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
Svetach [21]
3 years ago
12

Measure the mass of a coin using a triple beam balance.

Physics
1 answer:
Mariana [72]3 years ago
7 0

Explanation:

The triple beam balance is used to measure masses very precisely; the reading error is 0.05g

You might be interested in
Please help<br>please help
Pachacha [2.7K]
D?.... I think? My guess anyway
8 0
3 years ago
4.) What are examples of physical and chemical properties?
lubasha [3.4K]

Answer:

Some physical properties are odor (Sewage smell), and melting and boiling point (boiling water melting ice).

Some chemical properties are  flammability (burning wood), and oxidation (rotting apple).

Explanation:

7 0
3 years ago
A car has an initial velocity of 11.2 m /sec. the car accelerates at 10.0 m /s2 for 8.0 seconds. what is the velocity of the car
Vinil7 [7]
Initial velocity(u) = 11.2 m/s.
Final velocity(v) = ?
acceleration(a) = 10.2 m/s²

Using kinematic equation v = u + at

v = 11.2 + 10 x 8 = 11.2 + 80 = 91.2 m/s.

Therefore final velocity is 91.2 m/s.
7 0
3 years ago
A cat is sleeping on the floor in the middle of a 2.8-m-wide room when a barking dog enters with a speed of 1.40 m/s. As the dog
marysya [2.9K]

Answer:

the cat is  0.4238 m in front of the dog as it leaps through the window

Explanation:

Given that;

acceleration a = 0.85 m/s²

speed v = 1.40 m/s

the cat is at rest, so initial velocity u = 0  

we know that, since the cat is sleeping on the floor in the middle of a 2.8-m-wide room, it needs to cover (2.8 m / 2 ) distance to get to the window;

using the second equation equation of motion;

s = ut + 1/2 at²  

we substitute

2.8/2 = 0×t + 1/2 × 0.85 × t²

1.4 = 0.425t²

t = √( 1.4 / 0.425 )

t = 1.81497 sec

now, at acceleration 0.10 m/s²

the dog has to cover the distance;

s = ut + 1/2 at²  

s = ( 1.4 × 1.81497) - 1/2 × 0.10 × 1.81497²

s =  2.540958 - 0.1647

s = 2.3762 m  

The cant in front of the dog as it leaps through the window;

distance = 2.8 m - 2.3762 m

distance = 0.4238 m

Therefore, the cat is  0.4238 m in front of the dog as it leaps through the window

7 0
3 years ago
the coefficient of kinetic friction between a couch and the floor is 0.65. if the couch has a mass of 42 kg and you push it with
Anna [14]

Explanation:

The net force along the horizontal direction is

\sum{F_x} = F_{applied} - f

where f is the frictional force. We can find the frictional force by looking at the vertical forces acting on the couch:

\sum{F_y} = N - mg = 0 \Rightarrow N = mg

From the definition of frictional force,

f = \mu{N} = \mu{mg} = (0.65)(42\:\text{kg})(9.8\:\text{m/s}^2)

\:\:\:\:= 267.5\:\text{N}

Therefore, the net force on the couch is

\sum{F_x} = 600\:\text{N} - 267.5\:\text{kN} = 332.5\:\text{N}

4 0
2 years ago
Other questions:
  • Which activity best reflects a muscle movement working against gravity? a lifting the torso during a sit up b lowering the body
    13·2 answers
  • Two 10.0-cm-diameter electrodes 0.50cm apart form a parallel-plate capacitor. The electrodes are attached by metal wires to the
    7·1 answer
  • A piece of thin uniform wire of mass m and length 3b is bent into an equilaeral triangle.
    13·1 answer
  • Would electromagnetic waves exist if changing magnetic fields could produce electric fields but changing electric fields could n
    11·1 answer
  • How many hours are in a month of 30 days?
    6·1 answer
  • The rate of rotation of the disk is gradually increased. The coefficient of static friction between the coin and the disk is 0.5
    8·1 answer
  • Suppose a horizontal wind blows with a speed of 12.6 m/s outside a large pane of plate glass with dimensions 3.00 m x 1.80 m. As
    11·1 answer
  • List the compositional layers in order of most dense to least dense
    12·1 answer
  • The length of a brick is 30cm,breadth 20 cm and volume 9000 cm³.Find the height of the brick.
    11·1 answer
  • What are the types of nuclear radiation ? (Particles let off by nuclear<br> materials.) *
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!