All categories

3 years ago

1) Which one of the following is vector,B) MomentumC) MassA) EnergyD) Temperature

Physics

1 answer:

yanalaym [24]3 years ago

8 0

Answer:

momentum is a vector quantity that points in the same direction as velocity

Explanation:

You might be interested in

Please help ASAP!!

bixtya [17]

There is kinetic energy when it is sitting at the top, then as it goes towards the bottom, the kinetic energy is transformed into potential energy.

6 0

3 years ago

A wave is a disturbance that carries

viktelen [127]

Answer:

(D) energy from one place to another

6 0

3 years ago

An object has a mass of 25 kg. What is the force of gravity acting on the object?

aleksandrvk [35]

Answer:

Explanation:

Because u don't know the gravity so u take that force and just put it in the gravity spot

5 0

3 years ago

A whistle you use to call your hunting dog has a frequency of 21 kHz, but your dog is ignoring it. You suspect the whistle may n

uranmaximum [27]

The Doppler effect is the right concept to solve this problem. The Doppler effect is understood as the change in apparent frequency of a wave produced by the relative movement of the source with respect to its observer. Mathematically it can be described as,

$f = (1-\frac{v_0}{v})f_0$

Here,

$f_0$ = Frequency of the sound from the Whistle

f = Frequency of sound heard

v = Speed of the sound in the Air

Replacing we have that

$1- \frac{v_0}{343} = \frac{20kHz}{21kHz}$

$\frac{v_0}{343} = 1-\frac{20}{21}$

$\frac{v_0}{343} = \frac{1}{21}$

$v_0 = \frac{1}{21}(343)$

$v_0 = 16.33m/s$

Therefore the minimum speed to know if the whistle is working is 16.33m/s

3 0

3 years ago

Define amoeba what are your plans

cupoosta [38]

Answer:

Amoeba (plural = amoebae) is a well known genus of unicellular organism, a protist. One of its most common species, the Amoeba Proteus, is about 0.2 to 0.3 mm large. The amoeba was first discovered by August Von Rosenhof in 1757.[1] It is a genus of protozoa that moves with false feet, called pseudopodia.

5 0

3 years ago

Read 2 more answers

1) Which one of the following is vector,B) MomentumC) MassA) EnergyD) Temperature​

1) Which one of the following is vector,B) MomentumC) MassA) EnergyD) Temperature