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
iragen [17]
3 years ago
8

Bob is pushing a box across the floor at a constant speed of 1.2 m/s, applying a horizontal force whose magnitude is 75 N. Alice

is pushing an identical box across the floor at a constant speed of 2.4 m/s, applying a horizontal force.
What is the magnitude of the force that Alice is applying to the box?
F = N
Physics
1 answer:
Nadya [2.5K]3 years ago
6 0

Answer:75 N

Explanation:

Given

Bob is pushing the box with a force of 75 N with constant speed. Constant speed indicates that net force on the block is zero i.e. friction force is balancing the applied force.

so friction force f=75 N

If Alice is pushing an identical box with constant speed so net force acting on box must be equal to an applied force.

As the friction force is 75 N so Alice must be applying a force of 75 N  

You might be interested in
A night lamp uses a 30 W bulb. If it is left on continuously for 8 hours, how much energy will it use?
den301095 [7]

Answer:

Explanation:

30W * 8 h = 240 Wh = 0.240 kWh

6 0
3 years ago
Read 2 more answers
Balancing Chemical Equations
finlep [7]

1.   2 C2H6 + 7 O2 = 6 H2O + 4 CO2

8 0
3 years ago
Read 2 more answers
A fast-food restaurant uses a conveyor belt to send the burgers through a grilling machine. if the grilling machine is 1.2 m lon
Vinil7 [7]

length of the grilling machine is 1.2 m

time taken to cook the burger is 2.7 min = 162 s

so the speed of the machine should be like this that if must have to cook till it cross the machine

v = \frac{d}{t}

v = \frac{1.2}{162}

v = 7.41* 10^{-3} m/s

now in one minute the total length of the machine that is covered is given by

L = v*t

L = 7.41*10^{-3}* 60 = 44.4 cm

now distance between the burgers is 15 cm

so total production rate will be

N = \frac{44.4}{15} = 3 burger/min

so it will produce 3 burger per minute

8 0
3 years ago
How long would it take for a ball dropped from the top of a 576-foot building to hit the ground? round your answer to two decima
LUCKY_DIMON [66]
If a ball is if a ball is dropped from a 576ft building it would take about 8 seconds for it to hit the ground.
4 0
3 years ago
The presence of which phenomenon proved the predictability of the big bang theory?
Law Incorporation [45]
The measurement of the expansion of the universe was what gave rise to the big bang theory and it's predictions. 
7 0
3 years ago
Read 2 more answers
Other questions:
  • How does gravity make a star
    14·1 answer
  • A vertical spring stretches 4.4 cm when a 16-g object is hung from it. the object is replaced with a block of mass 22 g that osc
    8·1 answer
  • Use vectors to decide whether the triangle with vertices P(1, −2, −1), Q(2, 1, −3), and R(6, −1, −4) is right-angled. Yes, it is
    6·1 answer
  • Plz help plz give u brainlist<br>state principal of pin hole camera??<br>​
    13·1 answer
  • A 750-kg car moving at 23 m/s brakes to a stop. Assume that all the kinetic energy is transformed into thermal energy. The brake
    7·1 answer
  • Static electricity occurs because_____________ are relatively easy to scrape off atoms ...?
    11·1 answer
  • is it possible for the thermal energy in a bowl of cold water equal to the thermal energy in a bowl of hot water
    6·1 answer
  • A 2 kg object being pulled across the floor with a speed of 10 m/sec is suddenly
    12·1 answer
  • A cylinder with a radius of 1.8 cm is floating in water as shown below. The mass of the cylinder is 1.80 kg. Calculate the depth
    5·1 answer
  • astronauts brought back 500 lb of rock samples from the moon. how many kilograms did they bring back? 1 kg
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!