answer.
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
vfiekz [6]
2 years ago
3

A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was

in contact with the ball for 0.10 s, what is the magnitude of the average force the bat exerted?
Physics
1 answer:
egoroff_w [7]2 years ago
5 0

Answer: 800 N

Explanation:

Force is change of momentum (p) over change in time: F = ma = dp/dt

change in time dt= 0.10 s

mass = 2 kg

initial velocity v0=20 m/s

final velocity vf= -20 m/s

change in momentum dp= m(vf-v0)

dp=2(-20-20)= -80 N/s

F=dp/dt=-80/.10=-800 N

Since they only want the magnitude, you can drop the negative sign so the answer is just 800 N.

You might be interested in
Show that a directed multigraph having no isolated vertices has an euler circuit if and only if the graph is weakly connected an
sergeinik [125]
If we let
p as the directed multigraph that has no isolated vertices and has an Euler circuit
q as the graph that is weakly connected with the in-degree and out-degree of each vertex equal

The statement we have to prove is
p ←→q (for biconditional)
Since
p → q (assuming that p is strongly connected to q)
q ← p (since p is strongly connected to q)
Therefore, the bicondition is satisfied
5 0
2 years ago
Suppose that you purchased a water bed with the dimensions 2.55 m à 2.53 dm à 245 cm. what mass of water does this bed contain
Nadya [2.5K]

dimensions of the bed is given as

length = 2.55 m

thickness = 2.53 dm = 0.253 m

width = 245 cm = 2.45 m

now the volume of the bed is given as

V = 2.55 * 0.253 * 2.45 m^3

V = 1.581m^3

now the mass of water in it is given as

mass = density * volume

mass = 1000* 1.581

mass = 1581 kg

<em>so it will contain 1581 kg mass in it</em>

6 0
2 years ago
Under which one of the following circumstances will heat transfer occur via convection? Group of answer choices Convection occur
BartSMP [9]

Answer:

1) in metal object heat transfer through the conduction .In vacuum heat transfer through only radiation .

In only gaseous state or in liquid state the heat transfer through convection hence option D is correct

8 0
2 years ago
Read 2 more answers
Satellite technology has allowed us to monitor areas that were once so remote that we had no way of monitoring them. Review the
wolverine [178]

Answer: Satellite technology allows us to monitor and track the changes in the polar ice sheets. This can help us plan and direct conservation efforts for the animals that depend on polar ice in order to survive.

Explanation:

A satellite orbits around Earth. We have different satellites for different purposes. A satellite has transmitter and receiver for sending and receiving information.  For the use of environment, only one statement seems correct that is: Satellite technology allows us to monitor and track the changes in the polar ice sheets. This can help us plan and direct conservation efforts for the animals that depend on polar ice in order to survive.

Rest options are true but not from the environment point of view.

We know that animals are dependent on the environment for their survival. polar ice caps are difficult to reach and monitor. For making conservation plan for the animals residing in these remote areas, satellite technology is very crucial.

5 0
2 years ago
A student wants to investigate the motion of a ball by conducting two different experiments, as shown in Figure 1 and Figure 2 a
Lelu [443]
It equals to G



^the answer
5 0
2 years ago
Other questions:
  • A ladder is leaning against a vertical wall, and both ends of the ladder are at the point of slipping. The coefficient of fricti
    10·1 answer
  • A carmaker has designed a car that can reach a maximum acceleration of 12 meters per second the cars mass is 1515 assuming the s
    10·2 answers
  • Which statements describe characteristics of pseudoscience? Check all that apply.
    6·2 answers
  • A ball thrown straight up climbs for 3.0 sec before falling. Neglecting air resistance, with what velocity was the ball thrown?
    8·1 answer
  • It is initiated by the pressure gradient force. b. It blows from regions of high pressure to regions of low pressure. c. The dir
    14·1 answer
  • Determine the magnitude of force F so that the resultant FR of the three forces is as small as possible.
    11·1 answer
  • An ideal solenoid 20 cm long is wound with 5000 turns of very thin wire. What strength magnetic field is produced at the center
    10·1 answer
  • 10. How far does a transverse pulse travel in 1.23 ms on a string with a density of 5.47 × 10−3 kg/m under tension of 47.8 ?????
    7·1 answer
  • A small object with mass m, charge q, and initial speed v0 = 5.00 * 103 m&gt;s is projected into a uniform electric field betwee
    13·1 answer
  • 1 Which requires more work, lifting a 10kg sack of<br> coal or lifting a 15kg bag of feathers?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!