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
GaryK [48]
3 years ago
15

a shot putter accelerates a 7.3kg shot from rest to 14m/s in 1.5r seconds. what average power was developed?

Physics
1 answer:
Sedaia [141]3 years ago
3 0

Explanation:

power =  \frac{energy \: expended}{time}

m = 7.3kg

u = 0

v = 14m/s

t = 1.5sec

P = (0.5×7.3×14²) ÷ 1.5

P = 476.93

P = 477 watt

You might be interested in
Is AG on the periodic table
Taya2010 [7]
Ag on the periodic table is silver. 
The atomic number for silver is 47, atomic symbol is Ag, and the atomic weight is 107.9.
8 0
3 years ago
What is the difference between an sa and an sb galaxy? (select all that apply.)
Free_Kalibri [48]

The difference between an sa and sb galaxy is Sa has a larger nucleus and more tightly wound arms than an Sb.

<h3>What is sa Galaxy?</h3>

Sa galaxies are normal spirals that have narrow, tightly wound arms, which usually are visible because of the presence of interstellar dust and, in many cases, bright stars.

<h3>What is sb Galaxy?</h3>

The arms of sb galaxy are more widely spread than those of the Sa variety and appear less smooth.

Thus, the difference between an sa and sb galaxy is Sa has a larger nucleus and more tightly wound arms than an Sb.

Learn more about sa galaxy here: brainly.com/question/9813915

#SPJ11

7 0
2 years ago
A bicycle traveled 150 meters west from point A to point B. Then It took the same route and came back to point A. It took a tota
Julli [10]

Answer:

Option D.  The average speed is 2.5 meters/second, and the average velocity is  0 meters/second.

Explanation:

we know that

To find out the average speed divide the total distance by the total time

Let

d -----> the total distance in meters

t -----> the time in seconds

s ----> the speed in meters per second

s=\frac{d}{t}

Remember that

1\ min=60\ sec

we have

t=2\ min=2(60)=120\ sec

d=150(2)=300\ m

substitute

s=\frac{300}{120}

s=2.5\frac{m}{sec}

<u><em>Find out the average velocity</em></u>

To find out the average velocity divide the displacement) by the time

The displacement is the distance from the start point to the end point regardless of the route

In this problem

The start point is A and the end point is A

so

The displacement  is equal to zero

therefore

The average velocity is 0 m/sec

6 0
3 years ago
What is the effect on the force if the mass is increased 3 times?
Andrei [34K]

Answer:

Force will increase 3 times

Explanation:

We know force is directly porpotional to acclereation, with the constant, m mass.

f = ma

So if we mass is increased 3 times the force will increase 3 times.

5 0
2 years ago
A proton travels at right angles through a magnetic field of 0.025 Tesla's. If the magnitude of the magnetic force on the proton
Varvara68 [4.7K]

Answer:

Velocity of proton will be equal to 4500 m/sec

Explanation:

We have given that proton moves right angles through a magnetic field

So angle between magnetic field and velocity of proton is \Theta =90^{\circ}

Magnetic field B = 0.025 Tesla

Charge on proton e=1.6\times 10^{-16}C

Magnetic force on the proton is given F=1.8\times 10^{-14}N

Magnetic force on a moving charge particle is equal to F=qvBsin\Theta

So 1.8\times 10^{-14}=1.6\times 10^{-16}\times v\times 0.025\times sin90^{\circ}

v = 4500 m/sec

So velocity of proton will be equal to 4500 m/sec

8 0
3 years ago
Other questions:
  • Death Star has a diameter of 160,000m and a mass of 5.1e17kg. Millennium Falcon has a mass of 1.36e6kg (data from Wookieepedia)
    15·1 answer
  • Two or more atoms can be held together through shared
    15·1 answer
  • Which option is a force?<br> O A. Mass<br> O B. Velocity<br> O C. Acceleration<br> O D. Weight
    7·1 answer
  • Thomas needs to move an 80 kg rock, but cannot lift it. He decides to use a
    5·1 answer
  • A plane rises from​ take-off and flies at an angle of 5 degrees5° with the horizontal runway. When it has gained 800800 ​feet, f
    12·1 answer
  • A car is moving in uniform circular motion. If the cars speed were to double to keep the car moving with the same radius the acc
    6·1 answer
  • Maria feels overwhelmed by everything she needs to do for school by next week. How can she best manage this stress?
    5·2 answers
  • What forces are acting upon a coasting car​
    12·1 answer
  • 4. The earth exerts a gravitational force of 3.5 N on an object. What is the mass of
    11·1 answer
  • Draw Aufbua diagram of sodium ion​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!