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
nika2105 [10]
2 years ago
14

A rock thrown with a velocity of 23.7 m/s horizontally off the top of a bridge falls 120 m to the water below. How far away does

the rock land?
Physics
1 answer:
Kipish [7]2 years ago
8 0

Answer:

d=117.2845834m

Explanation:

Let's start out with the vertical components

vi=0, vf=?, a=9.8, x=120, t=?

Let's find how long the rock was falling.

x=vi*t+.5*a*t^2

120=0+.5*9.8*t^2

120=4.9*t^2

t=4.9487166s

Since we know the horizontal velocity is constant, we use the formula v=d/t

23.7=d/4.9487166

d=117.2845834m

You might be interested in
A 1 cm2 silicon solar cell has a saturation current of 10A and is illuminated with sunlight yielding a short-circuit photocurren
Yuki888 [10]

Answer:

The answer is "13% and 83%"

Explanation:

The highest power is generated for:

\to \frac{dP}{dV_a}=0= I_s(e^{\frac{V_m}{V_t}} -1)-I_{Ph} +\frac{V_m}{V_t} I_s e^{\frac{V_m}{V_t}}

 Where voltage, V_m, was its calculated maximum power wattage.  This same following transcend national stable coins the power output:

\to V_m=V_t \ In \frac{1+\frac{I_{ph}}{I_s}}{1+\frac{V_{m}}{V_t}}

The accompanying consecutive values of V_m are done utilizing iteration and an initial value of 0.5 V:

\to V_m = 0.5,\  0.542,\  0.540 \ V

Efficacy is equivalent to:

\eta = |\frac{V_{m} I_{m}}{p_{in}}| =\frac{0.54 \times 0.024}{0.1}=1.3\%

Currently, I_m was calculated with the formula of voltage V_m (4.6.1) as well as the sun is presumed to produce  100 \frac{mW}{cm^2} of power.

The fulfillment factor is equal to:

fill factor= \frac{V_{m} I_{m}}{V_{oc}I_{sc}}= \frac{0.54 \times 0.024}{0.62 \times 0.025}=83\%

where open circuit tension of equations (4.6.1) and I = 0. is calculated. The current is equal to the total current of the photo.

5 0
3 years ago
An object is in circular motion. how will the object behave if the centripetal force is removed?
Inessa [10]

The correct answer is

B. it would move in a line tangent to the circular path

In fact, the centripetal force is the only force that keeps the object in a circular trajectory, pulling the object towards the centre of the circle. When this force is removed, there are no other forces acting on the object, therefore for the law of inertia, the object will continue to move at constant velocity, therefore in the same direction (tangent to the circular path) at constant speed.

4 0
3 years ago
Read 2 more answers
How does microwave technology cook food?
Y_Kistochka [10]

Answer:

By heating all the water molecules which changes the thermal energy of the food

Explanation:

3 0
2 years ago
A set of pulleys is used to lift a piano weighing 1,000 newtons. The piano is lifted 3 meters in 120 seconds. How much power was
Sergio039 [100]

Answer:

25 watts

Explanation:

Power=work/time

work=force x distance

1000 × 3

=3000 Joules

power= 3000/120

=25 watts

4 0
4 years ago
If a freely falling object were equipped with a speedometer on a planet where the acceleration due to gravity is 20 m/s², then i
babymother [125]

Answer:

20 m/s

Explanation:

The acceleration of an object determines the increase in velocity per second.

In this case the acceleration is 20m/s^2.

a=\frac{v}{t}=\frac{\frac{20m}{s}}{s}

That is, the increase is 20m/s each second.

I hope this is useful for you

Regards

7 0
4 years ago
Read 2 more answers
Other questions:
  • Bob has been Springfield's top meteorologist for ten years. He received data from satellite imaging and computer models that a h
    14·2 answers
  • A motorcycle weighs 2,009 newtons. The mass of the motorcycle is kilograms. Use g = 9.8 N/kg for gravity.
    8·2 answers
  • An electret is similar to a magnet, but rather than being permanently magnetized, it has a permanent electric dipole moment. Sup
    10·2 answers
  • If two objects collide and one is initially at rest, is it possible for both to be at rest after the collision? Is it possible f
    7·1 answer
  • A) Find the gravitational field strength of an asteroid with the mass of 3.2 * 10^3 kg and an average radius of 30 km when at a
    10·1 answer
  • Calculate the force on an object that has a mass of 12 kg and an acceleration of 4 m/s^2
    10·1 answer
  • What is life like on planet mars?
    13·1 answer
  • Where does the negative charge come from?
    12·2 answers
  • Sounds waves are an example of which type of wave? Longitudinal Transverse O Electromagnetic​
    6·1 answer
  • Pls help me l will make it brainlest ​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!