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
ludmilkaskok [199]
3 years ago
15

Will and elephant fall faster than a mouse and why​

Physics
2 answers:
Katarina [22]3 years ago
8 0

Answer:

elephant fall faster then a mouse because of the air resistance.

hope it helps.

maks197457 [2]3 years ago
5 0

Explanation:

elephant fall faster than a mouse and because of the air resistance .

hope it is helpful to you

You might be interested in
A statue is made of bronze, which is an alloy of about 80% copper and 20% tin. Which metal is in the higher concentration in thi
skad [1K]
The answer is B because it's 80 percent copper, that's a greater number then 20.
3 0
3 years ago
Read 2 more answers
a farmer lifts a bale of hay that is 12m off the ground . If he uses a force of 350 n, how much work does the farmer do?
hjlf

Answer:

4200 Joules

Explanation:

Work done =force x distance

From the question , we’re given f =350N ,

d = 12m

Using the above formula, we have

Workdone = 350 x 12

= 4200 Joules

5 0
3 years ago
A box is placed on a conveyor belt that moves with a constant speed of 1.05 m/s. The coefficient of kinetic friction between the
sveticcg [70]

Answer:

The box stops in 0.139 seconds, after moving 7.29cm (0.0729m) backwards relative to the belt.

Explanation:

As the box is initially at rest relative to the earth, it is moving backwards with a speed of 1.05m/s relative to the belt. Then, the frictional force acts on the box to make it stop relative to the belt. So, we first have to write the equations of motion of the box in each axis:

x: f_k=ma\implies a=\frac{f_k}{m} \\\\y: N-mg=0\implies N=mg

Since the frictional force f_k is equal to f_k=\mu_k N=\mu_k mg, then we have that the acceleration is:

a=\frac{\mu_k mg}{m}=\mu_k g

Now, from the definition of acceleration we get:

a=\frac{v-v_0}{t}\implies t=\frac{v-v_0}{a}

And, as the final velocity is zero because the box gets to a stop, we have:

t=-\frac{v_0}{a}=-\frac{v_0}{\mu_k g}

(Don't worry about the negative sign. It will disappear because the initial velocity is also negative, since we take the box initially moving backwards)

Then, plugging in the given values, we calculate the time:

t=-\frac{(-1.05m/s)}{0.770(9.81m/s^{2})}=0.139s

In words, the time the box takes to stop sliding relative to the belt is 0.139s.

The displacement of the box in this time, is given by the kinematics formula:

v^{2}=v_0^{2}+2ax\implies x=-\frac{v_0^{2}}{2\mu_kg}

Finally, we calculate the displacement:

x=-\frac{(1.05m/s)^{2} }{2(0.770)(9.81m/s^2)}=-0.0729m=-7.29cm

This means that the box moves 7.29cm backwards relative to the belt.

4 0
3 years ago
When a guitar string is plucked, in what direction does the wave travel? In what directions does the string vibrate?
Alex

Answer: the waves travel in an horizontal direction while the strings vibrate in a vertical direction.

4 0
3 years ago
Read 2 more answers
Give a example of scalar quantity
Serhud [2]

speed, volume, mass, temperature and power

7 0
3 years ago
Read 2 more answers
Other questions:
  • A swimmer bounces straight up from a diving board and falls feet first into a pool. she starts with a velocity of 4.00m/s4.00m/s
    14·1 answer
  • A.) A hardworking ant must supply 0.0650 N to pull a piece of fruit at constant velocity 8.40 cm up the colony's ant hill. If th
    10·1 answer
  • A small object carrying a charge of -4.00 nC is acted upon by a downward force of 19.0 nN when placed at a certain point in an e
    12·1 answer
  • A particle moves along a circle with radius R, so that the tangential component of its acceleration is constant. At t = 0 the ve
    7·1 answer
  • The units we use to measure the sound intensity level are _____.
    7·1 answer
  • A machine part is undergoing SHM with a frequency of 5.00Hz and amplitude 1.80cm . How long does it take the part to gofrom x=0
    13·1 answer
  • Which equation is used to calculate the magnetic force on a charge moving in a magnetic field?
    7·2 answers
  • 24. A car is travelling along an expressway at 90 km/h. The driver spots a stalled car and some traffic congestion on the road a
    8·1 answer
  • I need the answer please
    7·1 answer
  • An elf pushes a sleigh with force of 9N over a distance of 11m. How much work did the elf. Do on the sleigh
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!