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
ololo11 [35]
3 years ago
15

A net force of 25.0 N causes an object to accelerate at 4.00 m/s2. What is the mass of the object?

Physics
2 answers:
maxonik [38]3 years ago
3 0

Answer:

6.25kg

Explanation:

m=F/a = 25/4 = 6.25kg

defon3 years ago
3 0

Answer:

Mass, m = 6.25 kg

Explanation:

It is given that,

Net force acting on the object, F = 25 N

Acceleration of the object, a=4\ m/s^2

Let m is the mass of the object. Using Newton's second law of motion. The force is given by :

F = ma

m=\dfrac{F}{a}

m=\dfrac{25\ N}{4\ m/s^2}

m = 6.25 kg

So, the mass of the object is 6.25 kg. Hence, this is the required solution.

You might be interested in
13. If both the directions of velocity and acceleration are negative, ...........
lawyer [7]

Answer:

B)velocity of object decreases

Explanation:

Consider the positive x axis as positive direction

Assume a body moving in negative x-axis direction

It's acceleration also alone negative x-axis direction

So according to our consideration

velocity and acceleration values are negative

That is both are towards negative x direction

But as both velocity and acceleration are in same direction, MAGNITUDE of velocity increases

But as magnitude increases in negative direction, velocity value decreases

But speed value increases(As speed is scalar and velocity is a vector)

3 0
3 years ago
A converging-diverging nozzle has a throat area of 10 cm2 and an exit area of 28.96 cm2 . A normal shock stands in the exit when
Svetllana [295]

The tank pressure is 5.08 kPa and the mass flow rate is 2.6 kg/s.

The given parameters:

  • <em>Throat area of the nozzle, </em>A^*<em> = 10 cm² = 0.001 m²</em>
  • <em>The exit area of the nozzle, A = 28.96 cm² = 0.002896 m²</em>
  • <em>Air pressure at sea level = 101.325 kPa</em>

The ratio of the areas of the converging-diverging nozzle is calculated as follows;

= \frac{A}{A^*} \\\\= \frac{0.002896}{0.001} \\\\= 2.896

From supersonic isentropic table, at \frac{A}{A^*} = 2.896, we can determine the following;

M_e = 2.6 \ kg/s\\\\\frac{P_o}{P_e} = 19.954

The tank pressure is calculated as follows;

\frac{P_o}{P_e} = 19.954 \\\\P_e = \frac{P_o}{19.954} \\\\P_e = \frac{101.325 \ kPa}{19.954} \\\\P_e = 5.08 \ kPa

Thus, the tank pressure is 5.08 kPa and the mass flow rate is 2.6 kg/s.

Learn  more about converging-diverging nozzle design here: brainly.com/question/13889483

8 0
2 years ago
Which equation is most likely used to determine the acceleration from a velocity vs:time graph?
tresset_1 [31]
Acceleration, a =  (v - u)/t

where v is the final velocity, u is the initial velocity, and t is the time.

This formula on a velocity time graph represents the slope of the graph.
 
7 0
3 years ago
Read 2 more answers
Question 1 (1 point)
Juli2301 [7.4K]

Hello!

\large\boxed{800Ns}

Remember that impulse is equivalent to:

Impulse = force (N) × time (s)

Plug in the given force and time:

Impulse = 25 × 32

Impulse = 800 Ns

3 0
3 years ago
Weight and mass are interchangeable terms. True or False
Nonamiya [84]
It's false. Mass is a way of measuring how much matter an object contains, where as weight measures how hard gravity is pulling on an object. While on earth, these are typically interchangeable. However, if you were to go to Mars, your mass would stay the same, but the weight will be different. This is because you still contain the same amount of matter, but the gravity's pull will be different because the moon has a different gravitational pull than the earth. Hope this helps!
5 0
3 years ago
Read 2 more answers
Other questions:
  • 1)why do we get electric shock while holding a live wire barefooted and not when wearing rubber shoes?
    8·1 answer
  • Does mars has a bulge near its equator ?
    12·1 answer
  • What is the difference between a distance time graph and a speed time graph?
    9·1 answer
  • John has a boat that will travel at the rate of 15 kph in still water. he can go upstream for 35 km in the same time it takes to
    15·1 answer
  • Suppose you toss a tennis ball upward.a) Does the kinetic energy of the ball increase or decrease as it moves higher?b) What hap
    11·1 answer
  • What is the effect on climate from these factors??
    15·1 answer
  • I’ll give brainliest and 10 points
    12·1 answer
  • What is the value of n?
    8·2 answers
  • A. How much work is done by a man standing with a load of 100 kg?ANS=0​
    9·1 answer
  • What do ethical guidelines for research with human subjects mean?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!