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
stira [4]
4 years ago
11

An object moves in a straight line and is speeding up. Which one of the following statements is true?

Physics
1 answer:
kaheart [24]4 years ago
3 0
I could be wrong on this one, but I think the answer is the first option, The net force on the object is in the direction of motion.

Friction can be acting on the object, but if the other force(s) that are acting on the object are greater, I think the object will still be able to accelerate.

The third option can't be true, according to Newton's second law (f=ma). If there were no forces acting on the object, or if the net forces cancelled each other out, the object wouldn't be accelerating unless its mass was changing.

I suppose the last option is also technically true, but the first is more specific..?
You might be interested in
A metal object is suspended from a spring scale. The scale reads 920 N when the object is suspended in air, and 750N when the ob
Ostrovityanka [42]

17.3 L.

<h3>Explanation</h3>

The object appears 920 - 750 = 170\;\text{N} lighter in water than in the air. Water has supplied that 170 N of buoyant force.

The size of the buoyant force on an object in water is the same as the weight of water that the object has displaced. The buoyant force on the metal object here is 170 N. The object must have displaced water of the same weight.

g = 9.81 \;\text{N}\cdot\text{kg}^{-1}.

Mass of water displaced:

\text{Mass} = \dfrac{\text{Weight}}{g} = \dfrac{170}{9.81} = 17.3 \;\text{kg}.

Volume of water displaced:

The density of water at room temperature is 1.000\;\text{kg}\cdot\text{dm}^{-3}. Each kilogram of water will occupy a volume of 1 dm³ (one cubic decimeter), which is the same as 1 L (one liter).

V = \dfrac{\text{Mass}}{\text{Density}} =\dfrac{m}{\rho} = \dfrac{17.3\;\text{N}}{1.000\;\text{kg}\cdot\text{dm}^{-3}} = 17.3\;\text{dm}^{-3}=17.3\;\text{L}.

Volume of the object:

The object is completely under water. As a result, the volume of the object will be the same as the volume of water displaced. The volume of the object is also 17.3 L.

3 0
3 years ago
Can someone help me with this​
Gemiola [76]

Answer:

5 . the correct answer is option 3rd , these continents were once single landmass !

6. correct answer is option 2nd ! Relative dating is the science of determining the relative order of past events (i.e., the age of an object in comparison to another), without necessarily determining their absolute age (i.e. estimated age). In geology, rock or superficial deposits, fossils and lithologies can be used to correlate one stratigraphic column with another.

8 0
3 years ago
What level of education is required to obtain a position as a insurance billing specialist ?
Georgia [21]

Answer:

Billing experts at the entry level are normally expected to have a high school diploma or equivalent, as well as skills, certifications, and experience. Some jobs require at least an associate's or bachelor's degree.

Explanation:

8 0
2 years ago
Read 2 more answers
Define the term energy density of a body under strain​
vodka [1.7K]

Answer:

Please mark as Brainliest!!

Explanation:

Strain energy is defined as the energy stored in a body due to deformation. The strain energy per unit volume is known as strain energy density and the area under the stress-strain curve towards the point of deformation. When the applied force is released, the whole system returns to its original shape.

8 0
3 years ago
What arr some of the benefits of using the energy of the water to do work?
Morgarella [4.7K]

Hydropower is fueled by water, so it's a clean fuel source, meaning it won't pollute the air like power plants that burn fossil fuels, such as coal or natural gas.

Hydroelectric power is a domestic source of energy, allowing each state to produce their own energy without being reliant on international fuel sources.

The energy generated through hydropower relies on the water cycle, which is driven by the sun, making it a renewable power source, making it a more reliable and affordable source than fossil fuels that are rapidly being depleted.

8 0
3 years ago
Other questions:
  • Does anybody watch this anime?
    11·2 answers
  • Which statement best compares and contrasts two physical properties of matter?
    15·1 answer
  • 100 POINTS- An output gear has 10 teeth and an input gear has 40 teeth. What is the mechanical advantage of this gear combinatio
    8·2 answers
  • What do scientists now believe is the key factor in transferring information from short term memory
    5·1 answer
  • Select the correct answer.
    14·2 answers
  • Geophysicists have estimated that the temperature at the center of the Earth's
    15·1 answer
  • An image of a car with height of 14 cm occurred in the mirror which is located at a T-
    12·1 answer
  • The components of a vector are:
    6·1 answer
  • Two people each do 100 joules of work by pushing a crate to the right. During this process, 50 joules of heat is generated from
    11·1 answer
  • Which class of hazards is characterized by thermal and mechanical hazards in the form of blast pressure waves, shrapnel and frag
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!