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
Law Incorporation [45]
3 years ago
13

A rocket is fired at a 45° angle, what is the direction of the horizontal velocity vector at the peak height?

Physics
1 answer:
Bess [88]3 years ago
7 0

Answer:

B: Horizontally to the left

Explanation:

Horizontal velocity is always constant throughout the entire trajectory of the rocket and acts in the horizontal direction in which the rocket was launched. This is because gravity only acts in the downwards vertical direction.

So in order words at peak height, horizontal velocity is in the horizontal direction in which the rocket was launched.

So if it was to the left, then direction is left but if right, then direction is right.

Looking at the options, the most appropriate will be:

Horizontally to the left

You might be interested in
How much work is done on 10.0 c of charge to move it through a potential diffrence of 9.0 v in 10.0s
GenaCL600 [577]
We need more evidence to be provided
4 0
3 years ago
3. An astronaut on a space-walk swings a 0.5 kg metal tool in a circular path at the end of a cable 3.6 m long. The astronaut th
Semenov [28]

Answer:

Explanation:

2 km a hour

6 0
3 years ago
A magnet contains a ____ numbers of magnetic domains
mylen [45]
A magnet contains billions of aligned atoms known as magnetic domains
6 0
3 years ago
Read 2 more answers
A machine
In-s [12.5K]

Answer:

Power_input = 85.71 [W]

Explanation:

To be able to solve this problem we must first find the work done. Work is defined as the product of force by distance.

W = F*d

where:

W = work [J] (units of Joules)

F = force [N] (units of Newton)

d = distance [m]

We need to bear in mind that the force can be calculated by multiplying the mass by the gravity acceleration.

Now replacing:

W = (80*10)*3\\W = 2400 [J]

Power is defined as the work done over a certain time. In this way by means of the following formula, we can calculate the required power.

P=\frac{W}{t}

where:

P = power [W] (units of watts)

W = work [J]

t = time = 40 [s]

P = 2400/40\\P = 60 [W]

The calculated power is the required power. Now as we have the efficiency of the machine, we can calculate the power that is introduced, to be able to do that work.

Effic=0.7\\Effic=P_{required}/P_{introduced}\\P_{introduced}=60/0.7\\P_{introduced}=85.71[W]

3 0
3 years ago
Consider a venturi with a small hole drilled in the side of the throat. This hole is connected via a tube to a closed reservoir.
Marina CMI [18]

Answer:

(P_1-P_2)=1913.31 N/m^2

Explanation:

given:

\frac{A_t}{A_1}=0.85

V_1=90 m/s

γ∞=1.23 kg/m^3

solution:

since outside pressure is atm pressure vaccum can be defined by (P_1-P_2)

V_1=√2(P_1-P_2)/γ∞[\frac{A_t}{A_1}^2-1]

(P_1-P_2)=1913.31 N/m^2

6 0
2 years ago
Other questions:
  • How many meters do you cover in a 10 km (10-K) race? 
    7·1 answer
  • Which season is occurring in earths northern hemisphere when earths Southern Hemisphere is tilted toward the sun
    9·2 answers
  • two charges having the same charge magnitude experiencing an attracting force of 3.60N when the charges are 30cm apart.what is t
    7·1 answer
  • On a spring scale that measures force, a reading shows the force of an object to be about half way between 0 N and 1 N. Which of
    7·1 answer
  • What would happen if there were no friction between the girl and the slope?
    8·1 answer
  • Orbiting satellites use geothermal energy panels. <br><br> True <br> False
    8·1 answer
  • What are three effect of force​
    7·1 answer
  • A block of mass 2 kg is placed on the floor. The coefficient of static friction is 0.4. A horizontal force of 2.5 N is applied o
    15·1 answer
  • SOMEONE PLEASE ANSWER IM DESPRATE AND NOONES ANSWERING MY QUESTIONS, ILL GIVE U A PICTURE OF MY CAT TO BRIGHTEN YOUR DAY AND BRA
    15·1 answer
  • a water balloon is thrown a target at 18 m/s. if the water balloon has a mass of 0.4 kg, what is the momentum?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!