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
Dovator [93]
3 years ago
5

Please help and I don't mean to sound rude but, ONLY ANSWER IF YOUR GOING TO DO ALL 4 QUESTIONS

Physics
1 answer:
anzhelika [568]3 years ago
6 0

Answer:

for first question is 2

for second question 1

for third question 2

for forth question 1

Explanation:

i hope i helped

You might be interested in
5) A person holds a 1.7 kg bucket and lets it move down at
Elena L [17]

Answer:

12.5J

Explanation:

Given parameters:

Mass of bucket  = 1.7kg

Height  = 75cm  = 0.75m

Unknown;

Work done on the bucket by the person  = ?

Solution:

To solve this problem, we use the work done equation;

  Work done  = force x distance  = mgh

 m is the mass  

  g is the acceleration due to gravity

  h is the height

Now, insert parameters and solve ;

     Work done  = 1.7 x 9.8 x 0.75  = 12.5J

7 0
3 years ago
When you view the pendulum’s swing, it shows that at the very top of the swing KE = 0. What does that tell you about the pendulu
nadezda [96]

it tells you that it has a lot of force

5 0
3 years ago
Read 2 more answers
What is the specific heat capacity of water?
Finger [1]
The specific heat of water is 4.186.
8 0
3 years ago
To calibrate the calorimeter electrically, a constant voltage of 3.6 V is applied and a current of 2.6 A flows for a period of 3
iren [92.7K]

Answer:

372.3 J/^{\circ}C

Explanation:

First of all, we need to calculate the total energy supplied to the calorimeter.

We know that:

V = 3.6 V is the voltage applied

I = 2.6 A is the current

So, the power delivered is

P=VI=(3.6)(2.6)=9.36 W

Then, this power is delivered for a time of

t = 350 s

Therefore, the energy supplied is

E=Pt=(9.36)(350)=3276 J

Finally, the change in temperature of an object is related to the energy supplied by

E=C\Delta T

where in this problem:

E = 3276 J is the energy supplied

C is the heat capacity of the object

\Delta T =29.1^{\circ}-20.3^{\circ}=8.8^{\circ}C is the change in temperature

Solving for C, we find:

C=\frac{E}{\Delta T}=\frac{3276}{8.8}=372.3 J/^{\circ}C

5 0
3 years ago
Which one of the following choices is an effective way to pervent low-back pain
tangare [24]
C. Maintain correct Posture
7 0
4 years ago
Other questions:
  • If you are building a clock by using a pendulum's oscillations to keep time and you find the period is a little too small (the c
    6·1 answer
  • i know this is a lot to do but i will give you the highest amount of points (100, but you get 50 from it.) and i will cash app y
    5·1 answer
  • How many electrons make up a charge of 3.5kC?
    9·2 answers
  • Two identical point charges of +Q coul are separated by a distance of 10 cm.
    11·1 answer
  • Gravitational force between two objects depends on
    10·2 answers
  • For any planet, if the planet were to shrink, but have constant mass, what would happen to the value of gravity acceleration (g)
    5·1 answer
  • Which is NOT an INHERITED TRAIT?
    15·2 answers
  • 5. A ball weighing 10 kg rolls 200 m down a frictionless incline with a 50 degree angle to the horizontal. If the ball’s initial
    6·1 answer
  • Describe the importance of conservative forces to conservation of energy.
    7·1 answer
  • A person stands 6.00 m from a speaker, and 8.00 m from an identical speaker. What is the wavelength of the first (n=1) interfere
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!