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
VMariaS [17]
2 years ago
5

An object is moving in a straight line with a constant acceleration. Its position is measured at three different times, as shown

in the table below.
Time (s) 1 Position, (m)
37.70 9.600
39.30 18.048
40.90 33.792
Calculate the magnitude of the acceleration at t=39.30
Physics
1 answer:
stiv31 [10]2 years ago
4 0

The constant acceleration of the object is 0.414\ m/s^2.

<h3>Acceleration of the object</h3>

The acceleration of the object is constant, and the values at the three different positions is the same.

<h3> For the first position and time</h3>

s = v_0 t + \frac{1}{2} at^2\\\\37.7 = v_o(9.6) +\frac{1}{2} a(9.6)^2\\\\ 37.7 = 9.6v_0 + 46.08a

<h3>For the second position and time</h3>

39.3 = v_o(18.048) +\frac{1}{2} a(18.048)^2\\\\ 39.3 = 18.048v_0 + 162.87a

<h3>Solve the first and second equation together</h3>

37.7 = 9.6v_0 + 46.08a\\\\39.3 = 18.048v_0 + 162.87a\\\\18.048: \ \  680.41 = 173.261v_0 + 831.651a\\\\9.6: \ \ \ \  -(377.28 = 173.261 v_0+ 1563.552a)\\------------------\\303.13 = -731.901a\\\\-a = \frac{303.13}{731.901} \\\\-a = 0.414 \ m/s^2\\\\|a| = 0.414 \ m/s^2

Thus, the constant acceleration of the object is 0.414\ m/s^2.

Learn more about acceleration here: brainly.com/question/14344386

You might be interested in
A hockey player skates with an average speed of 8.25 m/s. The distance the player will travel in 5.60 s is __________ .
OverLord2011 [107]
<h2>Greetings!</h2>

To find this value, you need to remember the speed formula:

3 = 6 / 2

Speed = distance ÷ time

Rearrange to make distance the subject:

Distance = speed * time

Simply plug these values into this:

5.6 * 8.25 = 46.2

<h3>So the player will travel 46.2 metres!</h3>
<h2>Hope this helps!</h2>
7 0
3 years ago
The weight of the atmosphere above 1 m- of
mars1129 [50]

Answer:

1.09 kg.m

Explanation:

no need

4 0
3 years ago
How many neutrons does element X have if its atomic number is 48 and its mass number is 167?
lys-0071 [83]
If its atomic number is 48, then it has 48 protons in the nucleus
of each atom.  Any more mass than that is supplied by the neutrons
that are mixed in there with the protons.

If the mass is 167, and 48 of those are protons, then there are

             (167 - 48)  =  119 neutrons

in each nucleus.

6 0
4 years ago
A person struggles very hard to lift a large boulder. He puts in so much effort, he starts to sweat, his heart rate increases, a
Lesechka [4]
No, he did not perform any work. Work is when you’re using energy which results in a force. Even though he was tired and sweaty, he did not move the boulder. So therefore he did not perform any work.
5 0
4 years ago
The refrigerant is being recovered from an A/C system. Five minutes after the recovery process is complete, the low-side pressur
SashulF [63]

Answer:

The low side pressure of an A/C system losing vacuum and the pressure rising above zero indicates that there is too much refrigerant in the system.

Explanation:

Considering an A/C system, the condenser fan might be malfunctioning if the low side pressure of the air conditioner is excessive. On the other hand, it's also conceivable that the system has been overcharged with refrigerant.

Stated the scenario that the refrigerant of the system was being recovered, it is an indication that the system is merely overcharged. Even with the engine off, you will notice high pressures.

Either too much oil is present, or there is too much refrigerant in the air conditioning system. In either case, until you let some of that pressure out—ideally, a mechanic should do this—the issue won't go away on its own.

To know more about the pressure scenarios related to AC systems, refer to:

brainly.com/question/17072827

#SPJ4

8 0
2 years ago
Other questions:
  • Why are two balls connected by a spring a good model for two atoms connected by a chemical bond?
    10·1 answer
  • Three identical springs each have the same spring constant k. if these three springs are attached end to end forming a spring th
    6·1 answer
  • What happens when two charged objects physically contact each other?
    11·1 answer
  • a car goes from a velocity zero to a velocity of 15 meters per second East in 2.1 seconds. What is the car's acceleration?
    14·1 answer
  • (WILL MARK BRAINLIEST and 27pts) What is the formula used to calculate the distance to an object in parsecs
    7·2 answers
  • Work is done on a locked door that remains closed while you try to pull it open. True False.
    10·1 answer
  • Cooling systems, such as air conditioners and refrigerators, transfer thermal energy in order to keep homes and cars cool or to
    13·1 answer
  • a 3 kg piece of putty that is moving with a velocity of 10 m/s collides and sticks to an 8 kg bowling ball that was at rest. wha
    6·1 answer
  • You drop a steel ball bearing, with a radius of 2.40 mm, into a beaker of honey. Note that honey has a viscosity of 6.00 Pa/s an
    8·1 answer
  • Its A i did it and i got a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!