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
Vlad1618 [11]
3 years ago
6

Which of the following forces can change velocity?

Physics
2 answers:
Arte-miy333 [17]3 years ago
5 0

Answer:

Option A and Option D are correct.

Explanation:

We have the Newton's second law, that is rate of change of momentum is force.

      \frac{dP}{dt}=F\\\\\frac{mv-mu}{dt}=F

So if there is a force  mv - mu ≠ 0

                                 v - u ≠ 0

                                 v ≠ u

                     Final velocity ≠ Initial velocity.

  a) Option A is correct since there is a force

  b) Option B is wrong since total force is zero.

  c) Option C is wrong since total force is zero.

  d) Option D is correct since there is an effective force

Option A and Option D are correct.          

andrezito [222]3 years ago
4 0
Unequal opposite forces.
(They're unbalanced.)
You might be interested in
A cheetah runs at a speed of 27.6 m/s. If the
aleksklad [387]

Answer:

256.68m

Explanation:

that is the procedure above

8 0
3 years ago
Divers in acapulco, mexico, dive headfirst at 8 feet per second from the top of a cliff 87 feet above the pacific ocean. during
xxMikexx [17]
Depends on the wieght of his genitals.
8 0
3 years ago
Combine these three velocity vectors into a resultant: 3.0 m/s north, 4.0 m/s east 1.0 m/s west. Identify the resultant vector
Slav-nsk [51]

Answer:

The resultant vector is 1 m/s

Explanation:

The resultant vector is 1 m/s west based on triangle law of vector addition, when two sides of a triangle is represented by two vectors, the resultant vector is the third side of the triangle.

5 0
3 years ago
Ethan made a diagram to compare examples of the first and second laws of thermodynamics. What belongs in the areas marked X and
bazaltina [42]

Answer:

The answer is X: Thermal energy is converted to light energy

Y: A cold spoon placed in hot liquid gets warmer

Explanation:

I took the quiz

4 0
3 years ago
A circuit element consists of a resistor with value 20Ω and inductor with value 10mH connected in series. A voltage of LaTeX: v(
Flura [38]

Answer:

8.97 Watt

Explanation:

Resistance, R = 20 ohm

Inductance, L = 10 mH

V(t) = 20 Cos (1000 t + 45°)

Compare with the standard equation

V(t) = Vo Cos(ωt + Ф)

Ф = 45°

ω = 1000 rad/s

Vo = 20 V

Inductive reactance, XL = ωL = 1000 x 0.01 = 10 ohm

impedance is Z.

Z = \sqrt{R^{2}+X_{L}^{2}}

Z = \sqrt{20^{2}+10^{2}}

Z = 22.36 ohm

V_{rms}=\frac{V_{0}}{\sqrt{2}}

V_{rms}=\frac{20}{\sqrt{2}} = 14.144 V

I_{rms}=\frac{V_{rms}}{Z}=\frac{14.144}{\sqrt{22.36}}=0.634 A

Apparent power is given by

P = Vrms x Irms

P = 14.144 x 0.634

P = 8.97 Watt

6 0
3 years ago
Other questions:
  • OMG PLZ PLZ HELP!!
    12·2 answers
  • What percent of 24 is 18 set up a percent proportion and solve
    9·2 answers
  • A client with hypertension who weighs 72.4 kg is receiving an infusion of nitroprusside (Nipride) 50 mg in D5W 250 ml at 75 ml/h
    8·1 answer
  • The force generated by a long muscle varies as it contracts through its range of movement. At which point is the greatest force
    7·1 answer
  • Figure 23.9 shows a sliding mass on a spring. Assume there is no friction.
    15·1 answer
  • Roberto and Genevieve are trying to separate a mixture of beads using a sifter. The chart below shows the colors and sizes of th
    5·2 answers
  • A mass MM uniform solid cylinder of radius RR and a mass MM thin uniform spherical shell of radius RR roll without slipping. If
    15·1 answer
  • If a motorcycle covers 5km in 10 minutes , how far does it move in 1 second ?​
    7·1 answer
  • Science assessment help pls
    13·2 answers
  • Which statement about the photoelectric effect is true?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!