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
g100num [7]
3 years ago
10

Which describes acceleration involving only a change in direction?

Physics
2 answers:
Shkiper50 [21]3 years ago
6 0
B, since it includes both an increase in speed and a change in direction.
elena-14-01-66 [18.8K]3 years ago
6 0

Answer is A. moving at constant speed around a circular track

You might be interested in
Envision holding the end of a ruler with one hand and deforming it with the other. When you let go, you can see the oscillations
lapo4ka [179]

Answer: To increase the rigidity of the system you could hold the ruler at its midpoint so that the part of the ruler that oscillates is half as long as in the original experiment.

Explanation:

When a rule is displaced from its vertical position, it oscillates back and forth because of the restoring force opposing the displacement. That is, when the rule is on the left there is a force to the right.

By holding a ruler with one hand and deforming it with the other a force is generated in the opposite direction which is known as the restoring force. The restoring force causes the ruler to move back toward its stable equilibrium position, where the net force on it is zero. The momentum gained causes the ruler to move to the right leading to opposite deformation. This moves the ruler again to the left. The whole process is repeated until dissipative forces reduce the motion causing the ruler to come to rest.

The relationship between restoring force and displacement was described by Hooke's law. This states that displacement or deformation is directly proportional to the deforming force applied.

F= -kx, where,

F= restoring force

x= displacement or deformation

k= constant related to the rigidity of the system.

Therefore, the larger the force constant, the greater the restoring force, and the stiffer the system.

5 0
3 years ago
In any energy transformation, energy is _____.
timurjin [86]

Answer:

In any energy transformation, energy is the change of energy from one form to another.

4 0
3 years ago
Read 2 more answers
A car (mass 1200 kg, speed 100 km/h) and a truck (mass 2800 kg, speed 50 km/h) are moving in the same direction along a highway.
Sloan [31]

Answer:

Speed of the wreck after the collision is 65 km/h

Explanation:

When a car hits truck and sticks together, the  collision would be totally inelastic.  Since the both the vehicles  locked  together, they have the same final velocity.

Mass of car  m_{1}=1200 kg

Mass of truck m_{2}=2800 kg

Initial speed of the car u_{1}=100 km /h

Initial speed  of the truck u_{2}=50 km /h

The final velocity of the wreck will be

m_{1}u_{1}+m_{2}u_{2}=m_{1}v_{1}+m_{2}v_{2}

since final speed are same, v_{1}=v_{2}=v

m_{1}u_{1}+m_{2}u_{2}=(m_{1}+m_{2})v

1200\times 100 +2800 \times 50 =(1200+2800)v\\v=\frac{260000}{4000} \\v=65 km/h

5 0
3 years ago
Power is equivalent to the energy released divided by the time taken to release the energy. true false
earnstyle [38]
P=E/t
check physic Formula ..
answers is true
3 0
3 years ago
What is the normal force in the image below?
saveliy_v [14]

Answer:

980.7N

Explanation:

F = m * g

F = 100 * 9.807m/s^{2}

F = 980.7N

3 0
3 years ago
Other questions:
  • what is the net force of the box and which direction will it move (50 N left, 50N left and 100 N right)​
    9·2 answers
  • How do you solve for X ? (2tan(x)-4)^3 = 27
    13·1 answer
  • [04.05] An atom has an atomic number of 12 and a mass number of 25. How many neutrons does the atom have?​
    9·1 answer
  • A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is r
    7·1 answer
  • A 0.71 W point source emits sound waves isotropically. Assuming that the energy of the waves is conserved, find the intensity (a
    9·1 answer
  • What does the big bang theory suggest
    14·1 answer
  • Write the similarity between the inclined plane and a screw?​
    9·1 answer
  • How do sports play a role in American Culture? Is this different from how sports play a role in other cultures?
    13·1 answer
  • 4. What quantity of heat is required to raise the temperature of 100
    7·1 answer
  • A cell phone weighing 80 grams is flying through the air at 15 m/s. What is its kinetic energy
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!