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
patriot [66]
3 years ago
12

A constant force pushes on a brick, as shown below. A constant force pushes on three bricks as shown below. 师

Physics
1 answer:
JulijaS [17]3 years ago
7 0

Answer:

5 UNDER 5

Explanation:

GG

You might be interested in
A 3.0-kilogram toy dump truck moving with a speed of 4.0 m/s starts up a ramp. How high does the truck roll before it stops?
baherus [9]

Before it reaches the ramp, the toy's kinetic energy is

                                        (1/2) (mass) (speed²)

                                   =   (1/2) (3 kg) (16 m²/s²)

                                   =          24 Joules .

On the way up the ramp, its kinetic energy will change to
gravitational potential energy, and it'll stop when it's height
gives it  24 joules of potential energy.

         Potential energy  =  (mass) (gravity) (height)

                    24  joules  =  (3 kg) (9.8 m/s²) (height)

Divide each side by  29.4 kg-m/s²  (that's the same as 29.4 newtons):

                    Height  =  24 joules / 29.4 newtons

                                =      0.816 meter higher than the bottom of the ramp.
7 0
4 years ago
A 10 kg ball is traveling at the same speed as a 1 kg ball. Compared to the 10 kg ball, the 1 kg ball has
Colt1911 [192]
We can compare the two by their kinetic energies. The kinetic energy is the energy when an object is in motion. It is expressed as the product of the mass of the object and the square of the velocity divided by two. We assume a velocity of 1 m/s for this problem.<span>

KE = mv^2/2
KE1 = 10 (1)^2
KE1 = 10 J

KE2 = 1(1)^2
KE2 = 1 J

Therefore, c</span><span>ompared to the 10 kg ball, the 1 kg ball has lesser kinetic energy.</span>
3 0
3 years ago
Distance and direction of an object's change in position from a starting point are:
blsea [12.9K]

Answer:

An object changes position if it moves relative to a reference point. The change in position is determined by the distance and direction of an object's change in position from the starting point (displacement). Direction • Direction is the line, or path along which something is moving, pointing, or aiming.

Explanation:

4 0
3 years ago
Read 2 more answers
Can somebody help please !!!!
Nataly [62]

Vector A is of magnitude 12 m and it makes an angle of 37 degree with Y axis

So here we can say that

\frac{A_x}{A} = sin37

A_x = A sin37

A_x = 12 sin37

A_x = 7.22 m

Similarly we have

\frac{A_y}{A} = cos37

A_y = A cos37

A_y = 12 cos37

A_y = 9.58 m

So here we have

A_y = 9.58 m, A_x = 7.22 m

option A is correct

3 0
3 years ago
The acceleration of a baseball pitcher's hand as he delivers a pitch is extreme. For a professional player, this acceleration ph
SashulF [63]

Answer:

116 N.

Explanation:

Given,

mass of the ball, m = 0.145 Kg

initial speed = 0 m/s

Final speed = 40 m/s

time = 50 ms = 0.05 s

Force is equal to change in momentum per unit time

F = \dfrac{m\Delta v}{\Delta t}

F = \dfrac{0.145(40-0)}{0.05}

F = 116 N

Force of the pitcher hand on the ball is equal to 116 N.

4 0
3 years ago
Other questions:
  • Is most of the mass of an atom located in the nucleus or outside the nucleus how do you know?
    8·1 answer
  • The slowest animal (crab) travels at 5.70 km/yr, how long does it take to travel 80 km?<br> Vouab
    10·1 answer
  • In a nuclear power plant, _____.
    6·2 answers
  • An experiment yielded the above temperature and time information. what is the freezing point of the material in this experiment
    10·1 answer
  • An ionic compound is not represented by a molecular formula because an ionic compound is
    14·1 answer
  • Galileo was the first scientist to do which of the following?
    13·2 answers
  • A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. It has an electr
    5·1 answer
  • 2. Assertion (A): Two vectors are said to be like vectors if they have same direction.
    11·1 answer
  • An electron moves in a circle of radius r = 4.52 × 10-11 m with a speed 2.80 × 106 m/s. Treat the circular path as a current loo
    5·1 answer
  • Five scientist who travelled to space​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!