3 years ago

high school physics, no need detail explain, just give the answer, but you have to make sure thank you

Physics

1 answer:

Goshia [24]3 years ago

6 0

Answer:many questions add point

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What must be your average speed in order to travel 350 km in 5.15 h? *

Alexxandr [17]

V= s/t

=
5.15/ 350

=68.0 km/h

3 0

3 years ago

A balloon has a volume of 3.5-L at 25^ * C . What would be the volume of the balloon if it were placed in a container of hot wat

Romashka-Z-Leto [24]

Answer:

4.3 L

Explanation:

Ideal gas law:

PV = nRT

Rearrange:

V / T = nR / P

Since n, R, and P are constant:

V₁ / T₁ = V₂ / T₂

Plug in values and solve:

(3.5 L) / (25 + 273.15 K) = V / (95 + 273.15 K)

V = 4.3 L

5 0

4 years ago

The annoying sound from a mosquito is produced when it beats its wings at the average rate of 600. wingbeats per second. What is

jok3333 [9.3K]

The frequency is exactly the rate at which the bug beats its wings.
If that "600" that you mentioned is 600 beats per second, then
THAT's the frequency . . . 600 per second. (600 Hz)

3 0

4 years ago

the distance from sevenoaks to penzance by rail is 420 km. At what average speed must a train travel to over this distance in 4

neonofarm [45]

Answer:

s=105 km/hr

Explanation:

s=speed

d=distance

t=time

s=?

d=420km

t=4hrs

equation: s=d/t

s=420/4

s=105km/hr

8 0

3 years ago

When 23Na is bombarded with protons, the products are 20Ne and A. a neutron B. an alpha particle C. a deuteron D. a gamma ray pa

Vikki [24]

Answer:

The correct option is B. an alpha particle.

Explanation:

When ²³Na is bombarded with protons $_{1}^{1}\textrm{H}$ , ²⁰Ne and one alpha particle $_{2}^{4}\textrm{He}$ is released.

The reaction is as follows:

$_{11}^{23}\textrm{Na} + _{1}^{1}\textrm{H} \rightarrow _{10}^{20}\textrm{Ne} + _{2}^{4}\textrm{He}$

Therefore, an alpha particle and ²⁰Ne are released when ²³Na is bombarded with protons.

5 0

4 years ago