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
True [87]
3 years ago
13

An elemental trip through europe

Physics
1 answer:
Mariana [72]3 years ago
8 0
About what  elemental trip through europe
You might be interested in
A 0.155 kg arrow is shot upward
solniwko [45]

Answer:

2.43J

Explanation:

Given parameters:

Mass of the arrow = 0.155kg

Velocity = 31.4m /s

Unknown:

Kinetic energy when it leaves the bow = ?

Solution:

The kinetic energy of a body is the energy in motion of the body;

 it can be derived using the expression below:

 

   K.E  = \frac{1}{2}  m v²

m is the mass

v is the velocity

 Solve for K.E;

    K.E  =  \frac{1}{2}  x 0.155 x 31.4 = 2.43J

3 0
2 years ago
Read 2 more answers
A brick with a mass of 20 kg and a weight of 196 N is released on a frictionless plane at an angle of 30°. What is the accelerat
Veronika [31]

Answer:4.9m/s^2

Basically answer A

Explanation:

6 0
3 years ago
What do the mean by cubic expansivity​
olganol [36]
A real cubic expansivity is an increase in the volume of a liquid per unit volume per degree rise in temperature when heated in an inexpansible vessel.
5 0
2 years ago
Read 2 more answers
Describe two experiments to determine the speed of propagation of a transverse wave on a rope. You have the following tools to u
AnnZ [28]

Answer:

#See solution for details.

Explanation:

1.

Tools:stopwatch, \ meter \ stick, \ mass \ measuring \ scale , \ force \ measuring  \ device.

Experiment \ 1:Calculate the speed of the wave using the time,t it takes to travel along the rope. Rope's length,L is measured using the meter stick.

-Attach one end of rope to a wall or post, shake from the unfixed end to generate a pulse. Measure the the time it takes for the pulse to reach the wall once it starts traveling using the stopwatch.

-Speed of the pulse can then be obtained as:

v=\frac{L}{t}

Experiment \ 2: Apply force of known value to the rope then use the following relation equation to find the speed of a pulse that travels on the rope.

v=\sqrt{\frac{F}{\mu}}\ ,\mu=\frac{m}{L}

-Use the measuring stick and measuring scale to determine L,m values of the rope then obtain \mu.

-Use the force measuring constant to determine F. These values can the be substituted in Experiment \ 1 to obtain v.

4 0
3 years ago
A baby stroller is a rest on top of a hill which is 10 m high. The stroller and baby have a mass of 20 kg. What is the potential
Anettt [7]

The potential energy is defined as the energy is contained in the body due to the height over the surface of the earth and it is calculated from the equation

PE=mgh

<em>where:</em>

  • PE: the potential energy in Joules.
  • m: the mass of the body in kg.
  • g: the acceleration due to the gravity in m/s^2
  • h: the height of the body over the earth in meters.

<em>in our problem:</em>

PE=20*9.8*10=1960 J

6 0
3 years ago
Other questions:
  • How do the tension of the cord and the force of gravity affect a pendulum
    14·1 answer
  • Why should you exercise caution when taking a personality test? Some online tests may ask for too much personal information. Per
    12·2 answers
  • If I start driving 80 miles per hour down the interstate how far will I go if I Drive for 4.5 hours
    5·1 answer
  • man stands on a platform that is rotating (without friction) with an angular speed of 1.2 rev/s; his arms are outstretched and h
    15·1 answer
  • There have been different models of the atom over time. How has the competition between these models affected our understanding
    6·2 answers
  • A metal wire has a circular cross section with radius 0.800 mm. You measure the resistivity of the wire in the following way: yo
    7·1 answer
  • Kevin decides to soup up his car by replacing the car's wheels with ones that have 1.4 times the diameter of the original wheels
    11·1 answer
  • Will a series circuit work if there are two batteries and one light bulb? Help asappp please!
    15·1 answer
  • Why food cook faster with salt water than cook with pure water​
    14·2 answers
  • How much thermal energy is required to raise the temperature of a<br> 55-g glass ball by 15 °C?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!