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
Neporo4naja [7]
3 years ago
13

A 250-m-wide river flows due east at a uniform speed of 2.8m/s. a boat with a speed of 8.6m/s relative to the water leaves the s

outh bank pointed in a direction 30o west of north. what is the (a) magnitude and (b) direction of the boat's velocity relative to the ground? give the direction as the angle of the velocity from due north, positive if to the east and negative if to the west. (c) how long does it take for the boat to cross the river?
Physics
1 answer:
Alexxx [7]3 years ago
3 0
1050 hopes this helps
You might be interested in
two object gravitationally attract with a force of 20N.if the distance between the two object centers is doubled, then what is t
Usimov [2.4K]
Gravity decreases with the square of the distance, so the new force is (20)/(2*2) = 5N.
8 0
3 years ago
A student is getting ready to go on a bike ride, but her bike’s back tire is flat! She connects a pump to the valve and adds air
Tems11 [23]

Answer: The answer is B. Higher than.

Explanation:

3 0
2 years ago
Read 2 more answers
A. What are the three longest wavelengths for standing waves on a 240-cm-long string that is fixed at both ends?
vovangra [49]

Answer:

a) the three longest wavelengths = 4.8m, 2.4m, 1.6m

b) what is the frequency of the third-longest wavelength = 75Hz

Explanation:

The steps and appropriate formula and substitution is as shown in the attached file.

5 0
3 years ago
A 6 cm long spring extends to 9 cm when a 1 kg load is suspended from it. What would be its length if a 2 kg load were suspended
Ganezh [65]
The answer is D that is the right question
8 0
3 years ago
What is the best use of an atomic model to explain the charge of the particles in thomson's beams
hoa [83]

The best use of an atomic model to explain the charge of the particles in Thomson's beams is:

<u>An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to remove.</u>

<u>Explanation:</u>

In Thomson's model, an atom comprises of electrons that are surrounded by a group of positive particles to equal the electron's negative particles, like negatively charged “plums” that are surrounded by positively charged “pudding”.

Atoms are composed of a nucleus that consists of protons and neutrons . Electron was discovered by Sir J.J.Thomson. Atoms are neutral overall, therefore in Thomson’s ‘plum pudding model’:

  • atoms are spheres of positive charge
  • electrons are dotted around inside

Thomson's conclusions made him to propose the Rutherford model of the atom where the atom had a concentrated nucleus of positive charge and also large mass.

6 0
3 years ago
Other questions:
  • force of 10 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work W is done in stretching it
    5·1 answer
  • . A fixed resistor of resistance 3.54  is part of an electrolysis circuit. In an experiment using this circuit, electrolysis wa
    8·1 answer
  • The apparent westward movement of a planet against the background of stars is called
    12·1 answer
  • How does sound travel through<br> different mediums?
    9·1 answer
  • Which statement does Einstein's theory promote about space and time?
    6·2 answers
  • 31. If Earth's mass was cut in half, your weight<br> would
    10·1 answer
  • Random question, what does hot dog REALLY mean?
    14·1 answer
  • A car has a kinetic energy of 103kJ.
    10·1 answer
  • How much heat transfer is necessary to raise the temperature of a 13.6 kg piece of ice from −20.0ºC to 130ºC? specific heat capa
    10·1 answer
  • Hello <br>Can anyone help me. ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!