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
Juli2301 [7.4K]
3 years ago
14

A pushing force acts on a toy car for 3 seconds causing it to accelerate at a rate A’. If the car is replaced with a similar, bu

t larger toy of 2 times greater mass and the same pushing force is applied for the same amount of time, the acceleration of the larger toy car will be
Physics
2 answers:
anzhelika [568]3 years ago
7 0

Answer:

C

Explanation:

EDGE 2021

Alla [95]3 years ago
3 0

Answer:

one-half of A'

Explanation:

You might be interested in
If an X-ray beam of wavelength 1.4 × 10-10 m makes an angle of 20° with a set of planes in a crystal causing first order constru
Flura [38]

Answer:

43.16°

Explanation:

λ = Wavelength = 1.4×10⁻¹⁰ m

θ₁ = 20°

n can be any integer

d = distance between the two slits

Since for the first bright fringe, n₁ = 1

n₂ = 2 for second order line

The relation between the distance of the slits and the angle through which it is passed is:

dsinθ=nλ

As d and λ are constant

\frac{n_1\lambda}{sin \theta_1}=\frac{n_2\lambda}{sin \theta_2}\\\Rightarrow \frac{1}{sin20}=\frac{2}{sin\theta_2}\\\Rightarrow sin\theta_2=\frac{2}{\frac{1}{sin20}}\\\Rightarrow \theta_2=sin^{-1}{\frac{2}{\frac{1}{sin20}}}\\\Rightarrow \theta_2=43.16^{\circ}

∴ Angle by which the second order line appear is 43.16°

5 0
3 years ago
Who exerts more pressure? a) A girl of 50 kg, wearing heels with an area of 1 cm2. b) An elephant of 4000 kg with foot area of 2
Mrrafil [7]

Answer:

The girl exerts more pressure.

Explanation:

Pressure can be defined as the force exerted normally or perpendicularly per unit area.

i.e P = F/A

<u>Girls</u>

Area of the heel = 1cm² = 10^(-4) m²

Force = mg = 50 × 10 = 500N

Pressure =

\frac{500}{10 ^{ - 4} }

= 5 \times  {10}^{6}

<u>Elephant</u>

<u>Area</u><u> </u><u>=</u><u> </u><u>2</u><u>5</u><u>0</u><u>cm</u><u>²</u><u> </u><u>=</u><u> </u><u>2</u><u>.</u><u>5</u><u> </u><u>x</u><u> </u><u>1</u><u>0</u><u>^</u><u>(</u><u>-</u><u>2</u><u>)</u><u>b</u><u> </u><u>m</u><u>²</u>

<u>Force</u><u> </u><u>=</u><u> </u><u>mg</u><u> </u><u>=</u><u> </u><u>4</u><u>0</u><u>0</u><u>0</u><u>0</u><u>N</u>

<u>Pressure</u><u> </u><u>=</u><u> </u>

<u>\frac{40000}{2.5 \times  {10}^{ - 2} }</u>

<u>= 1.6 \times  {10}^{6}</u>

5 0
3 years ago
2. (1 point) Two metal spheres with different radii are each hanging from insulating nylon threads. One of the spheres has a net
DiKsa [7]

Answer:

A. attract each other

Explanation:

When the neutral sphere is brought close to the negatively charged, as charges can move freely in a conductor, some electrons will be repelled, leaving a net positive charge (equal in magnitude ot the charge in the other sphere) on the surface of the neutral sphere, which will cause that both spheres attract each other.

6 0
3 years ago
I need help the option for D is the golfball isnt accelerating
algol13

Answer:

es b

Explanation:

no se

8 0
3 years ago
A toy car sits motionless at the top of a ramp. What will happen to the car if a balanced force acts upon it?
dexar [7]

Answer:

kinetic energy because when the car moves again it will be faster then it was before

5 0
2 years ago
Other questions:
  • Classify Use periodic table to classify the elements potassium (K) ,Bromine (Br) and argon, (Ar) according to know likely their
    6·1 answer
  • Why would an atomic nucleus give off a particle?
    14·1 answer
  • An electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate (see
    12·1 answer
  • Lol<br>idk what this is​
    8·2 answers
  • Calculate how much work is done if a current of 2A flows through a potential difference of 12V for 2 minutes
    14·1 answer
  • QuestIuI
    10·1 answer
  • What type of eclipse is shown? How do you know?
    6·2 answers
  • Queremos un cilindro de simple efecto que utilice en su funcionamiento un volumen de aire a presión atmosférica de 13,122 litros
    12·1 answer
  • What is the mean of 22, 72, 79, 72, and 70
    8·1 answer
  • Which of the following is an example of the law of multiple proportions?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!