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
yKpoI14uk [10]
3 years ago
14

A 6.00-kg crate slides down a ramp from rest. The ramp is 1.00 m in length and inclined 30.0° above the horizontal. The crate ex

periences a constant 10.8-N friction force and continues a short distance on the horizontal floor after it leaves the ramp.
a) Use energy methods to determine the speed of the crate at the bottom of the ramp.
b) How far does the crate slide on the horizontal floor before coming to rest if it continues to experience a friction force of magnitude 10.8 N?
c) A cautious worker decides that the speed of the crate when it arrives at the bottom of the ramp may be so large that its contents may be damaged. Therefore, he replaces the ramp with a longer one such that the new ramp makes an angle of 25.0° with the ground. What is the speed of the crate at the bottom of this new ramp? Does the new ramp reduce the speed of the crate as it reaches the ground?

Physics
1 answer:
Maslowich3 years ago
4 0

Answer: a) V = 9.81 m/a

b) S = 3.905m

c) V2 = 8.29m/s

d) Yes. The speed reduces.

Explanation:

Please find the attached files for the solution

You might be interested in
Compare and contrast a compound light microscope and a transmission electron microscope. Be sure to discuss the structure and op
Anna [14]
<span>Transmission electron microscope -
 The transmission electron microscope uses electrons instead of light
. a light microscope is limited by the wavelength of light.
TEMs use electrons as "light source" and their much lower wavelength makes it possible to get a resolution a thousand times better than with a light microscope
. The possibility for high magnifications has made the TEM a valuable tool in both medical, biological and materials research.</span><span>Compound light microscope
- Microscope with more than one lens and its own light source
. There are ocular lenses in the bonicular eyepieces and objective lenses in a rotating nosepiece closer to the specimen. To ascertain the power of magnification of a compund light microscope, it's needed to take the power of the objective lens and multiply it by the eyepiece which is generally 10x. Although sometimes found as monocular with one ocular lens, the compound binocular microscope is more commonly used today. The first light microscope dates back to 1595, when Zacharias Jansen created a compound microscope that used collapsing tubes and produced magnifications up to 9X.


</span>
8 0
3 years ago
Explain why ice melts in a cup at room temperature, in terms of energy transfer and the second law of thermodynamics.
zlopas [31]

Answer:

The second law of thermodynamics describes the direction in which heat is transferred between systems, <u>heat is a form of energy</u> in transition.

This law says that heat or energy always flows spontaneously from the body or system with a higher temperature to a lower temperature system (from something hot to something cold, and not the other way around).

This is why if we leave an ice at room temperature it will eventually melt, because <u>the environment transferred energy to the ice</u> and caused its temperature to increase and thus to turn into a liquid form.

The second law can also be interpreted in terms of entropy, and tells us that entropy, which is often interpreted as a measure of disorder, always increases.

4 0
4 years ago
Mike says, I gave up guitar because I’ll never be good at it, some people seem to have a good ear music, not me. Which mindset i
AveGali [126]
A negative mind set
8 0
3 years ago
Answer to question a
frutty [35]

0.3 is your answer, good luck!!!!

7 0
3 years ago
An apple weighing 1 N falls through a distance of 1m. How much work is done
kvasek [131]

Answer:

W = F × d

W = 1 × 1

W = 1 Joule

step by step explanation

8 0
3 years ago
Other questions:
  • HELP ASAP
    10·2 answers
  • g An inductor used in a dc power supply has an inductance of 12.0 H and a resistance of It carries a current of 0.300 A. (a) Wha
    12·1 answer
  • An airline employee tosses two suitcases in rapid succession with a horizontal velocity of 7.2 ft/s onto a 50-lb baggage carrier
    9·1 answer
  • If red light hits a red filter, what kind of light comes through the filter?
    7·1 answer
  • A student was given a sample of crude acetanilide to recrystallize. The initial mass of the the crude acetanilide was 166 mg. Th
    12·1 answer
  • Your ____ never changes despite what planet you go to
    7·2 answers
  • How does mass differ from weight? List 2 differences.
    14·2 answers
  • Which button allow you to move the text enter to a higher heading level​
    15·1 answer
  • How much kinetic energy does a 50 kg rock has if its moving at a velocity of 2m/s
    15·1 answer
  • The 2 substances in the containers below were heated to 50 degrees Celsius; then left to cool to room Temp of 20 degrees Celsius
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!