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maria [59]
3 years ago
6

Will give brainliest if correct Please help

Physics
2 answers:
Mumz [18]3 years ago
5 0

Answer:

85.45

Divide 4,700/55

So C.

aivan3 [116]3 years ago
4 0

Answer:

C.85

Explanation:

Use the equation:

v= fλ ( v=wave speed, f= frequency, λ= wavelength)

4700= 55×λ

λ=4700÷55 =85.45 =85(approximately)

You might be interested in
How many neutrons does an element have of its atomic number is 50 and its mass number is 156?
pshichka [43]

Ok so I think you would first subtract


156 - 50 = 106


Since atomic number is based on the number of protons, you should subtract the 50 from 156


106 should be your answer


Hope this helps!

3 0
4 years ago
The froghopper, Philaenus spumarius, holds the world record for insect jumps. When leaping at an angle of 58.0° above the horizo
Norma-Jean [14]

Answer:

0.528m

Explanation:

a)58.7 cm = 0.587 m

Let g = 9.8m/s2. When the frog jumps from ground to the highest point its kinetic energy is converted to potential energy:

E_p = E_k

mgh = mv^2/2

where m is the frog mass and h is the vertical distance traveled, v is the frog velocity at take-off

v^2 = 2gh = 2*9.8*0.587 = 11.5

v = \sqrt{11.5} = 3.4 m/s

b) Vertical and horizontal components of the velocity are

v_v = vsin(\alpha) = 3.4sin(58^0) = 2.877 m/s

v_h = vcos(\alpha) = 3.4cos(58^0) = 1.8 m/s

The time it takes for the vertical speed to reach 0 (highest point) under gravitational acceleration g = -9.8m/s2 is

\Delta t = \Delta v / g = \frac{0 - 2.877}{-9.8} = 0.293s

This is also the time it takes to travel horizontally, we can multiply this with the horizontal speed to get the horizontal distance it travels

s_h = v_ht = 1.8*0.293 = 0.528 m

3 0
3 years ago
Jake appears to have several personalities. One is his dead cousin Bob, who
bazaltina [42]
The answer is C. Dissociative identity disorder

-

This should be easy to spot
8 0
3 years ago
Read 2 more answers
What type of stretching is beneficial for sports performance and involves momentum​
Katena32 [7]

Answer:

Dynamic stretching

Explanation:

Dynamic stretching is a form of stretching beneficial in sports utilizing momentum from form.

5 0
3 years ago
How much force is needed to make a 225 kg object accelerate at a rate of 2.5 m/s²?
aksik [14]

F=ma using formula and solve your question

8 0
3 years ago
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