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
Kamila [148]
2 years ago
7

PLEASE HELP ASAP.

Physics
1 answer:
kifflom [539]2 years ago
4 0

Volume of the original block (V) of length (l), width (w) and height (h) is given by the following equation

V = l*b*h

hence volume of original block, V =  (6)(4)(10) = 240 cm^{3}

Now say we cut this block in two equal parts, than the length of new block will    be 6/2 = 3 cm ; where as its width and height will be same as of original block i.e. 4 cm and 10 cm respectively.

So, Volume of half-block is = (3)(4)(10) = 120 cm^{3} ; or we can say that the volume of half-block is half that of orignal block.

You might be interested in
How does electricity affect objects that are not in contact with one another?
Elan Coil [88]

Electrostatic forces are non-contact forces; they pull or push on objects without touching them

5 0
2 years ago
2) A 0.4kg ball moves in horizontal circle of radius 3 m at speed of 100m/s. What
sweet-ann [11.9K]

Answer:

F = 1300 N

Explanation:

F = mv²/R = 0.4(100²)/3 = 1333.3333...

6 0
2 years ago
An object accelerates in a direction that is always perpendicular to its motion.what is the effect if any of the acceleration on
mars1129 [50]
If its accelerating it will increase velocity in the direction of the acceleration which is perpendicular to the velocity.
3 0
3 years ago
A 100 kg box sits on an incline held at rest by a very thin rope attached to another mass hanging as shown. The force of frictio
MAVERICK [17]

If friction is acting along the plane upwards

then in this case we will have

For equilibrium of 100 kg box on inclined plane we have

mgsin\theta = F_f + T

also for other side of hanging mass we have

T = Mg = 50(9.8) = 490 N

now we have

100(9.8)sin\theta = 100 + 490

980sin\theta = 590

sin\theta = 0.602

\theta = 37 degree

In other case we can assume that friction will act along the plane downwards

so now in that case we will have

mgsin\theta + F_f = T

also we have

T = Mg = 50(9.8) N

now we have

100(9.8)sin\theta + 100 = 50(9.8)

980sin\theta + 100 = 490

980 sin\theta = 490 - 100

sin\theta = 0.397

\theta = 23.45 degree

<em>So the range of angle will be 23.45 degree to 37 degree</em>

6 0
3 years ago
A small ball with mass 2.50 kg is mounted on one end of a rod 0.750 m long and of negligible mass. The system rotates in a horiz
alina1380 [7]

Answer:

1.40625 kg-m^2

Explanation:

Supposing we have to calculate rotational moment of inertia

Given:

Mass of the ball m= 2.50 kg

Length of the rod, L= 0.78 m

The system rotates in a horizontal circle about the other end of the rod

The constant angular velocity of the system, ω= 5010 rev/min

The rotational inertia of system is equal to rotational inertia of the the ball about other end of the rod because the rod is mass-less

I_{sys}= mL^2= 2.50\times 0.75^2

=1.40625 kg-m^2

m= mass of the ball and L= length of the ball

3 0
3 years ago
Other questions:
  • What is newstons 2nd law
    8·2 answers
  • What is isostasy dependent on a balance between
    10·2 answers
  • Please select the word from the list that best fits the definition site of sea-floor spreading
    6·1 answer
  • Condensation and rarefaction in a longitudinal wave correspond, respectively, to what parts of a transverse wave? Group of answe
    6·1 answer
  • Bonnie and Clyde are sliding a 323 kg bank safe across the floor to their getaway car. The safe slides with a constant speed if
    5·1 answer
  • Petroleum contains _____ energy.<br> A. light<br> B. kinetic<br> C. chemical<br> D. mechanical
    8·2 answers
  • Which component of a galaxy is found in the space between the stars and gives the appearance of bright, colorful clouds?(2 point
    9·2 answers
  • An 1876 N crate is being pushed across a level force at a constant speed by a force of 747 N. What is the coefficient of kinetic
    9·1 answer
  • What is the formula for disulfur trichloride
    12·2 answers
  • Each statement below is a definition or an example of force, work, potential energy, or kinetic energy. Drag each into the box t
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!