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
Leokris [45]
3 years ago
11

A student releases a marble from the top of a 130cm ramp. The marble increases speed steadily and reaches the bottom of the ramp

with a speed of 140cm/s. Determine all unknowns and answer the following question.
How long did the marble take to reach the bottom of the ramp?

PLZ HELP ASAP
Physics
1 answer:
bearhunter [10]3 years ago
5 0

Explanation:

V=p/t

t=p/V

p=130cm

V=140cm/s

t=130/140s = 13/14s

You might be interested in
a train is moving at 4.0 km/h. It accelerates at 60 km/h/s for 0.75 h. What is its speed by the of the 0.75 h
erica [24]

Answer:

49 km/h

Explanation:

60 km/h acceleration for 0.75 hours.

60 × 3/4 = 45 km/h

Take the acceleration and add it to the speed the train was already moving at:

45 + 4 = 49km/h

8 0
3 years ago
How much energy does a 100 W light bulb use in 24 hours?? Show all your work....
GalinKa [24]
How much does it use per hour or minute or second? its impossible to answer this question i think
7 0
3 years ago
If a 375 mL sample of water was cooled from 37.5 C to 0 C how much heat was lost in joules?
Leviafan [203]
Please, you have to apply the formula below:

<span>Q=c∗m∗Δt

</span><span> where Q is the energy lost,
 
c is the specific heat of water,
 
m is the mass of water involved,

so m=3.75 *10^-1 Kg
 
c=4,184 J/(Kg*°C)

<span>delta t=37.5 °C

I hope my answer has come to your help. God bless and have a nice day ahead!
</span></span>
3 0
3 years ago
A baseball bat strikes a baseball of mass that is at rest, and as a result the baseball files away from the bat. The kinetic ene
mars1129 [50]

Answer:

The correct option is D

Explanation:

When an object at rest is acted upon by an external force, the motion gained (of the body) will proceed in the direction of the force. <u>This is caused by the workdone by the bat on the ball</u>. The motion gained mentioned earlier is the kinetic energy.

Kinetic energy can be described as the energy in a moving object.

7 0
3 years ago
Read 2 more answers
Which of the following forms of radiation can be shielded by earths atmosphere? Gamma rays,radio waves,visible light, all of the
sesenic [268]
Gamma rays are mostly absorbed. So its probably
 
Gamma Rays

8 0
3 years ago
Other questions:
  • How do helmets protect your head? a. By creating a large area to spread out the pressure of a blow to your head. b. By focusing
    9·2 answers
  • Chemicals in the air can combine with rain to produce acid rain, which is harmful to the environment. Which of these is most lik
    6·1 answer
  • Help ASAP with equation and answer pls. Numbers 2 3 4
    5·1 answer
  • Which term is defined as a change in an object's position relative to a reference point?
    14·2 answers
  • A 12cm candle is placed 6cm from a converging lens with a focal length of 15cm. What is the height of the image of the candle? S
    15·1 answer
  • Which of the following explains why doctors practice antiseptic medicine?
    8·1 answer
  • Explain the uses of displacement time graph​
    10·1 answer
  • the lambda baryon has the quark composition uds. which particle has the same electric charge as the lambda baryon?
    13·1 answer
  • What is the correct Lewis structure for group 5A element, arsenic?
    12·2 answers
  • judith weighs twice as much as Kristina.judith can run up a flight of stairs in 5 seconds while Kristina requires 10 seconds.com
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!