensation of DNA forms the chromosomes and the DNA contains the genes.

<h3><u>Explanation:</u></h3>

DNA is the complex polymer of different nucleotides which stores the genetic information inside each and every cell of an animal. A DNA molecule is very long, which is stored inside the nucleus of an eukaryotic cell. In case of prokaryotic cells, the DNA molecule remains present inside the cytoplasm of a cell.

The Chromosomes are the condensed DNA which are seen inside the cells which are going to divide in near future. In these cells for the sake of efficient chromosome separation, the DNA condenses into chromosomes with the help of different histone and non histone proteins.

Genes are particular parts of DNA which comprise of a group of nucleotides and together, they translate into a protein chain with specific function in body.

3 0
3 years ago
Read 2 more answers
Plane is flying east at 33m/s an airplane is also being carried due north at 12 m/s by the wind what is the planes resultant vel
amid [387]

Answer: 2.75

Explanation: To find velocity you divide distance and time. V = d/t

33/12 = 2.75

8 0
4 years ago
A ray of laser light strikes a glass surface at an angle a=25.0° tot he normal and it is refracted to an angle b=18.5° to the no
USPshnik [31]

Answer:

1.33

Explanation:

According to snell's law,

n = sin(a)/sin(b)

Given

a = 25.0°

b = 18.5°

Substitute

n = sin25/sin18.5

n = 0.4226/0.3173

n = 1.33

Hence the index of refraction nb for this type of glass is 1.33

3 0
3 years ago
What is the mass of an object that has a weight of 80.0 N?
Ira Lisetskai [31]

Explanation:

SUPONIENDO QUE LA ACELERACIÓN DE LA GRAVEDAD ES 9.80 m/s^{2}

USANDO LA SEGUNDA LEY DE NEWTON:

<em>m</em> = 80.0 N/9.80 m/s^{2} = 8.16 kg

4 0
3 years ago
Read 2 more answers
On a cold day you can warm your hands by rubbing them together. (a) Assume that the coefficient of friction between your hands i
melomori [17]

To solve this problem it is necessary to apply the equations related to the Force of Friction and Energy.

By definition the friction force is defined as

F= \mu * N

Where,

\mu = Frictional Constant

N = Normal Force -> mg

At the same time we have the definition of the Energy, which can be

E = F*v

Where,

Force

v = Velocity.

Then replacing with our values we have that,

F = \mu N

F = 0.5 *34

F = 17

The energy then would be,

E = f v

E = 17 * 0.30 = 5.1 W

Therefore the rate at which heat is generated is 5.1W

6 0
3 years ago
Other questions:
  • Which of the following is responsible for the flow of electrons in a circuit?
    12·2 answers
  • a scientist wants to analyze signals from outer space. Her lab has sensors to dect sound waves, radio waves, and seismic waves.
    7·1 answer
  • A newly-discovered planet ("Kardashia") has a mass exactly 4.0 times that of Earth. A particle on the surface of Kardashia has t
    13·1 answer
  • A 2m long rope is stretched between two supports with a tension that makes the speed of transverse waves 50m/s. What is the wave
    11·1 answer
  • The rotational period of the moon is Blank Space __________. Question 2 options
    10·1 answer
  • A type of dripstone formation where the deposits hang from the ceiling of the cave is called a ________________________________.
    15·1 answer
  • Unscramble the bolded letters to guess the 6 letter word code. Did you get the poses or exercises correct? MOUNTAIN POSE TRIANGL
    11·1 answer
  • A ball falling from a building has a kinetic energy of 2000 J and potential energy of 2376 J. What is the mechanical energy of t
    11·1 answer
  • Problem 23.5 The electric field strength 1.5 cm from an electric dipole, on the axis of the dipole, is 1.5×105 N/C.
    9·1 answer
  • Would young rocks be found near a volcano?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!