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
olganol [36]
3 years ago
13

Which option is a force? O A. Mass O B. Velocity O C. Acceleration O D. Weight

Physics
2 answers:
Bogdan [553]3 years ago
7 0

Answer:

the answer is D

slava [35]3 years ago
5 0

Answer:

The answer is D

Explanation:

The answer is D because weight has a lot of amount of force.

You might be interested in
What waves need molecules in order to transfer energy
nevsk [136]

Answer:

Mechanical waves

Explanation:

Waves are periodic oscillations, that carry energy, but not matter.

Waves are classified into two types:

- Mechanical waves: these waves are produced by the oscillations of the particles in a medium, which can oscillate along the  direction of propagation of the wave (longitudinal wave) or perpendicular to the direction of motion of the wave (transverse wave). These waves can only propagate in a medium, so they cannot travel in a vacuum. Examples of mechanical waves are sound waves.

- Electromagnetic waves: these waves are produced by the oscillations of electric and magnetic field. They are transverse waves. They are the only type of wave able to propagate through a vacuum (so, through space).

Therefore, the waves that need molecules in order to transfer energy are mechanical waves.

4 0
3 years ago
The flux through the coils of a solenoid changes from 2.57.10-5 Wb to 9.44.10-5 Wb in 0.0154 s. If 4.08 V of EMF is generated, h
Vinil7 [7]

Hello!

We can use Faraday's Law of Electromagnetic Induction to solve.

\epsilon = -N \frac{d\Phi_B}{dt}

ε = Induced emf (4.08 V)
N = Number of loops (?)

\Phi_B = Magnetic Flux (Wb)
t = time (s)

**Note: The negative sign can be disregarded for this situation. The sign simply shows how the induced emf OPPOSES the current.

Now, we know that \frac{d\Phi_B}{dt} is analogous to the change in magnetic flux over change in time, or \frac{\Delta \Phi_B}{\Delta t}, so:
\epsilon = N \frac{\Delta \Phi_B}{\Delta t}\\\\\epsilon = N \frac{\Phi_{Bf} - \Phi_{Bi}}{\Delta t}

Rearrange the equation to solve for 'N'.

N = \frac{\epsilon}{ \frac{\Phi_{Bf} - \Phi_{Bi}}{\Delta t}}

Plug in the given values to solve.

N = \frac{4.08}{ \frac{9.44*10^{-5} - 2.57*10^{-5}}{0.0154}}  = 914.585 = \boxed{915 \text{ coils}}

**Rounding up because we cannot have a part of a loop.

4 0
2 years ago
Two diamonds begin a free fall from rest and from the same height 1 second apart.
Bumek [7]

Answer:

Explanation:

let t be time since the second diamond is released

a) y = ½g(t + 1)²

b) y' = ½g(t)²

c)

25 = ½g(t + 1)² - ½gt²

25 = ½g(t² + 2t + 1) - ½gt²

25 = ½gt² + gt + ½g - ½gt²

25 = g(t + ½)

t + ½ = 25 / g

t = (25 / g) - ½

t = (25 / 9.8) - ½

t = 2.05102... ≈ 2.1 s

6 0
3 years ago
A copper weight weighs 268 N in air and displaces an amount of water weighing 30. N . What is the weight of the copper measured
lutik1710 [3]
I'm not too sure about this question but its weight in water might be 30N because the law of floatation states that a floating object displaces it own weight of fluid.....
4 0
4 years ago
Read 2 more answers
1kg slab of concrete loses 12,000j of heat when it cools from 30 Celsius to 26 Celsius. Determine the specific heat capacity of
OleMash [197]

The specific heat capacity of concrete is 3.0 J/(g^{\circ}C)

Explanation:

When a certain amount of energy Q is supplied/given off to/from a sample of substance with mass m, the temperature of the substance increases/decreases by an amount \Delta T, according to the equation

Q=mC_s \Delta T

where

m is the mass of the substance

C_s is the specific heat capacity of the substance

\Delta T is the change in temperature of the substance

In this problem, we have:

m = 1 kg = 1000 g is the mass of the concrete slab

Q = -12,000 J is the amount of energy lost by the slab

\Delta T = 30-26= -4^{\circ}C is the change in temperature of the slab

Solving the equation for C_s, we find the specific heat capacity of concrete:

C_s = \frac{Q}{m \Delta T}=\frac{-12,000}{(1000)(-4)}=3.0 J/(g^{\circ}C)

Learn more about specific heat capacity:

brainly.com/question/3032746

brainly.com/question/4759369

#LearnwithBrainly

3 0
3 years ago
Other questions:
  • Explain how temperature changes affect the ice on a lake ?
    11·1 answer
  • What is the term used for the rate at which distance is traveled?
    5·2 answers
  • What​ ​happens​ ​to​ ​an​ ​object​ ​as its​ ​kinetic​ ​energy​ ​increases?
    14·1 answer
  • Is fire actually hot and why do we call it hot; is it a classification for when something burns you.
    9·1 answer
  • The “Compton effect” showed
    8·2 answers
  • When a woman stands with two feet on a scale, the scale reads 280 N. When she lifts one foot, the scale reads A. less than 280 N
    8·1 answer
  • Can someone help with these/
    8·1 answer
  • A single-slit diffraction pattern is formed on a distant screen. If the width of the single slit through which light passes is r
    12·1 answer
  • An orchestra is practicing a piece that is to be played at an allegro tempo. The conductor sets a metronome at 160 beats per min
    7·1 answer
  • A solid sphere of radius 40.0cm has a total positive charge of 26.0μC uniformly distributed throughout its volume. Calculate the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!