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
WARRIOR [948]
3 years ago
12

Suppose you were hanging in empty space at rest, far from the Earth, but at the same distance from the Sun as the Earth. What mi

nimum speed would you need to have in order to leave the solar system entirely and never fall back toward the Sun? The mass of the Sun is 2 × 1030 kg and the radius of the Earth’s orbit is 1.5 × 1011 m.
Physics
2 answers:
OLEGan [10]3 years ago
5 0

Answer:

V = 42187 m/s = 42.18 km/s

Explanation:

schepotkina [342]3 years ago
4 0

Answer:

V = 42187 m/s = 42.18 km/s

Explanation:

given data:

mass of sun is  = 2\times 10^{30} kg

radius of earth orbit is 1.5\times 10^{11} m

minimum speed can be determined by using following formula

V = (\frac{2gM}{r}))^{1/2}

where G is \times 10^{-11}

Plugging all value to get desired value

V  =(\frac{2\times 6.674 \times 10^{-11}2\times 10^{30}}{1.5\times 10^{11}})^{1/2}

V = 42187 m/s = 42.18 km/s

You might be interested in
3. A net force of 15 N acts upon a body of
denis23 [38]

Answer:

25 m/s

Explanation:

F=ma

15 N =(3 kg)a

a = 5 m/s^2

change in velocity = a*t = (5 m/s^2) * (5 secs) = 25 m/s

3 0
4 years ago
What type of simple machine is an electric fan?
GrogVix [38]

Answer:

An electric fan is considered to be a mixture of several simple machines. It includes the Wheel and Axle type, wedges, and the Inclined plane types. The blades of an electric fan are the inclined planes and the wedges.

5 0
3 years ago
A ball is thrown upward. As it passes 5.0 m height it is traveling at 4.0 m/s up. What was its initial upward velocity? (a) 7.0
sveticcg [70]

Answer:

c) 10.7m/s

Explanation:

From the exercise we know that at 5m the ball  is traveling at 4m/s

To calculate its initial velocity we need to solve the following equation:

v_{y}^{2}=v_{oy}^{2}+2g(y-y_{o})

Since the initial height is 0

Solving for v_{o}

v_{oy}=\sqrt{v_{y}^{2}-2gy}=\sqrt{(4m/s)^2-2(-9.8m/s^2)(5m)}=10.7m/s

5 0
3 years ago
3. How long will it take a ball to reach the ground if it falls from a cliff 25 m tall (starting from rest)? What if the ball we
Nady [450]

Answer:

2.26 s

Explanation:

Let's take down to be positive.

Given (in the y direction):

Δy = 25 m

v₀ = 0 m/s

a = 9.8 m/s²

Find: t

Δy = v₀ t + ½ at²

25 m = (0 m/s) t + ½ (9.8 m/s²) t²

25 = 4.9t²

t = 2.26 s

If the ball instead had an initial horizontal velocity of 5 m/s, its initial vertical velocity is still 0 m/s.  So the time to fall is still 2.26 s.

4 0
3 years ago
In your own words, explain how Doppler radar works. Describe the properties of electromagnetic waves and interactions that make
lisov135 [29]

If you stand up in a big room and echo, your voice will echo from the walls. As long as the room is empty. Since the speed of sound is constant, depending on air density, the more humid the air the faster and farther sound travels. The speed of sound is constant, you could measure the time it takes for your voice to echo off the walls. The same thing happens with Doppler radar, but it’s not voice, it has higher frequency signals.<span> </span>

6 0
3 years ago
Read 2 more answers
Other questions:
  • How fast must a 6 kg cat run to have kinetic energy of 150 j?
    9·1 answer
  • Short-range forecasts tends to ________ longer-range forecasts.
    8·1 answer
  • A rock is thrown upward with a velocity of 23 meters per second from the top of a 25 meter high cliff, and it misses the cliff o
    5·1 answer
  • In terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. Your
    6·1 answer
  • If the average speed of an orbiting space shuttle is 27 800 km/h, determine the time required for it to circle Earth. Assume tha
    13·1 answer
  • Assuming that the density of air is 1.3 g/l, how many grams of carbon monoxide are in 1.0 l of air at the maximum allowable conc
    6·1 answer
  • In orbit how high is the altitude
    12·1 answer
  • When it is winter in the northern hemisphere we are receiving?
    5·2 answers
  • A learner has a mixture of sand and water. The best method to separate this solution would be ?
    14·2 answers
  • How can electricity produce heat and light? ​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!