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
Elanso [62]
3 years ago
13

A projectile is launched with an initial velocity of 25m/s at 35 degrees above the horizontal. assuming that the projectile retu

rns to the same height, what is the final velocity of this projectile
Physics
1 answer:
Dovator [93]3 years ago
3 0
Speed is the same as the initial: 25m/s.

*if* you need vectors though:

final velocity = (25*cos(35), -25*sin(35) ) m/s


You might be interested in
Is vibrating considered work
allsm [11]

Answer: no it shouldn't be

Explanation:

8 0
3 years ago
An overnight rainstorm has caused a major roadblock. Three massive rocks of mass m1=584 kg, m2=838 kg, and m3=322 kg have blocke
Elena-2011 [213]

Answer:

Force must be applied to m₁ to move the group of rocks from the road at 0.250 m/s² = 436 N

Explanation:

Total force required = Mass x Acceleration,

F = ma

Here we need to consider the system as combine, total mass need to be considered.

Total mass, a = m₁+m₂+m₃ = 584 + 838 + 322 = 1744 kg

We need to accelerate the group of rocks from the road at 0.250 m/s²

That is acceleration, a = 0.250 m/s²

Force required, F = ma = 1744 x 0.25 = 436 N

Force must be applied to m₁ to move the group of rocks from the road at 0.250 m/s² = 436 N

8 0
3 years ago
suppose a ball is thrown vertically upward. Eight seconds later it returns to its point of release. What is the initial velocity
valentinak56 [21]
The ball took half of the total time ... 4 seconds ... to reach its highest
point, where it began to fall back down to the point of release.

At its highest point, its velocity changed from upward to downward. 
At that instant, its velocity was zero.

The acceleration of gravity is 9.8 m/s².  That means that an object that's
acted on only by gravity gains 9.8 m/s of downward speed every second. 

-- If the object is falling downward, it moves 9.8 m/s faster every second.

-- If the object is tossed upward, it moves 9.8 m/s slower every second.

The ball took 4 seconds to lose all of its upward speed.  So it must have
been thrown upward at  (4 x 9.8 m/s)  =  39.2 m/s .

(That's about  87.7 mph straight up.  Somebody had an amazing pitching arm.)
6 0
3 years ago
What is the voltage of a motor that draws a current of 2 a and produces 240 w of power?
MA_775_DIABLO [31]
Here Power = Voltage * Current

So, Voltage = Power/Current

Put the values, 

V = 240/2

V = 120 V

In short, Your Final Answer would be: 120 Volts

Hope this helps!
8 0
3 years ago
What is the smallest possible wavelength of light?
lilavasa [31]

Explanation:

Blue or violet light has the shortest wavelength. White light is a combination of all colors in the color spectrum.

7 0
2 years ago
Other questions:
  • L
    12·1 answer
  • What is responsible for the production of x ray emission at the cutoff wavelength?
    15·1 answer
  • When light enters a piece of glass from air with an angle of θ with respect to the normal to the boundary surface?
    5·1 answer
  • The law of harmonies is referred to as _____.
    7·1 answer
  • A wooden log of density 2g/cm3 and volume 50 cm3 fall on the surface of water. Calculate its buoyant force.
    14·1 answer
  • 7. Two rocks are rolled down a hill at different speeds. At the bottom of the hill is a brick wall. Which rock will hit the bric
    5·1 answer
  • In order to be considered an ion, an atom must have a
    12·1 answer
  • a car speeds up from 10.0 m/s to 30.0 m/s in 5.00 s. the acceleration of the car is: A: 4.00 m/s^2 b: 6.00 m/s^2 c: 28.0 m/s^2 d
    8·1 answer
  • Can someone write a 200 speech that explains the difference between analog and digital waves and which one is better?
    8·1 answer
  • A rubber ball thrown at a speed of 5 m/s hit a flat wall and
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!