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
EleoNora [17]
3 years ago
9

(01.02 MC) Nicole pushes her bike up a hill. Overhead, the sun exerts a gravitational force on Earth. Which statement is true ab

out the bike and Earth?
They both experience contact forces. They both experience non-contact forces.

The bike experiences a non-contact force and Earth experiences a contact force.

The bike experiences a contact force and Earth experiences a non-contact force.

They both experience non-contact forces.
Physics
2 answers:
jarptica [38.1K]3 years ago
7 0

When Nicole pushes the bike up a hill we know there is a friction force between hill and bike then due to this friction force It will have to push harder to move it upwards along the hill.

So this type of friction force during uphill is a type of contact force which is present of the bike.

Apart from this there are also few non contact force between bike and its surroundings

One of the force is gravitational force of Sun and Earth on the bike while will act towards their centers.

This force is a field force and it do not require any contact with the bike

So here correct answer would be

<em>They both experience contact forces. They both experience non-contact forces. </em>

seraphim [82]3 years ago
7 0

Answer:

non contact :C

Explanation:

You might be interested in
a 1500 kg car accelerates uniformly from rest to 10.0 meters per secound in 3.0 secound .what is the work done on the car in thi
zubka84 [21]

Answer:

The work done on the car is, W = 75,000 J

The power delivered by the engine, P = 25,000 watts

Explanation:

Given,

The mass of the car, m = 1500 Kg

The initial velocity of the car, u = 0

The final velocity of the car, v = 10 m

The time duration of the travel, t = 3 s

Using the first equation of motion

                     v = u + at

                     a = (v - u) / t

Substituting the given values in the above equation

                    a = (10 - 0) / 3

                       = 3.33 m/s²

Using the second equations of motion

                      s = ut + 1/2 at²

                         = 0 + 0.5 x 3.33 x 3²

                         = 15 m

The force exerted by the car

                         F = m x a

                            = 1500 Kg x 3.33 m/s²

                            = 5000 N

The work done by the car,

                          W = F x S

                               = 5000 N x 15 m

                               = 75,000 J

Hence, the work done on the car is, W = 75,000 J

The power delivered by the engine,

                            P = W / t

                                = 75,000 J / 3 s

                                 = 25,000 watts

The power delivered by the engine, P = 25,000 watts

5 0
3 years ago
Which characteristic do all minerals have in common?
Korolek [52]

Answer:

Five Characteristics of a Mineral

Minerals Are Natural. You must find minerals in nature; substances concocted in laboratories don't qualify. ...

Minerals Are Inorganic. ...

Minerals Are Solids. ...

Definite Chemical Composition. ...

Crystalline Structure.

These are just some examples.

Explanation:

7 0
3 years ago
Read 2 more answers
A(n) 93 kg clock initially at rest on a horizontal floor requires a(n) 610 N horizontal force to set it in motion. After the clo
denpristay [2]

Answer:0.669

Explanation:

Given

mass of clock 93 kg

Initial force required to move it 610 N

After clock sets in motion it requires a force of 514 N to keep moving it with a constant velocity

Initially static friction is acting which is more than kinetic friction

thus 613 force is required to overcome static friction

\mu _smg=610

\mu _s\times 93\times 9.8=610

\mu _s=0.669

5 0
3 years ago
When a wave is acted upon by an external damping force what happens to the energy of the wave
Nimfa-mama [501]

Answer:

A-the energy of the wave decreases gradually

Explanation:

when a wave is acted upon by an external damping force the energy of the wave decreases gradually.

The energy degrades into the form of heat which is considered to be of less value and use. The reason is because it disperses and spreads more widely.

So therefore it end up as heat with a little sound but that is close to none because that too disperses into heat i.e. decreased form of energy.

4 0
3 years ago
What is helpful in calculating standard deviation?
Oksana_A [137]
<span>Standard deviation is a calculation. It I used in statistical analysis of a easier job. hoped this helps u </span>
4 0
3 years ago
Other questions:
  • PLEASE HELP WILL GIVE BRAINLESS ANSWER
    15·1 answer
  • the number of electrons in a copper penny is approximately 10 10^23. How large would the force be on an object if it carried thi
    12·1 answer
  • What type of energy is it when rain falls?
    7·1 answer
  • In a loop-the-loop ride a car goes around a vertical, circular loop at a constant speed. The car has a mass m = 268 kg and moves
    11·1 answer
  • Three point charges are located in the x-y plane. q1 = -52.1 nC at (0.00, +3.10 cm), q2 = +25.4 nC at (-4.70 cm, 0.00) and q3 =
    6·1 answer
  • Help pls pls i give reward
    10·2 answers
  • On the surface of Earth, a spacecraft has a mass of 2.00 x 104 kilograms. What is the mass of the spacecraft at a distance of on
    15·1 answer
  • If a charge travels through a magnetic field, it experiences a magnetic force and its velocity is perpendicular to the direction
    12·1 answer
  • Draw a ray diagram indicating the change in the path of light
    11·1 answer
  • One fine summer day a group of students was jumping from a railroad bridge into the river below. They stepped off the bridge wit
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!