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
natima [27]
3 years ago
8

I need help on 4 and 5 please

Physics
1 answer:
Ivan3 years ago
6 0

Answer:

c

Explanation:

You might be interested in
A 400.0 kg storage box is held 10 m above ground by a forklift. What is its gravitational potential energy? (PE = mgh)
castortr0y [4]

Answer: D.) 39,200 J

Via the equation of potential energy PE = mgh where m is mass, g is the average gravity on earth and h is the height.  In this case m = 400 kg, g = 9.8, h = 10 m thus:

P.E.=(400kg)(9.8\frac{m}{s^2} )(10m)=39,200 J

P.E.= 39,200 Joules

7 0
3 years ago
Read 2 more answers
A +2e charge is at the point (-1,0) mm in the x,y plane. A –e charge is at the point (0,1) mm. What is the electric field at the
Gennadij [26K]

Answer:

Let I and j be the unit vector along x and y axis respectively.

Electric field at origin is given by

E= kq1/r1^2 i + kq2/r2^2j

= 9*10^9*1.6*10^-19*/10^-6*(2i+ j)

= (2.88i + 1.44j)*10^-3 N/C

Force on charge= qE= 3*10^-19*1.6*(2.88i +1. 44 j) *10^-3

F= (1.382 i + 0.691 j) *10^-21

 

 Goodluck

Explanation:

4 0
2 years ago
Which of the following is true of high clouds?
Wewaii [24]
I’m pretty sure it’s B
3 0
2 years ago
To find the number of neutrons in an atom, what would you subtract?
kolezko [41]
You look up the element in the periodic table. Subtract the atomic number (small number) from the mass number (big number). The answer is the number of neutrons.
7 0
3 years ago
This should be correct
sweet-ann [11.9K]

Maybe it is, maybe it isn't.  We can't tell, until we see what "this" is. 

Show us a drawing, an equation, an expression, a statement ... something !

5 0
3 years ago
Other questions:
  • So, what is the answer of this assignment?
    11·1 answer
  • Which of earths layers is made up of liquid metal
    10·2 answers
  • A 10000 kg rocket blasts off vertically from the launch pad with a constant upward of 2.25 m/s2 and feels no appreciable air res
    12·1 answer
  • A quarter-wave monopole radio antenna (also called a Marconi antenna) consists of a long conductor of one quarter the length of
    5·1 answer
  • Arrange the following kinds of electromagnetic radiation in order of increasing wavelength: infrared , green light, red light, r
    9·1 answer
  • For a projectile launched from the vertically from the surface the earth with initial velocity v0, the velocity of the projectil
    12·1 answer
  • The process of making alloys involves(Cooling, Heating or mixing) pure metals to remove impurities. Then the pure metals are(bro
    9·2 answers
  • Two engines create SIL values of 75 dB and 85 dB respectively. What dB reading would you expect when both are run simultaneously
    11·1 answer
  • What makes the element named iron (Fe) different from the element named nickel (Ni)? A. Iron is a solid but nickel is a gas. B.
    8·1 answer
  • 1 5kg cat is lifted 2 m into the air.how much gpe does it gain?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!