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
MariettaO [177]
3 years ago
12

Suppose that the radius of the circular path is r when the speed of the rocket is v and the acceleration of the rocket has magni

tude a. If the radius and speed are increased to 2r and 2v respectively, what is the magnitude of the rocket's subsequent acceleration?
a) 3 B) 2a C) a D) 4a E) 8a
Physics
1 answer:
SCORPION-xisa [38]3 years ago
4 0

Answer:

A3

Explanation:

You might be interested in
A 20.0-N weight slides down a rough inclined plane which makes an angle of 30 degree with the horizontal. The weight starts from
Ulleksa [173]

Answer:

1270.64\ \text{J}

Explanation:

m = Mass of object = \dfrac{mg}{g}

mg = Weight of object = 20 N

g = Acceleration due to gravity = 9.81\ \text{m/s}^2

v = Final velocity = 15 m/s

u = Initial velocity = 0

d = Distance moved by the object = 150 m

\theta = Angle of slope = 30^{\circ}

f = Force of friction

fd = Work done against friction

The force balance of the system is

\dfrac{1}{2}m(v^2-u^2)=(mg\sin\theta-f)d\\\Rightarrow \dfrac{1}{2}mv^2=mg\sin\theta d-fd\\\Rightarrow fd=mg\sin\theta d-\dfrac{1}{2}mv^2\\\Rightarrow fd=20\times \sin 30^{\circ}\times 150-\dfrac{1}{2}\times \dfrac{20}{9.81}\times 15^2\\\Rightarrow fd=1270.64\ \text{J}

The work done against friction is 1270.64\ \text{J}.

8 0
3 years ago
If a 580 N net force acts on a 40 kg what will the acceleration of the car be
myrzilka [38]

Answer:

I think u have to do 580N times 40KG

7 0
2 years ago
Read 2 more answers
Which subatomic particle has a negative charge?
ValentinkaMS [17]

Answer:

C. \displaystyle electron

Explanation:

0 charge → <em>Neutron</em>

1 charge → <em>Proton</em>

I am joyous to assist you anytime.

4 0
3 years ago
How is homeostasis maintained for blood glucose
luda_lava [24]

Insulin and glucagon help maintain blood glucose levels

6 0
3 years ago
In the simulation, there are three balls on the floor. Drag each of them up off the floor, and then let go. See what happens to
Vlad1618 [11]

Answer:

I hope this helps and I'm not to late

A way the balls behave the same way is by bouncing about 1 time after throwing the balls up. A way the balls act differently is the blue ball is bouncier than all the balls, the red ball bounces about 2 times before stopping, and the green ball doesn’t really bounce except for one time.

Explanation:

you also can use paraphrase to help you reword bye bye!!

7 0
2 years ago
Other questions:
  • What is the difference between mass and weight?
    15·1 answer
  • For general projectile motion, which of the following best describes the horizontal component of a projectile's acceleration? As
    9·1 answer
  • Photosynthesis is an endothermic chemical reaction that forms sugars from carbon dioxide, water, and the sun's energy. Which of
    13·2 answers
  • HEEEEELP!!!!!! :((( help me with this exercise.
    13·1 answer
  • I NEED HELP ASAP!!!!!!!!!!!!!!!!
    12·2 answers
  • Charges q1 and q2 exerts repulsive forces of 10N on each other what is the repulsive force when their separation is decreasing s
    5·1 answer
  • A 1,100 kg car is traveling initially 20 m/s when the brakes are applied. The brakes apply a constant force while bringing the c
    9·1 answer
  • A toy gun uses a spring to shoot plastic balls (m = 50 g). The spring is compressed by 3.0 cm. Let k=2.22 × 105 N/m. (a) Of cour
    8·1 answer
  • Difference between effort distance and load distance​
    14·1 answer
  • Each vertical line on the graph is 1 millisecond (0.001 s) of time. What is the period and
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!