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
FrozenT [24]
3 years ago
5

A river current has a velocity of 5 km/h relative to the shore. A boat moves in the same direction as the current at 4 km/h rela

tive to the river. How do you calculate the velocity of the boat relative to the shore?
subtract the boat’s velocity from the river’s velocity

add the river’s velocity to the boat’s velocity

divide the river’s velocity by the boat’s velocity
Physics
2 answers:
AleksAgata [21]3 years ago
7 0
<span>Add the river’s velocity to the boat’s velocity.</span>
Alona [7]3 years ago
7 0

Answer:

Add the river’s velocity to the boat’s velocity

Explanation:

It is given that,

A river current has a velocity of 5 km/h relative to the shore. A boat moves in the same direction as the current at 4 km/h relative to the river. We need to calculate the velocity of the boat relative to the shore.

As the two vectors are going in same direction. So, the velocity of the boat relative to the shore can be calculated by adding the river's velocity to the boat's velocity. So, the correct option is (c) "add the river’s velocity to the boat’s velocity".

You might be interested in
Distance from any point on a wave to an identical point on the next wave?
lesantik [10]
It's called the "Wavelength". It corresponds to <span>the distance from any point on a wave to an identical point on the next wave and could also be from crest to crest or trough to trough.

Hope this helps !

Photon</span>
6 0
3 years ago
A 300N box on a 43 degree angle.
Ksenya-84 [330]

Answer:is this a question??? I’m so confused

Explanation:

7 0
2 years ago
How do the current and coltage readings compare to before the wires were switched. Explain how to interpret them physically?
Blababa [14]
  • The potential difference between two locations in an electric circuit is measured using a voltmeter.
  • If the electricity passes through the voltmeter it shows deflection.

<h3>What is the purpose of a voltmeter?</h3>
  • A voltage meter, usually referred to as a voltmeter, is a device that measures the voltage, or potential difference, between two points in an electrical or electronic circuit.
  • volts is the unit of voltmeter(volts, millivolts, kilovolts)

<h3>What is the explanation for the link between current and voltage?</h3>
  • Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions and temperatures remain constant.

<h3>What is ohm's law in circuit?</h3>
  • V = IR, where V is voltage, I is current, and R is resistance, is known as Ohm's Law.
  • If you know the voltage of the battery in the circuit and how much resistance is in the circuit, you may use Ohm's Law to identify properties of a circuit, such as how much current is flowing through it.

To learn more about current and voltage visit:

brainly.com/question/10254698

#SPJ4

7 0
2 years ago
An auditorium measures 43.0m × 18.0m × 15.0m. The density of air is 1.20 kg/m3. What is the volume of the room in cubic feet? (D
frez [133]
The question here would be what is the volume of the room. The density of air that is given has no use. We simply multiply the dimensions given of the room to determine  the volume.

<span>43.0m × 18.0m × 15.0m = 11610m^3 ( 3.28 ft / 1 m)^3 = 4.09 x 10^5 ft^3</span>
5 0
3 years ago
MRU(movimiento rectilineo uniforme) un movil viaja en linea recta con una velocidad media de 12metros /segundos durante 9segundo
liubo4ka [24]

Answer:

a) 141.6m

b) 8.4m/s

Explanation:

a) to find the total displacement you use the following formula for each trajectory. Next you sum the results:

x_1=v_1t_1=(12m/s)(9s)=108m\\\\x_2=v_2t_2=(4.8m/s)(7s)=33.6m\\\\x_T=x_1+x_2=108m+33.6m=141.6m

hence, the total distance is 141.6m

b) the mean velocity of the total trajectory is given by:

v_m=\frac{v_1+v_2}{2}=\frac{12m/s+4.8m/s}{2}=8.4\frac{m}{s}

hence, the mean velocity is 8.4 m/s

8 0
3 years ago
Other questions:
  • A horizontal force of 24 N is being applied to a box on a level surface. The box is accelerating at the rate of 2.0 against a fr
    13·1 answer
  • Turquoise is what types of rocks sedimentary, metamorphic or igneous
    6·1 answer
  • What is the difference between mass and weight?
    15·1 answer
  • When you "crack" a knuckle, you suddenly widen the knuckle cavity, allowing more volume for the synovial fluid inside it and cau
    11·1 answer
  • a spiral spring of natural length 10.0cm has a scale pan hanging freely in its tower ends . When an object of mass of 20g is pla
    9·1 answer
  • How do u know that liquid exerts pressure ?​
    5·2 answers
  • A skydiver jumps from a stationary helicopter and reaches a steady vertical speed. She then opens her parachute. Which statement
    6·1 answer
  • How to behave in classroom​
    8·1 answer
  • How does gravity work in space? Please help!​
    8·1 answer
  • Which are two characteristics of a proton
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!