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
Verdich [7]
3 years ago
15

Calculate the momentum of a 1600 kg car traveling at 20 m/s

Physics
1 answer:
sergij07 [2.7K]3 years ago
5 0
P = mv

p = (1600kg)(20m/s)

p = 32000 N

(3.2x10^4 N)
You might be interested in
two thermometers, calibrated in celsius and fahrenheit respectively, are put into a liquid. the reading on the fahrenheit scale
Viefleur [7K]
Two thermometers, calibrated in celsius and fahrenheit respectively, are put into a liquid. the reading on the fahrenheit scale is four times the reading on the celsius scale. the temperature of the liquid is:

6 0
3 years ago
1-A train travels 100 km to reach town A in one hour and 15 min. The train stops at station A for 45 minutes. Then it travels 15
kirill [66]

Answer 1) : 62.5 km/hour is the average velocity of the train.

2) The final velocity of the car at the end of 75 m is 14.69 m/s

Explanation:

1) Displacement of the train = 100 km + 150 km = 250 km

Total time train took =1 hour 15 min+ 45 min + 2 hours = 240 min = 4 hours

Average velocity=\frac{Displacement}{time}=\frac{250 km}{4 hour}=62.5 km/h

62.5 km/hour is the average velocity of the train.

2) The acceleration of the car, a= 1.2 m/s^2

Distance covered by the car,s = 75 m

Initial velocity of the car ,v_i = 6 m/s

Final velocity of thre car ,v_f=?

Using third equation of motion:

v_{f}^2=v_{i}^2+2as=(6 m/s)^2+2\times 1.2 m/s\times 75 m=216 m^2/s^2

v_{f}=14.69 m/s

The final velocity of the car at the end of 75 m is 14.69 m/s

8 0
3 years ago
Is it using energy when someone stands against a locker that doesn’t move
soldi70 [24.7K]

When someone stands against a locker and is does not moving at all, then there will be no displacement and since displacement = 0

Work done also becomes equal to zero.

Work done is usually defined as change in energy. Since the work done is zero there has been no energy used.

5 0
3 years ago
Which is the smallest unit of life?
emmasim [6.3K]

Answer:

the cell is the smallest unit

7 0
2 years ago
a college student produces about 100 kcal of heat per hour on the average what is the rate of energy production and joules
Bond [772]

Given:

Amount of heat produced = 100 kcal per hour

Let's find the rate of energy production in joules.

We know that:

1 calorie = 4.184 Joules

1 kcal = 4.184 Joules

To find the rate of energy production in Joules, we have:

\begin{gathered} Rate=100\ast4.184 \\  \\ \text{Rate}=418.4\text{ KJ/hour} \end{gathered}

Therefore, the rate of energy production in joules is 418.4 kJ/h which is equivalent to 418400 Joules

ANSWER:

418.4 kJ/h

6 0
1 year ago
Other questions:
  • Three balloons are inflated to the same size. The three balloons are submerged in buckets filled with ice water, tap water and w
    8·2 answers
  • If you wanted to duplicate conditions in a laboratory that produce sedimentary rock, what would you need to do?
    11·2 answers
  • SOME PLEASE HELP ME RN IS AN EMERGENCY
    7·1 answer
  • Which of these is an example of an elastic collision? A. The cue ball crashing into the eight balls on a pool table. B. Two cars
    9·1 answer
  • How does a thermostat know how to keep hot soup hot and cold soup cold?
    11·1 answer
  • 1. Find the kinetic energy of a .023 kg bullet moving at 420 m/s.
    10·1 answer
  • Because the block is not moving, the sum of the x components of the forces acting on the block must be zero. Find an expression
    12·1 answer
  • How much voltage (in terms of the power source voltage bV) will the capacitor have when it has started at zero volts potential d
    15·1 answer
  • A charge of 4.5x10^-5 C is placed in an electric field with a strength of 2.0x10^4 N/C. What is the electric force acting on the
    13·1 answer
  • A sample of O2 occupies 75 L at 1 atm. If the volume of the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!