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
DENIUS [597]
3 years ago
14

A rocket-launching vehicle is moving forward at a constant velocity of 5 m/s. a cannon on the vehicle shoots a shell straight up

with a velocity of 20 m/s. the shell moves without friction, (no air resistance). how high does the shell go, in m?
Physics
1 answer:
Readme [11.4K]3 years ago
5 0
For any object thrown upwards where only the force of gravity is acting upon it, uses the following formula for the maximum height attained.

H= v²/2g, where g = 9.81 m/s²

There are two information of velocities are given. However, we use the 20 m/s information because this is the launch velocity. Hence, the solution is as follows:

H = (20 m/s)²/2(9.81 m/s²)
<em>H = 20.4 m</em>
You might be interested in
What is net force explain with an example
xeze [42]

Answer:

Net force is the vector sum of forces acting on a particle or body. ... Its associated torque, the net force, becomes the resultant force and has the same effect on the rotational motion of the object as all actual forces taken together. It is possible for a system of forces to define a torque-free resultant force.

Explanation:

In a tug of war, a fat man pulls with a force of 100 N on one side, and a man pulls with 90 N on the other side. Compute the net force.

Solution:

Given:

Force F1= 100 N,

Force F2 = -90 N.

The net force formula is given by,

F_NET = F_1 + F_2F  

N

​  

ET=F  

1

​  

+F  

2

​  

 

F_NET = (100 ) +(– 90)F  

N

​  

ET=(100)+(–90)

F_NET= 10 NF  

N

​  

ET=10N

Therefore, the net force is 10 N.

4 0
3 years ago
What does the measurement unit N stand for?
bonufazy [111]

Explanation:

The newton (symbol: N) is the International System of Units (SI) derived unit of force.

3 0
3 years ago
Read 2 more answers
A thunderclap sends a sound wave through the air and the ocean below. The
marysya [2.9K]

Answer:

C. 14.93 m

Explanation:

The given frequency of the wave, f = 100 Hz

The given equation for the wave speed, <em>v</em>, is presented as follows;

v = f × λ

The speed of sound in water, v = 1,493 m/s

Therefore, we get;

The wavelength, λ = v/f

∴ λ = 1,493 m/s/(100 Hz) = 14.93 m

The wavelength, λ = 14.93 m.

8 0
3 years ago
A coin and feather are dropped in a moon. what will fall earlier on ground.give reasons.if they are dropped in the earth,which o
Sergeeva-Olga [200]

Answer:

  • on the moon, they will fall at the time
  • on earth, the coin will fall faster to the ground

Explanation:

A coin and feather dropped in a moon experience the same acceleration due to gravity as small as 1.625 m/s², and because of the absence of air resistance both will fall at the same rate to the ground.

If the same coin and feather are dropped in the earth, they will experience the same acceleration due to gravity of 9.81 m/s² and because of the presence of air resistance, the heavier object (coin) will be pulled faster to the ground by gravity than the lighter object (feather).

4 0
3 years ago
What was the main aim behind Wegener's continental drift theory?
Aleks [24]
D.all of the above is the answer for this question
8 0
3 years ago
Other questions:
  • Which best compares the gravitational force and the strong force ?
    14·2 answers
  • The average speed of a car being driven in London is 11 miles per hour. If you have to drive 15 miles from your home to work in
    7·1 answer
  • What is the resistance in a circuit that carries a 0.75 A current when powered by a 1.5 V battery? A.) 0.50 Ω B.) 1.1 Ω C.) 2.0
    6·2 answers
  • What does energy give an object the ability to do
    6·1 answer
  • Which part of the electromagnetic spectrum generally gives us our best views of stars forming in dusty clouds?
    9·1 answer
  • How do you best determine whether j/m2 and m*s2/N are equivalent units?
    10·2 answers
  • Perspex has a greater refractive index than ice. Explain what happens to the speed and direction of a ray of light at it travels
    14·1 answer
  • Which of the following statement is false
    15·2 answers
  • What is the mechanical advantage of a wedge that is 2 inches at its widest part and has a sloped side with a length of 10 inches
    12·1 answer
  • 3.113 A heat pump is under consideration for heating a research station located on Antarctica ice shelf. The interior of the sta
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!