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
olga_2 [115]
3 years ago
9

n outer space, a constant net force with a magnitude of 140 N is exerted on a 32.5 kg probe initially at rest. A) What accelerat

ion do es this force produce? B) How far does the probe travel in 10 s?
Physics
1 answer:
musickatia [10]3 years ago
7 0

Answer:

a) 4.31 m/s²

b) 215.5 m

Explanation:

a) According to Newton's first law of motion

The net force applied to particular mass produced acceleration, a, according to

F = ma

F = 140 N

m = 32.5 kg

a = ?

140 = 32.5 × a

a = 140/32.5 = 4.31 m/s²

b) Using the equations of motion, we can obtain the distance travelled by the object in t = 10 s

u = initial velocity of the probe = 0 m/s (since it was initially at rest)

a = 4.31 m/s²

t = 10 s

s = distance travelled = ?

s = ut + at²/2

s = 0 + (4.31×10²)/2 = 215.5 m

You might be interested in
The frequency of which type of electromagnetic wave is just higher than that of radio waves? Infrared rays Ultraviolet rays X-ra
Mars2501 [29]
Gamma-rays, the explanation and information is found in the image below.

4 0
2 years ago
Read 2 more answers
True or false<br> two different notes can have the same fundamental frequency
Grace [21]

Answer:

true:)

Explanation:

3 0
3 years ago
Andy (mass 80.0 kg), Randy (mass 60.0 kg), and twins Candy and Mandy (each with a mass of 70.0 kg) climb into a 1000.-kg car, ca
PolarNik [594]

To solve this problem we will apply the relationship between Newton's second law and Hooke's law, with which we will define the balance of the system. From the only unknown in that equation that will be the constant of the spring, we will proceed to find the period of vibration of the car.

We know from Hooke's law that the force in a spring is defined as

F = kx

Here k is the spring constant and x the displacement

While by Newton's second law we have that the Weight can be defined as

F = mg

Here m is the mass and g the gravity acceleration.

The total weight would be

F = (80+60+70)(9.8)

F = 2058 N

Each spring takes a quarter of the weight, then

F_s = \frac{2058}{4} = 514.5N

Since the system is in equilibrium the force produced by the weight in each spring must be equivalent to the force of the spring, that is to say

F_s = F

\frac{1}{4} mg = kx

514.5N = k(0.04)

k = 12862.5kg \cdot m/s^2

The period of a spring-mass system is given as

T = 2\pi \sqrt{\frac{M}{4k}}

The total mass is equivalent as the sum of all the weights, then replacing we have that the Period is

T = 2\pi \sqrt{\frac{1000+80+60+70}{4( 12862.5)}}

T = 0.9635s

Therefore the period of vibration of the car as it comes to rest after the four get in is 0.9635s

6 0
3 years ago
PLEASE HELP ME!!!
love history [14]
B.wrap more coils of wire around nail
this is the answer because the more coils the stronger the electrmagnet
3 0
3 years ago
Witch is the property of matter in witch a substance can transfer heat or electricity
saw5 [17]

Answer:

B. Conductivity.

Explanation:

Conductivity is the quantity of heat passing per second through a slab of unit cross-sectional area when the temperature gradient between the two faces is unity when put in heat.

4 0
3 years ago
Other questions:
  • Alexandria became the center for _____.<br><br> its science
    8·1 answer
  • If there is an attractive force between all objects, why do we not feel ourselves gravitating toward massive buildings in our vi
    14·2 answers
  • A pendulum has 573 J of potential energy at the highest point of its swing. How much kinetic energy will it have at the bottom o
    13·1 answer
  • You hold a bucket in one hand. In the bucket is a 500 g rock. You swing the bucket so the rock moves in a vertical circle 2.2 m
    5·1 answer
  • If an atom gains two electrons in a chemical reaction, what is its charge?
    10·1 answer
  • How fast is a cat that runs 3 kilometers in 0.5 hours
    14·1 answer
  • A rock is dropped into the Grand Canyon. It takes 18 seconds to hit the bottom. Calculate how deep the canyon is.
    14·1 answer
  • Use the diagram to answer each question.
    5·2 answers
  • Two different liquids are poured into a jar until it is half full. The jar is then sealed shut and shaken. The liquids undergo a
    13·1 answer
  • Sam stands on a 20 m high cliff and throws a 45 g rock with an initial velocity of 5 m/s [forward] to the water below. Use the c
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!