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
Debora [2.8K]
3 years ago
7

Kid A has jumped off the sled! (RIP)

Physics
1 answer:
balandron [24]3 years ago
5 0

Answer:

46.45 m/s

Explanation:

Total momentum before jump = Total momentum after jump

11.7 * ( 36.7 + 45.2 ) = ( 36.7 * (-31.1) ) + ( 45.2 * v )

v*45.2 - 1141.37 = 958.23

v = 2099.6/45.2 = 46.45

You might be interested in
If John mows 11.5 meters of lawn from east
Oksanka [162]
I believe it would be 1.6 East
8 0
3 years ago
If the same pressure is exerted over a greater area will more of less force result? Group of answer choices :
Zigmanuir [339]

Answer:

More force

Explanation:

Pressure and force are related by the equation:

p=\frac{F}{A}

where

p is the pressure

F is the force

A is the area

We can re-arrange the equation as

F=pA

In this problem, the pressure is kept the same (p' = p) while the area is increased. As we can see from the previous equation, the force applied is directly proportional to the area: therefore, a greater area means also a greater force.

8 0
3 years ago
When a negatively charged object moves in the opposite direction of an electric force field, the potential energy of the object
Simora [160]
The best and most correct answer among the choices provided by the question is decreases <span>.


</span>The potential energy of the object <span>decreases.</span>

Hope my answer would be a great help for you.    
If you have more questions feel free to ask here at Brainly.
3 0
3 years ago
Read 2 more answers
Mars moves in an elliptical orbit around the sun, and the mass of mars is much less than the mass of the sun. at the instant sho
Bess [88]
I believe the answer would be that the system potential energy will increase; while the Mar's angular momentum will remain the same. 
Mars rotates on its axis, completing one revolution every 24.6 hours. The axis of mars is tilted at 25 degrees and 12 minutes relative to its orbital plane about the Sun. This produces seasons on the surfaces of Mars, similar to the seasons on Earth. 
4 0
2 years ago
A metal begins to emit electrons, as measured in an apparatus similar to the one Hertz used, when exposed to light at a waveleng
balandron [24]

Answer : The work function of this metal is, 5.81\times 10^{-19}J

Explanation : Given,

Wavelength of light = 342nm=342\times 10^{-9}m

Formula used :

E=h\nu_o=\frac{hc}{\lambda}

where,

E = work function of metal

h = Planck's constant = 6.626\times 10^{-34}Js

\nu_o = threshold frequency

\lambda = wavelength of light

c = speed of light = 3\times 10^8m/s

Now put all the given values in this formula, we get the value of work function of this metal.

E=\frac{hc}{\lambda}

E=\frac{(6.626\times 10^{-34}Js)\times (3\times 10^8m/s)}{(342\times 10^{-9}m)}

E=5.81\times 10^{-19}J

Therefore, the work function of this metal is, 5.81\times 10^{-19}J

7 0
3 years ago
Other questions:
  • DESPERATEA rocket of mass 40 000 kg takes off and flies to a height of 2.5 km as its engines produce 500 000 N of thrust.
    6·1 answer
  • What is true of electrolytic cells but is not true of galvanic cells?
    13·2 answers
  • Why is the moon’s surface cratered, but the Earth’s is not
    6·1 answer
  • Two 2.0 kg bodies, A and B, collide. The velocities before the collision are ~vA = (15ˆi + 30ˆj) m/s and ~vB = (−10ˆi + 5.0ˆj) m
    11·1 answer
  • In the atmosphere water vapor condenses to form clouds.   Please select the best answer from the choices provided T F
    11·2 answers
  • 20 kg object travels 28 meter and stops. coefficient friction= 0.085 how much work was done by friction?
    9·1 answer
  • Calculate how far a ball will travel horizontally if the ball reaches a high of 1.5 m above the ground and is thrown at a horizo
    14·1 answer
  • How many significant figures are in 73,102L
    7·1 answer
  • 11–8 Consider a heavy car submerged in water in a lake with a flat bottom. The driver’s side door of the car is 1.1 m high and 0
    10·1 answer
  • 2. What is one reason why the author includes information about religious beliefs during the time of Johannes Fabricius' discove
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!