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
Blizzard [7]
3 years ago
5

A projectile is launched at an angle into the air at velocity v and angle θ. Determine its vertical acceleration.

Physics
1 answer:
Vesna [10]3 years ago
5 0

g = t.u \sin(?)
You might be interested in
A vector is<br> In English
zzz [600]
A vector is a quantity or phenomenon that has two independent properties: magnitude and direction.
3 0
2 years ago
A 2.0 moles of a monatomic ideal gas expands isothermally from state a to state b, Pa = 600 Pa, Va = 3.0 m3, and Vb = 9.0 m3.
krek1111 [17]

Answer:

a) Pb= 200 PA

b).work done= -3600 joules

c).3600joules

D).the system works under isothermal condition so no heat was transferred

Explanation:

2.0 moles of a monatomic ideal gas expands isothermally from state a to state b, Pa = 600 Pa, Va = 3.0 m3, and Vb = 9.0 m3.

a). PbVb= PaVa

Pb= (PaVa)/VB

Pb= (600*3)/9

Pb= 1800/9

Pb= 200 PA

b). work done= n(Pb-Pa)(Vb-Va)

Work done= 2*(200-600)(9-3)

Work done= -600(6)

Work done=- 3600 Pam³

work done= -3600 joules

C). Change in internal energy I the work done on the system

= 3600joules

D).the system works under isothermal condition so no heat was transferred

4 0
3 years ago
A children's roller coaster is released from the top of a track. If its maximum speed at ground level is 3 m/s, find the height
san4es73 [151]

Answer:

h = 0.46 m

Explanation:

According to the law of conservation of energy:

Potential Energy Lost by Roller Coaster = Kinetic Energy Gained by Roller Coaster

mgh = \frac{1}{2}mv^2\\\\2gh = v^2\\\\h = \frac{v^2}{2g}

where,

h = height = ?

v = speed at bottom = 3 m/s

g = acceleration due to gravity = 9.81 m/s²

Therefore,

h = \frac{(3\ m/s)^2}{(2)(9.81\ m/s^2)}

<u>h = 0.46 m</u>

4 0
2 years ago
Which can happen during a physical change?
4vir4ik [10]
C.<span>Molecules can move more rapidly and freely and change states.
</span>
3 0
2 years ago
a large parallel plate capacitor has plate seperation of 1.00 cm and plate area of 314 cm^2. The capacitor is connected across a
Whitepunk [10]

Answer:

W = -2.76\times 10^{-9}~J

Explanation:

The work done on the capacitor is equal to the difference in potential energy stored in the capacitor in two different cases.

The potential energy is given by the following formula:

U = \frac{1}{2}CV^2

where C can be calculated using the plate separation and area.

C = \epsilon\frac{A}{d} = \epsilon\frac{0.0314}{0.01} = 3.14\epsilon

Therefore, the potential energy in the first case is

U = \frac{1}{2}3.14\epsilon (20)^2 = 628\epsilon

In the second case:

C_2 = \epsilon\frac{A}{d} = \epsilon\frac{0.0314}{0.02} = 1.57\epsilon\\U = \frac{1}{2}C_2 V^2 = \frac{1}{2}1.57\epsilon (20)^2 = 314\epsilon

The permittivity of the air is very close to that of vacuum, which is 8.8 x 10^-12.

So, the difference in the potential energy is

W = U_2 - U_1 = \epsilon(314 - 628) = -314 \times 8.8 \times 10^{-12} = -2.76\times 10^{-9}~J

6 0
3 years ago
Other questions:
  • Do you think the benifits of nuclear power outweigh the potential drawbacks
    11·1 answer
  • The deepest point of lake titicaca in south america is -922feet relative to its surface. the deepest point is 11,542 feet above
    10·2 answers
  • The roller coaster is designed according to safety regulations that prohibit the speed of the car from exceeding 20 m/s. find th
    8·1 answer
  • Weight is measured in: grams, kilograms, metric tons, or pounds
    5·1 answer
  • Friction is a force in which two objects __________.
    10·2 answers
  • How many additional electrons does this atom of oxygen need in its valence shell to satisfy the octet rule?
    13·2 answers
  • A body has masses of 0.013kg and 0.012kg in oil and water respectively, if the relative density of oil is 0.875, calculate the m
    5·1 answer
  • Please help with this question!!
    13·1 answer
  • two projectile are thrown at the same intial velocity the angle of the one is theta ,the angle of the oher is 90-theta /can both
    8·1 answer
  • Discuss what would happen to electrostatic force acting between two charged particles if you did the following. A. Increased the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!