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
konstantin123 [22]
3 years ago
14

HELPPPPPPPP!!!!! PLZZZ

Physics
2 answers:
Elanso [62]3 years ago
7 0
1. 31. 25m/s
2.200

Thanks me later..
Gennadij [26K]3 years ago
6 0

Answer:

1- 31.25

2-?

3-?

Explanation:

You might be interested in
30cm³ of brine of relative density 1.15 and 42cm³ of water are mixed. What is the density of the final solution​
Aleks04 [339]

Answer:

I think it's the most important part in this

7 0
3 years ago
Un cuerpo suspendido en el aire es capaz de:
Rama09 [41]

Answer:

Explanation:

d

5 0
3 years ago
5. A person fishing from a pier observes that four wave crests pass by in 7.0 s and estimates that the distance between two succ
TiliK225 [7]

Answer:

v= 1.71 m/s

Explanation:

Given that

Distance between two successive crests = 4.0 m

 λ = 4 m

T= 7 sec

T is the time between 3 waves.

3 waves = 7 sec

1 wave = 7 /3 sec

So t= 7/3 s

We know that frequency f

f= 1/t= 3/7 Hz

Lets take speed of the wave is v

v= f λ

f=frequency

λ=wavelength

v= 3/7 x 4 = 12 /7

v= 1.71 m/s

3 0
3 years ago
A light ray strikes a flat, smooth, reflecting surface at an angle of 80° to the normal. What angle does
charle [14.2K]

Answer:

80 angle of incidence=angle of reflection

Explanation:

7 0
3 years ago
Read 2 more answers
The mole is 6.02 x 10 23 particles. If a person masses out the correct molar mass in grams for a substance then she would have a
Leto [7]

Answer:

1 mole of H2O is 18 grams (2 g H + 16 g Oxygen)

36 / 18 = 2

So 2 moles = 2 * 6.02E23 = 12.04E23 = 1.204E24

7 0
3 years ago
Other questions:
  • As a planet's semimajor axis gets smaller, its speed will _______ and its period will _________ .
    9·1 answer
  • 1.
    13·1 answer
  • A bicyclist is in a 50-km race. She says she had an average velocity of 35. What is missing in the cyclist's velocity? A. units
    11·2 answers
  • If an object is thrown upward with an initial velocity of 128 ​ft/second, then its height after t seconds is given by the follow
    14·1 answer
  • What is the displacement for a driver who travels 10 km to get to a point that is 4 km from his starting point
    12·1 answer
  • A uniform electric field is oriented in the −z direction. The magnitude of the electric field is 6500 N/C.
    5·1 answer
  • A glow-worm of mass 5.0 g emits red light (650 nm) with a power of 0.10 W entirely in the backward direction. To what speed will
    11·2 answers
  • Determina el trabajo realizado al desplazar un bloque 3 m sobre una superficie horizontal, si se desprecia la fricción y la fuer
    10·1 answer
  • How much force is required to accelerate a 12 kg mass at m 5 m/s
    13·1 answer
  • D
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!