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
BabaBlast [244]
3 years ago
10

A 62 kg astronaut is space-walking outside the space capsule and is stationary when the tether line breaks. As a means of return

ing to the capsule, he throws his 3.3 kg wrench at a speed of 20.5 m/s away from the capsule. At what speed does the astronaut move toward the capsule
Physics
2 answers:
DanielleElmas [232]3 years ago
8 0

To solve this problem we must apply the concepts related to the conservation of momentum. We have the two masses of the bodies and the velocity of one of those bodies. Therefore, the initial momentum is equivalent to the final momentum. Mathematically this can be expressed as

P_i = P_f

m_1_v_1 = m_2 v_2

Replacing with our values,

3.3kg(20.5m/s) = (62kg)v_2

Solving for v_2,

v_2= 1.09m/s

Therefore the speed that the astronaut move toward the capsule is 1.09m/s

Leokris [45]3 years ago
3 0

Answer:

Explanation:

Given that,

Mass of astronaut

M = 62kg

Mass of wrench

m = 3.3kg

Speed at which wrench move away from the capsule

v = 20.5m/s

Speed of astronaut?

Let speed of astronaut be V

Since there is no external force, we would apply conservation of momentum

Momentum of the astronaut is equal to the momentum of the wrench

Momentum is given as

P = Mass × Velocity

P(astronaut) = P(wrench)

M×V = m×v

V = m×v/M

V = 3.3×20.5/62

V = 1.09 m/s

The astronaut speed is 1.09m/s

You might be interested in
What is an example of convection
Jet001 [13]
<span>Boiling water.The heat passes from the burner into the pot, heating the water at the bottom. Then, this hot water rises and cooler water moves down to replace it, causing a circular motion.</span>
8 0
3 years ago
Read 2 more answers
A wave has a wavelength of 15 m and a frequency of 10 Hz. What is the speed of this wave?
choli [55]
M/s=hz•m 10hz•15m=150m/s
5 0
3 years ago
A wire of resistance R is cut into ten equal parts which are then connected in parallel. The equivalent resistance of the combin
Greeley [361]

Answer:

<em>The equivalent resistance of the combination is R/100</em>

Explanation:

<u>Electric Resistance</u>

The electric resistance of a wire is directly proportional to its length. If a wire of resistance R is cut into 10 equal parts, then each part has a resistance of R/10.

Parallel connection of resistances: If R1, R2, R3,...., Rn are connected in parallel, the equivalent resistance is calculated as follows:

\displaystyle \frac{1}{R_e}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}+...+\frac{1}{R_n}

If we have 10 wires of resistance R/10 each and connect them in parallel, the equivalent resistance is:

\displaystyle \frac{1}{R_e}=\frac{1}{R/10}+\frac{1}{R/10}+\frac{1}{R/10}...+\frac{1}{R/10}

This sum is repeated 10 times. Operating each term:

\displaystyle \frac{1}{R_e}=\frac{10}{R}+\frac{10}{R}+\frac{10}{R}+...+\frac{10}{R}

All the terms have the same denominator, thus:

\displaystyle \frac{1}{R_e}=10\frac{10}{R}=\frac{100}{R}

Taking the reciprocals:

R_e=R/100

The equivalent resistance of the combination is R/100

6 0
3 years ago
Volcanoes that have fast flowing liquid lava will be narrow like a river
vodomira [7]

Answer:

Shield volcanoes, the third type of volcano, are built almost entirely of fluid lava flows. Flow after flow pours out in all directions from a central summit vent, or group of vents, building a broad, gently sloping cone of flat, domical shape, with a profile much like that of a warrior's shield.

Explanation:

8 0
3 years ago
What are applications of zeroth law of thermodynamics?​
Harrizon [31]

Answer:

Applications of zeroth law of thermodynamics:

1. When we get very hot food, we wait to make it normal. In this case, hot food exchanges heat with surrounding and brings equilibrium.

2. We keep things in the fridge and those things come equilibrium with fridge temperature.

3. Temperature measurement with a thermometer or another device.

4. In the HVAC system, sensors or thermostats are used to indicate temperature. It always comes in a thermal equilibrium with room temperature.

5. If you and the swimming pool you’re in are at the same temperature, no heat is flowing from you to it or from it to you (although the possibility is there). You’re in thermal equilibrium.

6 0
3 years ago
Other questions:
  • A 227 kg motorcycle moves with a velocity of 8 m/s. What is its kinetic energy? _______ Joules
    9·1 answer
  • If a runner decreases his velocity from 0m/s to +20m/s in 2.0s, what is was his average acceleration?
    11·1 answer
  • HURRY PLZ
    9·2 answers
  • The properties of some rare earth elements make them essential ingredients in electronics. Rare earth elements appear together i
    14·2 answers
  • During a thunderstorm, you should crouch under a tree for shelter. <br> a. True<br> b. False
    11·1 answer
  • Coherent light with wavelength 460 nm falls on a pair of slits. On a screen 1.86 m away, the distance between dark fringes is 3.
    6·1 answer
  • 3.113 A heat pump is under consideration for heating a research station located on Antarctica ice shelf. The interior of the sta
    7·1 answer
  • a crane lifts a 75 kg mass at a height of 8m. calculate the gravitational potential energy gained by the mass (g= 10N)
    11·1 answer
  • When solving projectiles you will often get two possible times for solutions. Sometimes a time will be negative and can be rejec
    5·1 answer
  • I need help with the problem below
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!