2 years ago

A kangaroo can jump straight up to a height of 2.0 m. What is its takeoff speed

Physics

1 answer:

12345 [234]2 years ago

5 0

7.17m/s glad I could help

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Nadusha1986 [10]

Answer:

Explanation:

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2 years ago

A woman exerts a horizontal force of 4 pounds on a box as she pushes it up a ramp that is 10 feet long and inclined at an angle

stealth61 [152]

Answer:

W = 34.64 ft-lbs

Explanation:

given,

Horizontal force = 4 lb

distance of push, d = 10 ft

angle of ramp, θ = 30°

Work done on the box = ?

We know,

W = F.d cos θ

W = 4 x 10 x cos 30°

W = 40 x 0.8660

W = 34.64 ft-lbs

Hence, work done on the box is equal to W = 34.64 ft-lbs

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2 years ago

Two 1.9 kg masses are 1.1 m apart (center to center) on a frictionless table. Each has + 9.6 μC of charge.

Anni [7]

Answer:

F= 0.6 N

Explanation:

Fe(electrical force)= $k q1q2/r^2$

$k=9*10^9\\q1=-9.6 *10^-6 C\\q2= -9.6*10^-6 C\\r= 1.1m$

So,

$F=\frac{9*10^9*-9.6 *10^-6 C* -9.6*10^-6 C}{1.1^2}$

$F= 0.6 N$

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2 years ago

The bleeder is opened at a caliper and no brake fluid flows out. Technician A says that this is normal and that brake fluid shou

horsena [70]

Answer: b) Technician B only

Explanation:

For the fact no break fluid flows out Of the bleeder valve when It’s opened, that means there’s a blockage stopping the fluid from flowing off.

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2 years ago

Why would a landslide be more likely on a steep mountain than on a gently sloping hill?

Serjik [45]

Steep mountain, due to gravity.

4 0

3 years ago

Read 2 more answers