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
RSB [31]
2 years ago
11

A ball is thrown at an angle of 40 degrees above the horizontal. The horizontal component of the baseball's initial velocity is

12.0 meters per second. What is the magnitude of the ball's initial velocity?
Physics
2 answers:
motikmotik2 years ago
8 0
<span> Let,
initial velocity = v m/sec,

Angle, x = 40 degrees,

horizontal-componant = v.cos(x) = 12 m/sec,
OR,
v = 12 / cos(40) = 12/0.766 = 15.67 meters/sec >================< ANSWER </span> Source(s): Fazaldin A <span> · 4 years ago </span>
Andru [333]2 years ago
7 0

Answer:

Magnitude of initial velocity = Vi = 15.7 m/s

Explanation:

Horizontal component of velocity = Vi × Cosθ = 12   ……….. (i)

Where,  

θ  = Angle at which ball is thrown above the horizontal = 40 degrees  

Put θ = 40 degrees in equation (i),

Vi × Cos(40)= 12

Vi = 12/ Cos(40)

Vi = 12/0.766

Vi = 15.66 m/s

Vi = 15.7 m/s

You might be interested in
For the circuit in the previous part, what happens to the maximum current if the frequency is doubled and the inductance is halv
tamaranim1 [39]

Answer:

Following are the responses to these question:

Explanation:

Since the max^{m} is the current of ckt which depend on the reactance which   inductor that also enables the ckt and inductor resistance (X_L) for capacities

\to X_{C}=\frac{1}{W L}

for

\to X_{L}=wL

When w \longrightarrow 2w

L\longrightarrow \frac{L}{2}

then

\to X_{L}=2 w \times \frac{L}{2}=wL

 therefore, X_{L} remains at the same so, the maximum current remains the in same ckt.

4 0
2 years ago
Janet wants to find the spring constant of a given spring, so she hangs the spring vertically and attaches a 0.50 kg mass to the
frez [133]
Given: Mass m = 0.50 Kg;     Force = Weight = mg   F = (0.50 Kg)(9.8 m/s²)

                                               F = 4.9 N      

Displacement  x = 3.0 cm   convert to meter   x = 0.03 m

Required: Spring constant  k = "

Formula:  F = kx

                k = F/x

                k = 4.9 N/0.03 m

                k = 163.33 N/m


                    

                                                                      
3 0
2 years ago
Can viruses, bacteria, and fungi be considered parasites?
Pani-rosa [81]
Yes, they live off of other organisms and harm the organisms.
4 0
3 years ago
Determine the value of the resistor r so that a current of 0.5a flows through the load.
iren2701 [21]
What is the value of the voltage? There must be one somewhere.

This might be too simple minded, but I'll give it a voltage of 10 Volts.

R = voltage / Current
R = 10 / 0.5
R = 20 volts. 

Perhaps you could post a diagram if this is a Kirchhoff Law Question.
8 0
2 years ago
What is the definition of light of one year ?​
Elodia [21]

Answer:

The definition of a light year is the distance a photon will travel in a year in a vaccume, like space.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is the correct definition of thermal energy?
    11·2 answers
  • A block measure 10 cm by 10 cm by 5 cm , what is it’s volume
    9·1 answer
  • Apply what you know about forces to hypothesize how balanced and unbalanced forces acting on a moving car would affect the motio
    9·1 answer
  • A 5.45-g combustible sample is burned in a calorimeter. the heat generated changes the temperature of 555 g of water from 20.5°c
    5·1 answer
  • A parallel-plate capacitor connected to a battery becomes fully charged. After the capacitor from the battery is disconnected, t
    9·1 answer
  • What collides and creates a movement of heat called conduction?
    13·1 answer
  • Are the statements of the Flat Earth Society an example of science or pseudoscience?
    13·2 answers
  • Please help. Explain why it is correct. I will give brainliest
    7·1 answer
  • I need to choose a theme for my physics assignment My experiment is finding g
    8·1 answer
  • Write two example in which chemical energy is converted into heat energy ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!